Content uploaded by Sui Kiat Chang
Author content
All content in this area was uploaded by Sui Kiat Chang on Jan 25, 2018
Content may be subject to copyright.
Review of dried fruits: Phytochemicals,
antioxidant efficacies, and health benefits
Sui Kiat Chang a, Cesarettin Alasalvar a,*, Fereidoon Shahidi b
aTÜBI
˙TAK Marmara Research Center, Food Institute, P.O. Box 21, 41470 Gebze-Kocael
і
, Turkey
bDepartment of Biochemistry, Memorial University of Newfoundland, St. John’s, NL A1B 3X9, Canada
ARTICLE INFO
Article history:
Received 10 August 2015
Received in revised form 6
November 2015
Accepted 11 November 2015
Available online 17 December 2015
ABSTRACT
Dried fruits, which serve as important healthful snacks worldwide, provide a concentrated
form of fresh fruits. They are nutritionally equivalent to fresh fruits in smaller serving sizes,
ranging from 30 to 43 g depending on the fruit, in current dietary recommendation in dif-
ferent countries. Daily consumption of dried fruits is recommended in order to gain full
benefit of essential nutrients, health-promoting phytochemicals, and antioxidants that they
contain, together with their desirable taste and aroma. Recently, much interest in the health
benefits of dried fruits has led to many in vitro and in vivo (animal and human interven-
tion) studies as well as the identification and quantification of various groups of
phytochemicals. This review discusses phytochemical compositions, antioxidant effica-
cies, and potential health benefits of eight traditional dried fruits such as apples, apricots,
dates, figs, peaches, pears, prunes, and raisins, together with dried cranberries. Novel product
formulations and future perspectives of dried fruits are also discussed. Research findings
from the existing literature published within the last 10 years have been compiled and
summarised.
© 2015 Elsevier Ltd. All rights reserved.
Keywords:
Dried fruits
Phytochemicals
Phenolic compounds
Antioxidant activity
Health benefits
Contents
1. Introduction ...................................................................................................................................................................................... 114
2. Phytochemicals and antioxidant efficacies of dried fruits ........................................................................................................ 114
2.1. Total phenolics ...................................................................................................................................................................... 115
2.2. Flavonoids .............................................................................................................................................................................. 115
2.3. Phenolic acids ........................................................................................................................................................................ 118
2.4. Phytoestrogens ...................................................................................................................................................................... 119
2.5. Carotenoids ............................................................................................................................................................................ 120
2.6. Antioxidant efficacies of dried fruits ................................................................................................................................. 120
2.7. Bioaccessibility of bioactive compounds from dried fruits ............................................................................................ 121
3. Beneficial health effects of dried fruits ........................................................................................................................................ 122
3.1. Improved diet quality and overall health ......................................................................................................................... 122
3.2. Anti-glaucoma effect ............................................................................................................................................................ 125
* Corresponding author. TÜBI
˙TAK Marmara Research Center, Food Institute, P.O. Box 21, 41470 Gebze-Kocaelі, Turkey. Tel.: +90 262 677
3200; fax: +90 262 641 2309.
E-mail address: cesarettin.alasalvar@tubitak.gov.tr (C. Alasalvar).
http://dx.doi.org/10.1016/j.jff.2015.11.034
1756-4646/© 2015 Elsevier Ltd. All rights reserved.
Journal of Functional Foods 21 (2016) 113–132
Available online at www.sciencedirect.com
journal homepage: www.elsevier.com/locate/jff
ScienceDirec
t
3.3. Anticancer effect ................................................................................................................................................................... 125
3.4. Lipid-lowering effect ............................................................................................................................................................. 125
3.5. Antioxidative and anti-inflammation effects ................................................................................................................... 125
3.6. Antibiotic/anti-pathogenic effect ....................................................................................................................................... 125
3.7. Cardioprotection effect ......................................................................................................................................................... 126
3.8. Bone protection ..................................................................................................................................................................... 126
3.9. Anti-diabetic/hypoglycaemic effect .................................................................................................................................... 126
4. Novel product formulations and future perspectives ................................................................................................................ 126
5. Conclusion ........................................................................................................................................................................................ 127
References ......................................................................................................................................................................................... 127
1. Introduction
Nutrition plays a major role in the primary and secondary pre-
vention of non-communicable diseases (NCDs). Consumption
of fruits and vegetables is one of the essential nutritional rec-
ommendations to prevent NCDs. Numerous studies have
demonstrated that the intake of 3–5 daily servings of fruits and
vegetables would protect against NCDs (He, Nowson, Lucas, &
MacGregor, 2007; Lichtenstein et al., 2006; Slavin & Lloyd, 2012).
The 2010 Dietary Guidelines for Americans also recommended
to make one half of food plates with fruits and vegetables (US
Department of Health and Human Services, 2010). Fruits con-
stitute a major part of the human diet. Besides, fruits may be
consumed as a part of religious practices and as nutritional
therapy in different human traditions around the world (Slavin
& Lloyd, 2012; Vayalil, 2012). Studies indicate that the role of
fruits together with their nutrients in the prevention of NCDs
could be stronger than vegetables (Habauzit & Morand, 2012).
This happens because fruits provide essential vitamins, min-
erals, as well as various phytochemicals that confer significant
health benefits other than basic nutrition (Slavin & Lloyd, 2012;
US Department of Health and Human Services, 2010).
Most of the common fruits are produced on a seasonal basis
and hence may not be available in fresh conditions through-
out the year. Thus, fresh fruits are processed by various
techniques to become dried fruits to prolong their shelf life. Dried
fruits are a concentrated form of fresh fruits, albeit with lower
moisture content than that of their fresh counterparts since a
large proportion of their moisture content has been removed
through sun-drying or various modern drying techniques, such
as mechanical devices (Alasalvar & Shahidi, 2013a, 2013b). Fruits
can be dried whole (e.g., grapes, berries, apricots, and plums),
in halves, or as slices (e.g., mangoes, papayas, and kiwis). Dried
fruits are important healthy snacks worldwide. They also have
the advantage of being easy to store and distribute, available
throughout the year,and healthier alternative to salty or sugary
snacks. Apples, apricots, dates, figs, peaches, pears, prunes, and
raisins are referred to as ‘’conventional’’ or ‘’traditional’’ dried
fruits. Meanwhile, some fruits, such as blueberries, cranber-
ries, cherries, strawberries, and mangoes are usually infused with
sugar solutions or fruit juice concentrate before drying (Alasalvar
& Shahidi, 2013a, 2013b).
In terms of production, raisins and currants rank first ac-
cording to 2014 statistics on global production of commercially
important dried fruits with a production of 1,394,566 metric
tonnes (MT), followed by dates (756,000 MT), prunes (216,853
MT), cranberries (152,000 MT), figs (135,744 MT), and apricots
(88,129 MT). However, statistics on the production of other dried
fruits, such as berries, citrus fruits, and cherries are generally
scarce (INC, 2014).
Although raisins, figs, dates, prunes, and apricots are the
most common dried fruits in the marketplace, food stores and
local markets offer many more choices such as dried apples,
pineapples, berries, mangoes, and papayas, among others. They
are rich sources of essential nutrients and health-promoting
bioactive compounds. Epidemiological evidence have demon-
strated an association between dried fruit consumption and
diet quality (Coleman et al., 2008; Keast, O’Neil, & Jones, 2011).
Raisins are the most studied among all dried fruits, followed
by dates, prunes, figs, apricots, peaches, apples, pears, and other
fruits (Alasalvar & Shahidi, 2013a, 2013b). This review dis-
cusses the phytochemical compositions, antioxidant efficacies,
and potential health-promoting properties of traditional dried
fruits as well as cranberries. The potential of several non-
tropical dried fruits (apples, apricots, figs, peaches, pears, prunes,
and raisins) and a selected tropical dried fruit, dates, as func-
tional or healthy foods have been highlighted. This review is
intended to stimulate large-scale commercial exploitation and
generate interest among researchers in various scientific fields
to study dried fruits as functional foods.
2. Phytochemicals and antioxidant efficacies
of dried fruits
Phytochemicals are non-nutritive, naturally occurring, and bio-
logically active compounds found in the plant kingdom.
However, a large percentage of phytochemicals is still unknown
and remains to be identified by the scientific community
(Quideau, Deffieux, Douat-Casassus, & Pouységu, 2011;
Tomás-Barberán & Andrés-Lacueva, 2012). Non-specific methods
such as determination of total phenolics and anthocyanins by
pH differential, and specific methods such as high perfor-
mance liquid chromatography (HPLC), ultraviolet-visible
spectroscopy (UV-VIS), and mass spectrometry (MS) have been
used to characterise phytochemicals in dried fruits (Alasalvar
& Shahidi, 2013a, 2013b; Vayalil, 2012). Dried fruits provide a
wide range of phytochemicals, such as phenolic acids,
flavonoids, phytoestrogens, and carotenoids (Alasalvar &
Shahidi, 2013a, 2013b). There are a number of review articles
114 Journal of Functional Foods 21 (2016) 113–132
reporting the nutritional and functional properties as well as
phytochemicals (carotenoids, phytosterols, polyphenols, phe-
nolic acids, flavonoids, anthocyanins, and phytoestrogen) of
dates (Al-Farsi & Lee, 2008; Vayalil, 2012). Williamson and
Carughi (2010) reviewed the polyphenols and health benefits
of raisins. However, literature on phenolic acid, flavonoid,
phytoestrogen, and carotenoid profiles of other dried fruits are
still scarce. The reported phytochemicals in dried fruits and
their corresponding antioxidant activities vary considerably ac-
cording to the cultivars as well as climatic and agricultural
practices (Alasalvar & Shahidi, 2013a, 2013b; Al-Farsi & Lee, 2008;
Pellegrini et al., 2006; Vayalil, 2012; Wu et al., 2004).
2.1. Total phenolics
Folin–Ciocalteu reagent assay is the common method used to
determine the total phenolic content (TPC) of dried fruits. TPCs
of dried fruits, expressed as mg of ascorbic acid equivalents
(AAE)/100 g dry weight (DW), were reported by Ishiwata,
Yamaguchi, Takamura, and Matoba (2004) with a range of 916–
2414. Raisins contained the highest TPC (2414 mg AAE/100 g),
followed by dried apricots, cranberries, peaches, figs, pears, and
prunes (Table 1). In another study conducted by Wu et al. (2004),
TPC [expressed as mg of gallic acid equivalents (GAE)/g] of dried
fruits decreased in the order of prunes >raisins >figs >dates.
However, in another study (Vinson, Zubik, Bose, Samman, &
Proch, 2005), dates demonstrated the highestTPC [1959 mg cat-
echin equivalents (CE)/100 g fresh weight (FW)], while figs had
the lowest TPC (320 mg CE/100 g FW) among six dried fruits
(apricots, cranberries, dates, figs, plums, and raisins) studied.
A recent study reported the TPC of two Turkish dried fig vari-
eties of Sarılop and Bursa Siyahı to be 193 and 417 mg GAE/
100 g DW, respectively (Kamiloglu & Capanoglu, 2015).
2.2. Flavonoids
The major flavonoids reported in dried fruits are antho-
cyanidins, dihydrochalcones, flavonols, flavones, and flavan-
3-ols. The reported flavonoid contents in selected dried fruits
aregiveninTable 2. Apricots contain all the above-mentioned
classes of flavonoids (Erdog˘an & Erdemog˘lu, 2011; Schmitzer
et al., 2011). The chemical structures of the representative fla-
vonoids reported in dried fruits are shown in Fig. 1. Dried fruits
contain undetectable amounts of anthocyanins, which are likely
degraded to phenolic acids. Dates contain one anthocyanidin
(cyanidin) and one flavonol (quercetin) (Harnly et al., 2006). No
anthocyanins have been detected in dried pears (Ferreira et al.,
2002) and raisins (Chiou et al., 2007; Meng et al., 2011;
Williamson & Carughi, 2010). However, a number of anthocy-
anin (delphinidin-3-glucoside, cyanidin-3-glucoside, petunidin-
3-glucoside, pelargonidin-3-glucoside, peonidin-3-glucoside, and
malvidin-3-glucoside) and anthocyanin-derived compounds
(vitisin A, acetylvitisin A, B-type vitisin of malvidin-3-glucoside,
peonidin-3-glucoside, peonidin-3-acetylglucoside, A-type vitisin
of malvidin-3-acetylglucoside, and malvidin-3-acetylglucoside)
have been detected in raisins from Spanish Merlot and Syrah
varieties (Table 2)(Marquez, Dueñas, Serratosa, & Merida, 2012).
These anthocyanin-derived compounds resulted from the cy-
cloaddition of pyruvic acid (A-type vitisin) and acetaldehyde
(B-type vitisin) to anthocyanin molecules due to enzymatic
transformations (Marquez et al., 2012). Dihydrochalcones, such
as phloridzin and phloretin, are reported only in dried apples
and apricots (Erdog˘ an & Erdemog˘ lu, 2011; Joshi, Rupasinghe,
& Khanizadeh, 2011). Rutin is the predominant flavonol in
prunes (Donovan, Meyer, & Waterhouse, 1998). Dried fruits also
contain traces of proanthocyanidins (USDA, 2004; Vallejo, Marín,
& Tomás-Barberán, 2012). Proanthocyanidins are detected in
plums and grapes, but not in prunes and raisins, suggesting
that these compounds are degraded during the drying process
(Franke, Custer, Arakaki, & Murphy, 2004; Harnly et al., 2006).
Flavonols have been reported in all selected dried fruits,
except dried pears and peaches (Ferreira et al., 2002; Rababah,
Ereifej, & Howard, 2005; Silva, Shahidi, & Coimbra, 2013;
Villarino, Sandín-España, Melgarejo, & De Cal, 2011). In another
study conducted by Vallejo et al. (2012), four flavonols
(kaempferol rutinoside, quercetin-acetylglucoside, quercetin-
rutinoside, and quercetin-glucoside) were reported in three dried
fig cultivars, among which quercetin-rutinoside was the major
Table1–Phytochemicals in selected dried fruits.
Dried fruit Total phenolicsaFlavonoidsbFlavonolsbPhytoestrogenscIsoflavonescTotal lignanscCarotenoidsd
Apples 916 nr nr nr nr nr nr
Apricots 2256 56.8fnr 445 39.8 401 2.2
Cranberries 1819 7.66 4.50 nr nr nr nr
Dates 661e2.63 0.93 330 5.1 324 0.97
Figs 1234 105fnr nr nr nr 0.032
Peaches 1260 nr nr nr nr nr 2.08
Pears 1196 nr nr nr nr nr nr
Prunes 1032 2.58 1.80 184 4.2 178 0.69
Raisins 2414 0.85 0.26 30.2 8.1 22.0 nd
aData are expressed as mg of AAE/100 g DW and obtained from Ishiwata et al. (2004).
bData are expressed as mg/100 g edible portion and obtained from Bhagwat, Haytowitz, and Holden (2014).
cData are expressed as µg/100 g edible portion and obtained from Thompson et al. (2006).
dData are expressed as mg/100 g FW and obtained from Al-Farsi and Lee (2008).
eData are expressed as mg of GAE/100 g and obtained from Wu et al. (2004).
fData are expressed as mg of QE/100 g and obtained from Ouchemoukh, Hachoud, Boudraham, Mokrani, and Louaileche (2012).
AAE, ascorbic acid equivalents; DW, dry weight; FW, fresh weight; GAE, gallic acid equivalents; nd, not detected; nr, not reported; QE, quercetin
equivalents.
115Journal of Functional Foods 21 (2016) 113–132
Table 2 – Comparison of phenolic compounds in selected dried fruits.
Dried fruit Types of phenolic compounds Unit Content References
Apples Dihydrochalcones Phloridzin
Phloretin
mg/100 g DW 35.44
0.32
Joshi et al. (2011)
Flavan-3-ols Catechin
Epicatechin
mg/100 g DW 0.26
3.11
Joshi et al. (2011)
Flavonols Cyanidin-3-O-galactoside
Quercetin-3-O-rutinoside
Quercetin-3-O-galactoside
Quercetin-3-O-glucoside
Quercetin-3-O-rhamnoside
mg/100 g DW 2.97
1.71
10.49
5.93
9.21
Joshi et al. (2011)
Phenolic acids Chlorogenic acid mg/100 g DW 139 Joshi et al. (2011)
Flavonols Quercetin-3-O-galactoside
Quercetin-3-O-glucoside
Quercetin-3-O-xyloside
Quercetin-3-O-arabinoside
Quercetin-3-O-rhamnoside
Quercetin
% of total quercetin
derivatives
36.2
12.2
6.7
25.9
14.1
4.9
Schulze, Hubbermann, and
Schwarz (2014)
Apricots Flavan-3-olsaCatechin
Epicatechin
mg/kg DW 47.3
21.5
Madrau et al. (2009)
FlavonolsaQuercetin-3-O-glucoside
Rutin
mg/kg DW 8.14
34.6
Madrau et al. (2009)
Phenolic acidsaChlorogenic acid
Neochlorogenic acid
mg/kg DW 365
221
Madrau et al. (2009)
DihydrochalconesbPhloridzin mg/kg DW 0.17 Erdog˘an and Erdemog˘lu
(2011)
Flavan-3-olsbCatechin
Epicatechin
Epicatechin gallate
Epigallocatechin
Epigallocatechin gallate
Gallocatechin
Procyanidin B2
mg/kg DW 3.9
20.96
13.26
8.19
8.21
2955
5.19
Erdog˘an and Erdemog˘lu
(2011)
FlavonolsbMyricetin
Quercetin
Rutin
mg/kg DW 1.29
0.29
75.01
Erdog˘an and Erdemog˘lu
(2011)
FlavonebLuteolin mg/kg DW 0.43 Erdog˘ an and Erdemog˘lu
(2011)
Cranberries Flavan-3-ols Catechin
Epicatechin
Epigallocatechin gallate
mg/100 g FW 0.8
4.5
1.9
Harnly et al. (2006)
Flavonols Myricetin
Quercetin
mg/100 g FW 16.6
19.4
Harnly et al. (2006)
Phenolic acids Caffeic acid
Chlorogenic acid
Ferulic acid
Gallic acid
p-Coumaric acid
Protocatechuic acid
3-Hydroxybenzoic acid
3-Hydroxyphenylpropionic acid
4-Hydroxybenzoic acid
4-Hydroxyphenylacetic
mg/100 g FW 2.31
10.3
2.96
14.5
25.2
51.2
1.9
1.53
3.42
3.21
Palikova et al. (2010); Prior
et al. (2010)
Dates Anthocyanins Cyanidin mg/100 g FW 1.7 Harnly et al. (2006)
Flavonols Quercetin mg/100 g FW 0.9 Harnly et al. (2006)
Phenolic acidscCaffeic acid
Ferulic acid
Gallic acid
o-Coumaric acid
p-Coumaric acid
Protocatechuic acid
Syringic acid
Vanillic acid
mg/100 g FW 2.52
11.83
1.56
2.88
5.77
4.94
2.89
2.26
Al-Farsi et al. (2005)
(continued on next page)
116 Journal of Functional Foods 21 (2016) 113–132
Table 2 – (continued)
Dried fruit Types of phenolic compounds Unit Content References
Figs Flavan-3-olsdCatechin
Epicatechin
mg/100 g FW 1.5–8.67
0.6–21.83
Slatnar, Klancar, Stampar,
and Veberic (2011)
FlavonolsdKaempferol-3-O-glucoside
Kaempferol-rutinosidee,f
Luteolin-8-C-glucosidee
Quercetin-acetylglucosidee
Quercetin-rutinosidee
Quercetin-3-O-glucosidee
Quercetin-3-glucosidef
Quercetin-glucosidee
Rutine,f
mg/100 g FW 0.39
0.2–2.0
0.14
2.6
10.2
2.87
0.2–0.7
2.5
9.0–15
Slatnar et al. (2011)
Anthocyanins Cyanidin-3-O-rutinosidee
Cyanidin-3-glucosidef
Cyanidin-3-rutinosidef
mg/100 g FW 0.19
0.1
1.5
Vallejo et al. (2012)
Phenolic acidsgChlorogenic acidg
Ellagic acidg
Ferulic acidg
Gallic acidg
p-Coumaric acidf,g
Protocatechuic acidg
Syringic acidg
Vanillic acidg
mg/100 g FW 0.8–3.0
0.2
7.19
0.1
1.1–9.89
1.96
1.44
33.35
Aegean Exporter’s
Associations (2009)
Peaches Anthocyanins Cyanidin-3-glucoside mg/100 g FW 5.1 Rababah et al. (2005)
Phenolic acids Chlorogenic acid
Neochlorogenic acid
mg/kg FW 151
85.27
Villarino et al. (2011)
Pears Flavan-3-ols Catechin
Epicatechin
mg/g DW 2.6
15.2
Ferreira et al. (2002)
Procyanidins Arbutin
Caffeoylquinic acid
p-Coumarylmallic acid
mg/g DW 7.5
6.1
0.7
Ferreira et al. (2002)
Prunes Flavan-3-ols Epicatechin mg/kg DW 7.2 Kayano et al. (2002)
Flavonols Cyanidin 3-rutinoside
Rutin
mg/kg DW 15
3–89
Del Caro, Piga, Pinna, Fenu,
and Agabbio (2004);
Donovan et al. (1998)
Phenolic acids Caffeic acid
Chlorogenic acid
Neochlorogenic acid
p-Coumaric acid
Protocatechuic acid
mg/kg DW 1–35h
67–562h
928–3045h
2–43h
0.5–2.0h
Del Caro et al. (2004);
Donovan et al. (1998);
Kayano et al. (2004);
Kayano et al. (2002)
Raisins AnthocyaninsiCyanidin-3-glucoside mg/L 1.16–1.56 Marquez et al. (2012)
Delphinidin-3-glucoside 1.45–1.75
Malvidin-3-glucoside 47.2–74.1
Pelargonidin-3-glucoside 0.87–1.04
Peonidin-3-glucoside 20.0–22.7
Petunidin-3-glucoside 9.34–11.4
A-type vitisin of malvidin-3-acetylglucoside 0.44–0.53
B-type vitisin of peonidin-3-glucoside 0.38–0.75
Vitisin A 0.11–0.12
Vitisin B 0.76–0.84
Cyanidin-3-acetylglucoside 0.67–0.98
Delphinidin-3-acetylglucoside 0.39–0.40
Malvidin-3-acetylglucoside 14.3–16.7
Malvidin-3-caffeoylglucoside 1.56–1.73
Peonidin-3-acetylglucoside 3.81–5.57
Petunidin-3-acetylglucoside 5.17–6.33
Petunidin-3-caffeoylglucoside 2.86–2.95
Petunidin-3-coumaroylglucoside 2.36–2.54
FlavonolsjIsorhametin 3-O-glucoside
Kaempferolk
Quercetin-3-O-rutinoside
Quercetin-3-O-glucuronide
Quercetin-3-O-glucoside
Quercetin
mg/100 g FW 1.25
0.06k
0.71
0.06
2.1
0.29
Williamson and Carughi
(2010)
(continued on next page)
117Journal of Functional Foods 21 (2016) 113–132
one. In a recent study, the total flavonoids, total
proanthocyanidins, and total anthocyanin contents of dried figs
from Sarılop and Bursa Siyahı varieties were 14–52 mg GAE/
100 g DW, 12–16 mg cyanidin equivalents (CE)/100 g DW, and
0.1–14.5 mg cyanidin-3-glycoside equivalents (C3GE)/100 g DW,
respectively (Kamiloglu & Capanoglu, 2015). Specifically,
rutin and cyanidin-3-rutinoside were the major flavonol and
anthocyanin in both Turkish dried figs varieties. Anthocyan-
ins, such as cyanidin-3-glucoside and cyanidin-3-rutinoside,
were reported in Turkish dried figs (Kamiloglu & Capanoglu,
2015), but these anthocyanins were not found in Spanish dried
figs (Vallejo et al., 2012). Flavones, such as luteolin, were re-
ported only in dried apricots (Erdog˘ an & Erdemog˘lu, 2011), while
apigenin was detected in dried figs (Kamiloglu & Capanoglu,
2015).
2.3. Phenolic acids
The reported phenolic acids determined in selected dried fruits
aregiveninTable 2, while the structures of the representa-
tive phenolic acids in selected dried fruits are shown in Fig. 1.
Phenolic acids such as hydroxycinnamic and hydroxybenzoic
acids have been reported in selected dried fruits, except in dried
pears (Ferreira et al., 2002; Silva, Shahidi, & Coimbra, 2013). In
raisins, the most abundant phenolic acids are caftaric and
coumaric acids (Williamson & Carughi, 2010). In addition, Cali-
fornian and Chinese raisins have been reported to contain gallic,
vanillic, syringic, ferulic, chlorogenic, 3,4-dihydroxybenzoic, cin-
namic, protocatechuic, and phloretic acids (Meng et al., 2011;
Parker, Wang, Pazmiño, & Engeseth, 2007; Williamson & Carughi,
2010; Zhao & Hall, 2008). However, Greek raisins contained va-
nillic, caffeic, gallic, syringic, p-coumaric, and protocatechuic
acids (Chiou et al., 2007). Raisins of nine grape genotypes from
Xinjiang Province of China were studied by Meng et al. (2011),
where 3,4-dihydroxybenzoic acid was the most predominant
phenolic acid in a majority of raisin samples. Besides, sali-
cylic acid was found in raisins from nine Chinese varieties
(Meng et al., 2011), which was different from that reported by
Williamson and Carughi (2010), Zhao and Hall (2008), and Parker
et al. (2007).
Four free phenolic acids (protocatechuic, vanillic, syringic,
and ferulic) and nine bound phenolic acids [five of which are
hydroxylated derivatives of benzoic acid (e.g., gallic, protocat-
echuic, p-hydroxybenzoic, vanillic, and syringic acids) and four
of which are cinnamic acid derivatives (e.g., caffeic, p-coumaric,
ferulic, and o-coumaric acids)] have been reported in fresh and
sun-dried Omani dates of three native varieties (Al-Farsi,
Alasalvar, Morris, Baron, & Shahidi, 2005). Meanwhile, seven
Table 2 – (continued)
Dried fruit Types of phenolic compounds Unit Content References
Phenolic acids Caffeic acid
Cinnamic acid
Ferulic acid
Gallic acid
p-Coumaric acid
p-Hydroxybenzoic acid
p-Hydroxyphenylacetic acid
Protocatechuic acid
Syringic acid
Vanillic acid
3,4-Dihydroxyphenylacetic
acid
mg/100 g FW 0.63
0.16
0.32
0.69
0.36
0.23
0.12
0.44
0.34
1.21
0.1
Chiou et al. (2007)
FlavonolslQuercetin
Rutin
µg/g DW 253
44.76
Meng et al. (2011)
Phenolic acidslGallic acid
Ferulic acid
p-Coumaric acid
Salicylic acid
Syringic acid
3,4-Dihydroxybenzoic acid
µg/g DW 1.59
17.37
8.6
61.23
17.87
510.94
Meng et al. (2011)
aCafona variety from Italy where data are obtained from Madrau et al. (2009).
bUnknown from Turkey where data are obtained from Erdog˘ an and Erdemog˘lu (2011).
cThree varieties from Oman where data are obtained from Al-Farsi et al. (2005).
dUnknown from Spain where data are obtained from Slatnar et al. (2011).
eAutumn free cultivar from Spain where data are obtained from Vallejo et al. (2012).
fSarılop and Bursa Siyahı varieties of yellow and purple figs from Turkey where data are obtained from Kamiloglu and Capanoglu (2015).
gUnknown from Turkey where data are obtained from Aegean Exporter’s Associations (2009).
hRange (minimum – maximum) where data are obtained from Del Caro et al. (2004); Donovan et al. (1998); Kayano et al. (2002); Kayano et al.
(2004).
iMerlot and Syrah varieties from Spain where data are obtained from Marquez et al. (2012).
jCalifornia variety where data are obtained from Williamson and Carughi (2010).
kData are obtained from Chiou et al. (2007).
lChinese Thompson seedless where data are obtained from Meng et al. (2011).
DW, dry weight; FW, fresh weight.
118 Journal of Functional Foods 21 (2016) 113–132
phenolic acids (free and bound), four of which being hydrox-
ylated benzoic acid derivatives (gallic, protocatechuic, syringic,
and vanillic acids) and three being cinnamic acid derivatives
(chlorogenic, ferulic, and p-coumaric acids), have been iden-
tified in Turkish dried figs. Bound phenolics were most abundant
in dried figs where their amounts were much higher than those
of free phenolics (Aegean Exporter’s Associations, 2009;
Al-Farsi et al., 2005). However, Vallejo et al. (2012) found only
one phenolic acid (chlorogenic acid) in Spanish dried fig cul-
tivars at 1.4–2.0 mg/100 g edible portion.
Prunes are unique in their combination and overall content
of polyphenols (Neveu et al., 2010; Vrhovsek, Rigo, Tonon, &
Mattivi, 2004) and are rich in hydroxycinnamic acids, such as
neochlorogenic, cryptochlorogenic, and chlorogenic acids (Neveu
et al., 2010;Piga, Del Caro, & Corda, 2003). Prunes also contain
quinic acid that is metabolised to hippuric acid, which may
help alleviate urinary tract infection (Fang, Yu, & Prior, 2002;
Kayano, Kikuzaki, Fukutsuka, Mitani, & Nakatani, 2002). Another
study reported the presence of different caffeoylquinic acid
isomers in prunes (Kayano et al., 2004). Rutin and chloro-
genic acid have also been identified as the main phenolic
compounds responsible for the in vitro anti-cancer (lung, breast,
liver, and colon) activities of prunes, as recently shown by Li
et al. (2013).
2.4. Phytoestrogens
Dietary phytoestrogens present in dried fruits have attracted
much interest due to their potential protective effects against
various disease conditions such as cancer, cardiovascular
disease (CVD), osteoporosis, and menopausal symptoms
(Bradford & Awad, 2007; John, Sorokin, & Thompson, 2007).They
comprise three major classes: isoflavones, lignans, and
coumestan (John et al., 2007). Some dried fruits, such as apri-
cots, currants, dates, prunes, and raisins, contain phytoestrogens
[e.g., isoflavones (formononetin, daidzein, genistein, and
glycitein), lignans (e.g., matairesinol, lariresinol, pinoresinol,
and secoisolariciresinol), and coumestan (coumestrol)]. The
structures of the representative phytoestrogens of dried fruits
are shown in Fig. 2.
Apricots contain the highest amount of phytoestrogens
(445 µg/100 g) among dried fruits, followed by dates (330 µg/
100 g), prunes (184 µg/100 g), and raisins (30.2 µg/100 g) (Table 1)
(Thompson, Boucher, Liu, Cotterchio, & Kreiger, 2006). Dried
fruits contain a higher concentration of lignans (ranging from
22.0 to 401 µg/100 g) than isoflavones (ranging from 4.2 to
39.8 µg/100 g) (Table 1). Coumestan, expressed as coumestrol,
is generally present in low amounts in dried fruits (Thompson
et al., 2006). Dried apricots contain daidzein, genistein, and
Fig. 1 – Chemical structures of representative phenolic compounds (phenolic acids, flavonols, and anthocyanidins) reported
in dried fruits.
119Journal of Functional Foods 21 (2016) 113–132
biochanin A in trace amounts (Kuhnle et al., 2009; Liggins et al.,
2000). Meanwhile, dried figs contain a relatively low amount
of isoflavones (5.97 µg/100 g) compared to other dried fruits,
except dried apricots (4.27 µg/100 g) (Liggins et al., 2000).
However, detailed quantitative analysis on different classes of
phytoestrogens in different forms and varieties of other dried
fruits remains unexplored.Thus, more research should be con-
ducted to fill this knowledge gap.
2.5. Carotenoids
Five carotenoids, namely, α-carotene, β-carotene,
β-cryptoxanthin, lutein, and zeaxanthin, have been reported
in some dried fruits. Of these, β-carotene, which acts as pro-
vitamin A, is most abundant in dried apricots (2163 µg/100 g),
followed by peaches (1074 µg/100 g), and prunes (394 µg/
100 g). Lutein +zeaxanthin (559 µg/100 g) and β-cryptoxanthin
(444 µg/100 g) are detected only in dried peaches. Dates are the
third richest source of carotenoids after dried apricots and
peaches (Table 1)(Al-Farsi & Lee, 2008; USDA, 2014). Dates can
be considered a moderate source of carotenoids (Vayalil, 2012).
No carotenoids have been reported in raisins, while small or
trace amounts of carotenoids have been found in dried apples,
figs, pears, and prunes (Al-Farsi & Lee, 2008; Delgado-Pelayo,
Gallardo-Guerrero, & Hornero-Méndez, 2014; USDA, 2014).The
low level of carotenoids in dried fruits may be due to the drying
process since carotenoids are sensitive to heat (Namitha & Negi,
2010; Rawson et al., 2011). However, USDA (2014) Nutrient Da-
tabase reported that drying significantly increased carotenoids
concentration (β-carotene, β-cryptoxanthin,and lutein) in dried
peaches compared to its fresh counterpart.This happens because
of the removal of water that concentrates the phytochemicals.
2.6. Antioxidant efficacies of dried fruits
A number of methods have been used to determine the anti-
oxidant activity of selected dried fruits. These include ferric
reducing antioxidant power (FRAP), oxygen radical absor-
bance capacity (ORAC), 2,2′-azino-bis(3-ethylbenzothiazoline-
6-sulphonic acid) (ABTS), cupric ion reducing antioxidant
capacity (CUPRAC), and 2,2-diphenyl-1-picrylhydrazyl (DPPH)
radical scavenging activity. Dried fruits are rich sources of
antioxidant polyphenols. The ORAC values for selected dried
fruits are given in Table 3. Raisins (golden seedless) have the
highest ORAC value [10,450 µmol trolox equivalents (TE)/
100 g], followed by dried pears, prunes, apples, peaches, figs,
and apricots. Interestingly, dates have the lowest ORAC
(2387 µmol TE/100 g) andTPC (661 mg GAE/100 g) among nine
tested dried fruits (USDA, 2010; Wu et al., 2004). The DPPH
radical scavenging activity and theTPC of selected dried fruits
(apples, apricots, cranberries, figs, raisins, peaches, pears, and
prunes) have been determined by Ishiwata et al. (2004) (Tables 1
and 3). Apricots contained the highest DPPH radical scaveng-
ing activity, followed by prunes and cranberries (Table 3). The
TPC of dried fruits were highly correlated with DPPH radical-
scavenging activity (Ishiwata et al., 2004). Pellegrini et al.
(2006) determined the total antioxidant activity (using three
different in vitro assays) of some dried fruits (apricots, figs,
prunes, and raisins) in which prunes had the highest value
followed by apricots. However, limited information is avail-
able on the phenolic profiles and antioxidant components of
other dried fruits in the study conducted by Pellegrini et al.
(2006).
Various studies have reported the bioactive compounds and
corresponding antioxidant activities of dried fruits (e.g., peaches
and dates) which are always higher than those of their corre-
sponding fresh counterparts (Ishiwata et al., 2004; Rababah et al.,
2005; Threlfall, Morris, & Meullenet, 2007; Vinson et al., 2005).
This is because antioxidants are concentrated after the dehy-
dration process. Even though there is a loss or change of some
phytochemicals during drying, antioxidant activity and TPC of
dried fruits remain relatively unaffected during the process,
but many of the phenolic compounds remain to be identified
(Madrau, Sanguinetti, Del Caro, Fadda, & Piga, 2010).
Fig. 2 – Chemical structures of representative phytoestrogens reported in dried fruits.
120 Journal of Functional Foods 21 (2016) 113–132
The lipophilic and hydrophilic ORAC (L-ORAC and H-ORAC)
values for dates, figs, prunes,and raisins are shown in Table 3.
For those dried fruits, the hydrophilic antioxidants contrib-
uted more than 94% to the total antioxidant activity (Wu et al.,
2004). Recently, the antioxidant activities ofTurkish dried apri-
cots, figs, and raisins have been determined using ABTS,
CUPRAC, DPPH,and FRAP assays.The antioxidant activities were
in the descending order of raisins >apricots >figs (Table 4)
(Kamiloglu, Pasli, Ozcelik, & Capanoglu, 2014). Meanwhile, the
quality of antioxidants reported as IC50 [expressed in the con-
centration needed to inhibit in vitro oxidation of low-density
lipoprotein (LDL) particles by 50%] in dried cranberries, raisins,
and prunes were 2.38, 3.45, and 4.38, respectively (Vinson et al.,
2005). Antioxidants of dried figs have been reported to protect
plasma lipoproteins from subsequent oxidation. In addition,
these antioxidants increased the plasma antioxidant capac-
ity up to 4 h after consumption, alleviating the oxidative stress
induced after consumption of high fructose corn syrup in a
carbonated soft drink (Vinson et al., 2005).
2.7. Bioaccessibility of bioactive compounds from dried
fruits
Dried fruits are popular due to their high nutrient and phar-
maceutical values (Alasalvar & Shahidi, 2013a, 2013b). However,
limited information is available on the absorption, distribu-
tion, metabolism, and excretion of their bioactive compounds
in humans, especially about the bioaccessibility and bio-
availability of antioxidant polyphenols from dried fruits.
Kamiloglu and Capanoglu (2013) have evaluated the total an-
tioxidant activity, total proanthocyanidins, and major phenolic
compounds of Turkish dried fig varieties at different phases
of simulated gastrointestinal (GI) tract digestion [(after gastric
digestion (PG), dialysed fraction after intestinal digestion (IN),
and non-dialysed fraction after intestinal digestion (OUT)] using
an in vitro model. The dialysed fraction after intestinal diges-
tion represents serum bioavailability of dried fruits (Kamiloglu
Table 3 – Antioxidant activities of selected dried fruits.
Dried fruit DPPH
(mg AAE/100 g DW)a
ORAC
(µmol TE/100 g)b
TAC
(µmol TE/g)c
L-ORACFL
(µmol TE/g)c
H-ORACFL
(µmol TE/g)c
FRAP
(mmol Fe2+E/kg)d
Apples 875 6681 nr nr nr nr
Apricots 3846 3234 nr nr nr 36.64
Cranberries 3079 nr nr nr nr nr
Dates nr 2387 23.87 0.27 23.6 nr
Figs 1087 3383 33.83 1.83 32.0 14.43
Peaches 1442 4222 67.6fnr nr nr
Pears 1301 9496 nr nr nr nr
Prunes 3112 8578 85.78 1.79 83.99 60.54
Raisins 1346 10450e30.37 0.35 30.02 23.26
aData are obtained from Ishiwata et al. (2004).
bData are obtained from USDA (2010).
cData are obtained from Wu et al. (2004).
dData are obtained from Pellegrini et al. (2006).
eGolden seedless raisins.
fData are obtained from Rababah et al. (2005).
AAE, ascorbic acid equivalents; DPPH, 2,2-diphenyl-1-picrylhydrazyl; DW, dry weight; Fe2+E, Fe2+equivalents; FRAP, ferric-reducing antioxidant
power; H-ORACFL, hydrophilic-oxygen radical absorbance capacity; L-ORACFL, lipophilic-oxygen radical absorbance capacity; nr, not reported;
ORAC, oxygen radical absorbance capacity; TAC, total antioxidant capacity; TE, trolox equivalents.
Table 4 – Changes in TPC and antioxidant activities of
selected dried fruits during different stages of in vitro
gastrointestinal digestion.a
Dried fruits Unit Apricots Figs Raisins
TPC (mg GAE/100 g)
Initial
PG
IN
OUT
211 ±9.4
694 ±50
133 ±8.9
619 ±15
123 ±7.8
575 ±56
85 ±8.8
369 ±45
1322 ±59
1294 ±95
104 ±4.4
1355 ±129
ABTS (mg TE/100 g)
Initial
PG
IN
OUT
238 ±4.4
291 ±34
77 ±4.3
380 ±13
163 ±14
280 ±9.0
68 ±5.3
340 ±64
2262 ±186
887 ±119
79 ±2.0
1071 ±189
DPPH (mg TE/100 g)
Initial
PG
IN
OUT
82 ±3.8
281 ±48
33 ±2.4
123 ±10
44 ±4.4
247 ±25
14 ±1.7
81 ±18
1204 ±70
1818 ±50
54 ±2.5
2132 ±314
CUPRAC (mg TE/100 g)
Initial
PG
IN
OUT
374 ±71
627 ±48
183 ±35
680 ±67
152 ±19
486 ±42
124 ±13
404 ±70
2351 ±58
2274 ±242
214 ±7.8
2723 ±243
FRAP (mg TE/100 g)
Initial
PG
IN
OUT
108 ±9.7
218 ±50
36 ±3.5
219 ±34
46 ±4.4
142 ±9.6
21 ±0.5
67 ±0.9
646 ±12
987 ±69
72 ±3.7
896 ±131
aData are obtained with permission from Kamiloglu et al. (2014).
ABTS, [2,2′-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid)];
CUPRAC, cupric ion reducing antioxidant capacity; DPPH 2,2-diphenyl-
1-picrylhydrazyl; FRAP, ferric-reducing antioxidant power; GAE, gallic
acid equivalents; IN, dialysed fraction after intestinal digestion; Initial,
as initially determined from sample matrix using 75% aqueous-
methanol containing 0.1% formic acid; OUT, non-dialysed fraction
after intestinal digestion; PG, compounds remaining after gastric di-
gestion; and TE, trolox equivalents.
121Journal of Functional Foods 21 (2016) 113–132
& Capanoglu, 2013). They found that dried figs rendered higher
bioavailability of chlorogenic acid compared to fresh figs after
intestinal digestion (IN fraction). On the other hand, lower
bioavailability of rutin from dried figs after intestinal diges-
tion (IN fraction) was evident. Besides, an increase in the
amounts of both cyanidin-3-glucoside and cyanidin-3-rutinoside
of dried purple figs was observed after gastric digestion (PG frac-
tion). However, no anthocyanins were detected in dried figs after
intestinal digestion (IN fraction), indicating low bioaccessibility
of anthocyanins (Kamiloglu & Capanoglu, 2013). The antioxi-
dant activity (determined using ABTS assay) and total
proanthocyanidin content of dried figs decreased 83% and in-
creased 140%, respectively, after intestinal digestion (IN fraction).
Recently, the impact of GI digestion on the TPC and anti-
oxidant activities of dried apricots, figs, and raisins have been
determined, as summarised in Table 4 (Kamiloglu et al., 2014).
There was an increase in TPC (0.4-4.5-fold) for all samples after
the gastric digestion (PG fraction). The antioxidant activities
of dried apricots and figs were increased determined using
ABTS, CUPRAC, DPPH, and FRAP assays (Table 4). This indi-
cates an increase in the amount of polyphenols after the gastric
phase of the in vitro digestion process. However, after the pan-
creatic digestion phase (IN fraction), these antioxidants were
degraded by the alkaline pH, giving rise to a significant loss
in antioxidant activity after in vitro digestion.These results are
consistent with a recent study on Turkish dried fig varieties
(Kamiloglu & Capanoglu, 2015), demonstrating higher TPC, total
flavonoids, and total anthocyanin contents after gastric diges-
tion (PG fraction). However, low bioavailabilities of TPC, total
flavonoids, and total anthocyanins were noted after intesti-
nal digestion. Interestingly, total antioxidant activity of dried
figs increased after intestinal digestion (Kamiloglu & Capanoglu,
2015).
Even though simulated in vitro GI tract digestion model
cannot directly imitate the human in vivo conditions, this model
might be helpful for investigating the effect of food matrix and
enzymes on polyphenol bioaccessibility. In addition, determi-
nation of bioaccessibility by in vitro models can be well-
correlated with the results from human studies and animal
models (Kamiloglu & Capanoglu, 2013, 2015; Kamiloglu et al.,
2014). More research should be carried out to determine the
metabolites of bioactive compounds from dried fruits after
urinary excretion coupled together with cellular models such
as Caco-2 in order to obtain more qualitatively well-correlated
results with human/clinical studies. These data are essential
for demonstrating the true biological relevance of these com-
pounds in the context of nutrition and human health (Kamiloglu
& Capanoglu, 2015; Kamiloglu et al., 2014).
3. Beneficial health effects of dried fruits
Since numerous health-beneficial phytochemicals are found
even after processing of fruits, regular intake of dried fruits can
exert various health benefits. Dried fruits are essential sources
of potassium and dietary fibre with a low amount of fat (0.32–
0.93 g/100 g). It has been reported that consuming 40 g (on a
per serving basis) of dried fruits supplies 3.8–9.9% of potas-
sium and more than 9% of dietary fibre for recommended
dietary allowances (RDA) or adequate intake (AI) for adults
(Alasalvar & Shahidi, 2013a, 2013b). High intake of potassium
can help in reducing blood pressure (Lichtenstein et al., 2006).
High fibre diets are recommended to reduce the risk of devel-
oping various NCDs, including type II diabetes, obesity,
diverticulitis, colorectal cancer, and CVD (Anderson et al., 2009).
Dried fruits are excellent sources of carbohydrates and
sugars, such as glucose and fructose (Alasalvar & Shahidi, 2013a,
2013b). Due to their sweetness,dried fruits are expected to exert
a high glycaemic index (GI) (70 and above) and insulin re-
sponse. However, various studies have demonstrated that dried
fruits have a low (55 and lower) to moderate (56–69) glycaemic
and insulin indices, and hence, good glycaemic and insulin re-
sponse comparable to those of fresh fruits (Anderson et al.,
2011a, 2011b; Esfahani, Lam, & Kendall, 2014; Kim, Hertzler,
Byrne, & Mattern, 2008). This could be due to the presence of
fibre, phenolic compounds, and tannins that are able to mod-
erate the response. Thus, dried fruits with a low GI may help
to reduce the risk of diabetes and are useful for the medical
nutritional therapy of hyperglycaemic conditions (Alasalvar &
Shahidi, 2013a, 2013b).
Dietary phytoestrogens in dried fruits also play beneficial
roles in diabetes, bone health, breast cancer, CVD, and meta-
bolic syndrome (Poluzzi et al., 2014). Isoflavones and lignans
from dates appear to act through various mechanisms that
modulate pancreatic insulin secretion or through antioxi-
dant action. Besides, they may also act via estrogen receptor-
mediated mechanisms. Recently, it has been shown that
genistein and daidzein from dates play important roles in the
regulation of glucose homeostasis (Choi, Jung, Yeo, Kim, & Lee,
2008). Besides, genistein and daidzein also improve plasma
triacylglycerol (TAG) and free fatty acid (FFA) concentrations
by reducing intestinal cholesterol absorption (John et al., 2007).
Hence, it may be presumed that high amounts of phyto-
esterogens contained in dried fruits may potentially help to
maintain normal glucose and lipid metabolism in both healthy
populations as well as in obese/diabetic patients (Choi et al.,
2008; John et al., 2007).
Various scientific evidence suggest that individuals who
consume dried fruits regularly have a lower risk of CVD, obesity,
certain types of cancer, type II diabetes, metabolic syndrome,
inflammatory bowel disease, and osteoporosis as well as other
NCDs (Al-Farsi & Lee, 2008; Anderson & Waters, 2013; Kundu
& Surh, 2013; Lever, Cole, Scott, Emery, & Whelan, 2014; Vayalil,
2012). Table 5 summarises the health benefits of selected dried
fruits and their active components using only well-designed
animal or human studies. The health benefits of dried fruits
are mainly due to the additive and synergistic combinations
of their essential nutrients and phytochemicals (such as
anthocyanidins, carotenoids, phytoestrogens, flavan-3-ols, fla-
vones, flavonols,and phenolic acids) related to their antioxidant
activities (Liu, 2003; Parker et al., 2007; Rankin, Andreae, Oliver
Chen, & O’Keefe, 2008; Vinson et al., 2005).A number of studies
demonstrating the health benefits of various dried fruits have
been undertaken and these are outlined below.
3.1. Improved diet quality and overall health
Epidemiological studies, specifically, the National Health
and Nutrition Examination Survey (NHANES) (1999–2004)
122 Journal of Functional Foods 21 (2016) 113–132
Table 5 – Health promoting properties and mechanism of actions demonstrated by selected dried fruits determined in humans and animals.
Health effects Dried fruits/bioactives Study design Results/mechanisms Reference
Cardio
protective
Cranberries/phenolics Randomised, double-blind, and placebo-
controlled trial
Improvement in lipid profiles, liver function indices as well as antioxidant defences. Valentová et al. (2007)
Artherogenic-induced rats Improvement in lipid profiles, liver function indices as well as pro-inflammatory
biomarkers.
Kim, Ohn, Kim, and Kwak
(2011)
Raisins Randomised and controlled intervention
trial
Improved lipid profiles and inflammatory biomarkers. Puglisi et al. (2008)
Apricots/phenolics Ischeamia-reperfusion (I/R) rats model Alleviation of I/R injury in hearts by enhancement of antioxidant defences with
reduced lipid peroxidation.
Parlakpinar et al. (2009)
Prunes/pectin Apolipoprotein E-deficient mice Improved arterial atherosclerotic lesion with lowered plasma lipid profiles. Gallaher and Gallaher (2009)
Anti-
pathogenic
/antibiotic
Cranberries/phenolics Prospective, longitudinal, and followed-up
study
Improved antioxidant defence in vivo, relief and remission from urological symptoms
during regular and frequent urination, and reduced severity and prevalence of urinary
problems.
Bailey, Dalton, Daugherty, and
Tempesta (2007)
Cranberry/A-type
cranberry
proanthocyanidins
Randomised, double blind, controlled, and
dose dependent clinical trial
Reduced severity of urinary tract infections with antibiotic effects. Sengupta et al. (2011)
Apricots Prospective, longitudinal, and followed-up
epidemiological study
Reduced the severity and prevalence of urinary problems. Debre et al. (2010)
Randomised and controlled intervention
trial
Protection against Helicobacter pylori-induced chronic atrophic gastritis, which leads to
gastric cancer.
Enomoto et al. (2010)
Prunes Growing broiler chicks Beneficial effects in intestinal and immunity. Jang, Kang, and Ko (2013)
Anti-diabetic/
hypoglycaemic
Cranberries/
flavonoids
Normal aging rats Improved antioxidant status, protection and enhancement of pancreatic functions,
and maintenance of insulin release in normal aging rats.
Zhu et al. (2011)
Dates Randomised and controlled clinical trial Improved glycaemic and lipid controls in both healthy and diabetic patients. Famuyiwa et al. (1992); Miller,
Dunn, and Hashim (2003)
Type I diabetic rats Improved glucose homeostasis in type I diabetes and lipid profiles. Choi et al. (2008)
Raisins (Corinthian)/p-
hydroxybenzoic acid
Two-armed, randomised, and controlled,
prospective intervention trial
Improved diastolic blood pressure and total antioxidant potential in patients with
well-controlled type II diabetes.
Kanellos et al. (2014)
Raisins Randomised and controlled clinical trial Reduced glycaemia, systolic blood pressure, and cardiovascular risk factors. Anderson et al. (2014)
Raisins (Corinthian) Randomised and controlled clinical trial Improved glycaemic and insulin emic responses in healthy people and diabetic
patients.
Kanellos et al. (2013)
Raisins Single cross-over clinical trial Improved glycaemic and insulin response in diabetic patients and college aged
students.
Anderson et al. (2011a);
Anderson et al. (2011b)
Raisins Randomised and controlled clinical trial Improved blood pressure, glycaemic, and insulin response in diabetic patients. Bays et al. (2015)
Raisins Partial randomised and crossover controlled
trial
Improved glycaemic and insulin response in healthy individuals. Esfahani et al. (2014)
Cranberries Obese-diabetic rats Improved insulin emic and glycaemic control with enhanced antioxidant defence. Kim, Chung, Kim, and Kwak
(2013)
Antioxidative Apricots, cranberries,
dates, figs, plums, and
raisins/phenolics
Randomised and controlled clinical trial Enhancement in plasma antioxidant capacity,alleviating postprandial oxidative stress
after high sugar-drink intake.
Vinson et al. (2005)
Raisins Randomised, controlled, and cross-over
clinical trial
Protect plasma lipoproteins from oxidation. Parker et al. (2007)
Increased serum antioxidant capacity after postprandial oxidative stress. Cao et al. (1998)
Randomised, placebo-controlled, and
crossover clinical trial
Moderate enhancement in serum antioxidant capacity,alleviating pro-inflammatory
biomarkers.
Rankin et al. (2008)
Cranberries Randomised, double-blind, and placebo
controlled trial
Prevention of urinary tract infection as together with oxidative stress in vivo.Valentová et al. (2007)
Apricots Methotrexate-induced nephrotoxic rats Alleviation of nephrotoxicity by up-regulating endogenous antioxidant enzymes,
increasing blood antioxidant capacity.
Vardi, Parlakpinar, Ates,
Cetin, and Otlu (2013)
Prevented apoptosis and glomerulosclerosis in kidney. Vardi et al. (2013)
(continued on next page)
123Journal of Functional Foods 21 (2016) 113–132
Table 5 – (continued)
Health effects Dried fruits/bioactives Study design Results/mechanisms Reference
Lipid-lowering
effects
Peach, apple, and
pear/phenolics
Obese-induced rats Improved plasma and liver lipid profiles as well as antioxidant status (apple). Gorinstein et al. (2002)
Raisins Randomised, controlled, and cross-over
intervention trial
Improved lipid profiles, oxidative defence mechanisms, and colon function. Bruce et al. (1997); Bruce et al.
(2000)
Dates Hyper-cholesterolaemic rats Modulate cholesterol absorption or metabolism by improving lipid profiles and body
weight.
Alsaif et al. (2007)
Apples Normal and artherogenic rats Improved lipid profiles and reduced lipid peroxidation. Aprikian et al. (2001);
Leontowicz, Leontowicz,
Gorinstein, Martin-Belloso,
and Trakhtenberg (2007)
Prunes Ovariectomy-induced hypercholesterolaemic
rats
Improved lipid profiles. Lucas, Juma, Stoecker, and
Arjmandi (2000)
Bone health/
osteoprotective
Prunes/phenolics Randomised and controlled clinical trial Improved biochemical markers of bone turnover and muscular strength in breast
cancer survivors.
Simonavice et al. (2013)
C57BL/6J mice Prevents ovariectomy-induced bone loss while modulating the immune response. Rendina et al. (2012)
Randomised, controlled, and clinical trial Improved bone mineral density in postmenopausal women by partly suppressing the
rate of bone turnover.
Hooshmand et al. (2011)
Orchidectomised osteopenic rats Reversed bone loss by improving bone mineral density due to osteoporosis. Bu et al. (2007)
Male osteoporotic rats Prevents bone loss by increasing bone formation. Franklin et al. (2006)
Randomised, controlled, and intervention
trial
Improved indices of bone formation in postmenopausal women. Arjmandi et al. (2002)
Hepatoprotective Apricots Ethanol-induced rats Alleviated ethanol-induced liver damage in rats, enhanced liver antioxidant defences,
and prevented liver carcinogenesis.
Yurt and Celik (2011)
Prunes Randomised, controlled, and clinical trial Improved levels of liver enzymes for better control of hepatitis. Ahmed, Sadia, Khalid, Batool,
and Janjua (2010)
Appetite and
satiety
control
Prunes/fibre Randomised within-subject crossover
intervention trial
Better control of hunger, desire, and motivation to eat between snack and meal. Farajian, Katsagani, and
Zampelas (2010)
Raisins Randomised, controlled, and intervention
trial
Altering hormones influencing satiety by reducing hunger and improved lipid profiles. Puglisi et al. (2009)
Metabolic
syndrome
Cranberries/
procyanidins
Metabolic syndrome rats model Improved plasma glucose, lipid profiles, and kidney function associated with
metabolic syndrome.
Khanal, Rogers, Wilkes,
Howard, and Prior (2010)
Gastrointestinal
function
Prunes Randomised, controlled, and intervention
trial
Managing constipation by improving the frequency of bowel movements, ease on
defecation.
Pasalar and Lankarani (2015);
Pasalar, Lankarani,
Mehrabani, Tolide-ie, and
Nasri (2013)
Inflammatory
bowel
disease
Cranberries/phenolics
and fibre
Dextran sulphate sodium induced-colitis
rats model
Reduced inflammatory responses and prevented symptoms in colitis. Xiao et al. (2015)
124 Journal of Functional Foods 21 (2016) 113–132
demonstrate the association of dried fruit consumption and
reduced risks of NCDs (Keast et al., 2011). In the diet study, com-
prising 13,292 participants, dried fruit consumers are defined
as those who consume at least one-eighth cup-equivalent of
fruit per day. Diet quality was measured using the Healthy
Eating Index 2005. Dried fruit consumers had improved
MyPyramid food intake, including lower solid fats/alcohol/
added sugars intake than non-consumers. The total Healthy
Eating Index 2005 score was significantly higher (p<0.01) in
consumers (59.3 ±0.5) than non-consumers (49.4 ±0.3). The
average energy intake of dried fruit consumers was 1038 kJ
higher than non-consumers. However, weight, body mass index
(BMI), waist circumference, subscapular skinfolds, and risk of
overweight were all inversely related to dried fruit consump-
tion. Additionally, diastolic and systolic blood pressures were
also inversely associated with dried fruit consumption in this
population (Keast et al., 2011). The prevalence and risk for
overweight/obesity (56.2 ±2.3 vs 65.8 ±0.7; p<0.01; odds ratio,
0.65; and 95% confidence interval, 0.52–0.81) were both lower
in dried fruit consumers than non-consumers. In short, dried
fruit consumption was associated with improved nutrient
intakes (vitamins A, E, and K, magnesium, phosphorus, and po-
tassium), a higher overall diet quality score, and lower body
weight/adiposity measures (Keast et al., 2011).
3.2. Anti-glaucoma effect
Specific health benefit of dried peach consumption was dem-
onstrated by another cohort study (Coleman et al., 2008). The
association between glaucoma and the consumption of spe-
cific fruits and vegetables was studied in a cohort of women
aged 65 and older, with osteoporotic fractures. The odds ratio
for the risk of glaucoma were lowered by 47% in women who
consumed at least one serving per week of dried peaches com-
pared to those who consumed less than one serving per month.
However, consumption of one, two, or more servings of fresh
peaches per week did not have any effect (Coleman et al., 2008).
The protective effect of dried peaches may be due to their
content of vitamin A or provitamin A carotenoids, especially
β-cryptoxanthin, which may become more bioavailable after
processing (Coleman et al., 2008; Namitha & Negi, 2010). The
authors recommended that randomised controlled trials are
needed to determine whether the intake of specific nutrients
from dried peaches changes the risk of glaucoma (Coleman
et al., 2008).
3.3. Anticancer effect
The potential anticancer effects of dried fruits were reported
by Mills, Beeson, Phillips, and Fraser (1989) in a cohort study
of diet, lifestyle, and prostate cancer risk of approximately 14,000
Seventh-day Adventist men. During a 6-year follow-up period,
they found that increased consumption of raisins, dates, and
other dried fruits were significantly associated with de-
creased prostate cancer risk. Moreover, the decreased risk of
prostate cancer was not related to exposure to vegetarian life-
style during childhood, suggesting the potential benefits of dried
fruits in the prevention of prostate cancer (Mills et al., 1989).
3.4. Lipid-lowering effect
An in vivo study was carried out in rats fed on a diet with or
without 1% cholesterol and 10% dried peaches, apples,or pears.
Dried peach supplementation of a cholesterol-containing diet
significantly prevented the increase in plasma and liver lipids,
although the values were still higher than those of rats fed
cholesterol-free diets (Gorinstein et al., 2002). However, dried
peach supplementation had no effect on plasma antioxidant
capacity and serum lipid oxidation levels. Meanwhile, dried
apples were more effective than dried peaches and pears in
alleviating lipid levels and markers of oxidative stress. The
authors suggest that this may be due to higher concentra-
tions of phenolic compounds found in dried apples, where the
effects on lipid levels may also be dependent on the fibre
content, which was high in all dried fruits (Gorinstein et al.,
2002).
3.5. Antioxidative and anti-inflammation effects
Study of serum antioxidant capacity after consumption of
raisins was conducted by Parker et al. (2007). Consumption of
raisins for 4 weeks increased serum antioxidant capacity by
the second and third week during the study duration.However,
antioxidant capacity fell again in the fourth week.The authors
postulated that there may be a physiological plateau of 2 or 3
weeks after consistent consumption. At the same time, Cao,
Booth, Sadowski, and Prior (1998) reported similar results. It
was speculated that the high sugar content of raisins may have
affected the antioxidant capacity of blood by inducing post-
prandial oxidative stress (Parker et al., 2007). A more recent
study found that serum antioxidant capacity was modestly in-
creased by daily consumption of raisins, but this did not alter
postprandial inflammatory response in these relatively healthy
but overweight individuals (Rankin et al., 2008). In another study,
feeding sun-dried raisins prior to and during a triathlon to
trained athletes significantly lowered the urinary pro-
inflammatory biomarkers compared to feeding of a glucose
drink with the same energy content, suggesting the excellent
antioxidant capacity of raisins in vivo (Spiller, Schultz, Spiller,
& Ou, 2002). Meanwhile, the effect of diets containing raisins
alone or together with other plant materials with improved
blood lipid profiles have also been reported (Bruce, Spiller, &
Farquhar, 1997; Bruce, Spiller, Klevay, & Gallagher, 2000). These
imply that inclusion of raisins in the daily diet could reduce
the risk of CVD by increasing plasma antioxidant capacity, low-
ering the total and LDL cholesterol concentrations and reducing
inflammation (Shahidi & Tan, 2013).
3.6. Antibiotic/anti-pathogenic effect
Dried cranberries are particularly effective in reducing reoc-
currence and severity of urinary tract infections (UTIs), as
already reviewed in the existing literature (Howell, 2007; Howell
et al., 2005; Jepson & Craig, 2007; Vasileiou, Katsargyris,
Theocharis, & Giaginis, 2013). This approach has attracted in-
creasing attention due to antibiotic resistance which leads to
ineffective treatment and persistent reoccurrence of UTIs. In
a recent review by Micali et al. (2014), after evaluation of the
efficacy/safety ratio of dried cranberry in the prevention of UTIs,
125Journal of Functional Foods 21 (2016) 113–132
the use of dried cranberry in the prevention of recurrent UTIs
in young and middle-aged women is strongly recommended.
However, evidence of its clinical use among other patients
remains to be investigated.
3.7. Cardioprotection effect
A 1-year randomised cross-over clinical trial was conducted
to evaluate the effect of dried apples vs prunes consumption
(75 g/day) in reducing CVD risk factors in postmenopausal
women (Chai et al., 2012). The authors found that there was
no significant difference (p>0.05) between the effects of dried
apples and prunes in altering serum levels of cholesterols except
total cholesterol after 6 months. However, when within treat-
ment group comparisons are made, consumption of dried
apples (about two medium-sized apples) can significantly lower
atherogenic cholesterol levels as early as 3 months.Both dried
apples and prunes were able to lower serum levels of lipid hy-
droperoxides and C-reactive protein (CRP).However, serum CRP
levels were significantly lower in prunes group compared with
the dried apples group at the end of 3 months. The authors
conclude that the consumption of dried apples and prunes is
beneficial to human health in terms of anti-inflammatory and
antioxidative properties.
3.8. Bone protection
A recent study compared the efficacies of several dried fruits
(prunes, apples, apricots, raisins, and mangoes) in the resto-
ration of bone in an osteopenic ovariectomised (OVX) mouse
model (Rendina et al., 2013). As a result,whole body and spine
bone mineral density improved in mice consuming prune,
apricot, and raisin diets compared to the OVX control mice.
However, prunes were the only dried fruits that had an ana-
bolic effect on trabecular bone in the vertebra that prevents
bone loss in the tibia. Additionally, restoration of biomechani-
cal properties occurred in conjunction with changes in
trabecular bone in spine. Compared to other dried fruits in this
study, prunes were unique in their ability to down-regulate os-
teoclast differentiation coincident with up-regulating osteoblast
and glutathione activity (Rendina et al., 2013).The authors sug-
gested that these alterations in bone metabolism and
antioxidant status compared to other dried fruits provide insight
into prunes’ unique effects in bone health. In addition, the
bioactive component(s) in prunes remain to be identified as
to whether it is a single component or the unique combina-
tion of nutrients and phytochemicals in prunes that is
responsible for the osteoprotective effects (Rendina et al., 2013).
3.9. Anti-diabetic/hypoglycaemic effect
The acute glycaemic and insulin response to dates in dia-
betic and non-diabetic subjects was carried out by Famuyiwa
et al. (1992). Results demonstrated that the well-controlled dia-
betic patients had significantly lower glucose levels after the
consumption of Sukkari dates. In addition, stimulation of insulin
secretion in healthy volunteers after dates’ consumption was
2.7 times less than that of dextrose.The same results were also
obtained by Anderson et al. (2011a) using raisins. This shows
that dried fruits do not adversely affect the glucose tolerance
in healthy individuals. In addition, dried fruits consumption
would benefit the control of diabetes in patients (Anderson et al.,
2011a; Famuyiwa et al., 1992). Some recent well-controlled clini-
cal trials have shown the beneficial effects of raisins compared
to fresh fruits and processed snacks in improving glycaemic
and insulin response in diabetic patients with cardiovascular
risk factors (Table 5)(Anderson, Weiter, Christian, Ritchey, &
Bays, 2014; Bays, Weiter, & Anderson, 2015; Kanellos et al., 2013,
2014).
In summary, well-designed human intervention studies are
needed to further validate the health effects of various dried
fruits, especially dried peaches, where studies on their poten-
tial health benefits are scarce (Table 5). Some limitations from
previous studies need to be addressed to demonstrate more
affirming results. It has been suggested that future human
studies should address subject characteristics, their health
status, and other confounding factors before making any re-
liable conclusions for the health effects of dried fruits
(Burton-Freeman, 2010).Various new analytical methods, such
as nanotechnology or nutrigenetics, might be promising tools
to get a clearer picture about the interactions between diet com-
ponents from dried fruits and human genetic susceptibility to
disease development (Tomás-Barberán & Andrés-Lacueva, 2012).
4. Novel product formulations and future
perspectives
To the best of our knowledge, limited information is avail-
able regarding the functional characteristics and potential
applications of various dried fruits and their by-products.
Raisins, dried apricots, and dried figs are an indispensable in-
gredient in breads, cakes, cookies, pies, puddings, tarts, pastries,
jams, marmalades, and sugar and confectionery products as
a delicious ingredient. They are mixed or added to several
cereals and cereal-based products, such as muesli logs, fruit
filled cereals, nuggets, yogurts, ice creams, and even in some
types of cheeses (Alasalvar, 2013; California Prune Board, 2005;
Göncüog˘ lu, Mogol, & Gökmen, 2013; Shahidi & Tan, 2013).
Prune puree, obtained from whole prunes by extrusion, in
the form of homogenous paste, has a number of applications
such as fat replacer for reducing fat content in a series of goods
while imparting delicious flavour (California Prune Board, 2005).
Besides, the particular composition of prunes also confers them
other technological functionalities, such as antioxidant effect
in roast beef (Osburn, 2009) and preservative effect in bread,
or for inhibiting pathogen growth in extending shelf life in
baked goods (Fung & Thompson, 2009). Dried peaches are
utilised as pie, tart, and turnover filling, while their powders
provide excellent purees, spreads, or glazes, after proper de-
hydration and preparation (Alvarez-Parrilla, de la Rosa,
González-Aguilar, & Ayala-Zavala, 2013).
Dried peach by-products have been used as food additives
as antioxidants, antimicrobials, colorants, flavourings, and thick-
eners, where this also applies to the by-products of other dried
fruits, such as apricots (Alvarez-Parrilla et al., 2013). More re-
search is needed to enhance the potential functionalities of
the by-products of other dried fruits in the future, where these
by-products have been shown to contain numerous phyto-
126 Journal of Functional Foods 21 (2016) 113–132
chemicals that may be beneficial to human health (Pelentir,
Block, Monteiro Fritz, Reginatto, & Amante, 2011). These aspects
should be examined to identify other possible value-added uses
for human nutrition, in addition to minimising the cost of waste
management for the agro-business industry. Utilisation of the
by-products as sources for developing functional foods and
nutraceuticals may also help to improve the quality of life by
preventing the occurrence of diseases and maintaining the well-
ness of human beings (Galanakis, 2012).
One of the major safety concerns with regard to dried fruits
is the potential microbial spoilage during storage and the po-
tential health hazard resulting from natural/microbial toxins
(Iamanaka, Taniwaki, Menezes, Vicente, & Fungaro, 2005; Iqbal,
Asi, & Jinap, 2014; Luttfullah & Hussain, 2011; Masood, Iqbal,
Asi, & Malik, 2015). It has been shown that dried fruits can be
contaminated with aflatoxins (aflatoxins B1,B
2,G
1, and G2),
ochratoxin-A, kojic acid,and occasionally patulin or zearalenone
(Iqbal et al., 2014; Karaca & Nas, 2006; Luttfullah & Hussain,
2011; Masood et al., 2015; Trucksess & Scott, 2008; Van de Perre,
Jacxsens, Lachat, El Tahan, & De Meulenaer, 2015). A recent
study documented the occurrence of high levels of total afla-
toxins (3.28–6.32 µg/kg) and aflatoxin B1(2.42–4.5 µg/kg) in dried
apricots, dates, figs, prunes, and raisins from Pakistan, of which
the levels were above the European Union (EU) limits (4 and
2µg/kg, respectively) (Masood et al., 2015). The same results
were also found among five varieties of dates and four date
products from Pakistan (Iqbal et al., 2014). The authors have
urged the relevant authorities to screen for the contamina-
tion of aflatoxins in dried fruits and their products, where strict
regulations should be implemented to minimise fungal con-
tamination (Iqbal et al., 2014; Masood et al., 2015).
Besides, drying of fresh fruits at high temperatures may gen-
erate Maillard reaction products (MRP) due to non-enzymatic
browning reactions, which are potentially genotoxic (Rawson
et al., 2011). Metabolites of 5-(hydroxymethyl)-2-furfural, an MRP,
have been detected in the urine of human volunteers receiv-
ing dried prunes or dried prune juices (Prior, Wu, & Gu, 2006).
However, Lavelli and Vantaggi (2009) found that Maillard re-
action occurs very slowly in dried fruits, most probably due to
the low mobility of water and the rate of reaction increases
upon a critical water activity level where mobility of water is
higher. Hence, the hydroxymethylfurfural content of dehy-
drated apples was found to be lower than those of apple juice
concentrates and apple pomace (Lavelli & Vantaggi, 2009). The
difference between the level of MRP detected in dried prunes
and dehydrated apples could be due to different samples and
different processing methods. Besides, heat-catalysed Maillard
reaction, an enzymatic browning reaction, has also been re-
ported to occur in dried fruits (Rawson et al., 2011). To avoid
non-enzymatic browning reactions, processing of dried fruits
should be carried out at relatively low temperatures. Appro-
priate processing can prevent browning of dried fruits. For
example, pre-treatment of apples with pineapple juice has been
shown to reduce the rate and extent of enzymatic browning
reaction (Rawson et al., 2011).Therefore,dried fruits should go
through routine quality assessment before consumption. Hence,
more research is needed to further refine and optimise the
drying processes utilised for production of dried fruits.
Dried peaches [produced with sulphites (sulphur dioxide or
potassium metabisulphite)] are used as preservatives and an-
tioxidants. However, ingested sulphites have been shown to
cause several mild to severe, and even fatal, adverse effects to
the asthmatic population, including broncho-constriction, ur-
ticarial, and anaphylaxis (Alvarez-Parrilla et al., 2013).Therefore,
consumption of dried peaches (possibly other dried fruits) con-
taining high levels of sulphites may pose a threat to sensitive
individuals. The use of alternative treatments to help pre-
serve the quality of fruits throughout dehydration and storage
is recommended (DiPersio, Kendall, & Sofos, 2004).
With the advancement in food processing technologies, a
wide variety of dried fruits and their combinations are now
available in the shelves of supermarkets, indicating their in-
creased popularity (Vayalil, 2012).There is a great opportunity
to develop functional foods from dried fruits evolving and
growing at different rates both within and across various coun-
tries. However, the development is not spread evenly due to
consumer resistance, legislative barriers, ethical variations, cost
effectiveness, and technological issues (Sun-Waterhouse, 2011).
The future of functional foods based on dried fruits depends
on their efficacy in promoting health. Hence, a structured ap-
proach for designing and developing dried fruit-based functional
finished products should be used to address the technical chal-
lenges and their associated solutions during food design,
formulation, processing, and storage. In addition, a consumer-
oriented food product development process should also be used
to control the interactions among the targeted bioactive com-
pounds and other food components in dried fruits during
processing, handling, and storage. This is the key to ensure that
a stable and appealing functional food is produced from dried
fruit. In short, controlling the beneficial synergies among food
ingredients and food formulation/processing methods has the
potential to lead to substantial food innovations for dried fruit-
based functional foods (Sun-Waterhouse, 2011).The scientific
community is expecting more exciting results on the prod-
ucts in the coming years.
5. Conclusion
Dried fruits are nutritionally equivalent to fresh fruits in smaller
serving sizes. They have unique combination of taste/aroma,
essential nutrients, fibre, and phytochemicals. Dried fruits are
important for human health in providing great nourishment
and health benefits. More research should be carried out to de-
termine the complete profiles of phytochemicals, such as
phenolic acids, flavonoids, phytoestrogens, and carotenoids of
other dried fruits in relation to their antioxidant activities or
other bioactivities. Considerable opportunities exist in the dried
fruit-based functional food products for expansion and inno-
vation. Hence, more sophisticated human intervention studies
or clinical trials are needed to validate the health benefits of
various dried fruits.
REFERENCES
Aegean Exporter’s Associations. (2009). Report on food composition
and clinical research on seedless raisins and dried figs. Izmir,
Turkey: Aegean Exporter’s Associations.
127Journal of Functional Foods 21 (2016) 113–132
Ahmed, T., Sadia, H., Khalid, A., Batool, S., & Janjua, A. (2010).
Report: Prunes and liver function: A clinical trial. Pakistan
Journal of Pharmaceutical Sciences,23, 463–466.
Al-Farsi, M., Alasalvar, C., Morris, A., Baron, M., & Shahidi, F.
(2005). Comparison of antioxidant activity, anthocyanins,
carotenoids, and phenolics of three native fresh and sun-
dried date (Phoenix dactylifera L.) varieties grown in Oman.
Journal of Agricultural and Food Chemistry,53, 7592–7599.
Al-Farsi, M., & Lee, C. Y. (2008). Nutritional and functional
properties of dates: A review. Critical Reviews in Food Science
and Nutrition,48, 877–887.
Alasalvar, C. (2013). Functional characteristics of dried figs. In C.
Alasalvar & F. Shahidi (Eds.), Dried fruits: Phytochemicals and
health effects (pp. 284–299). Oxford: Wiley-Blackwell.
Alasalvar, C., & Shahidi, F. (2013a). Composition, phytochemicals
and beneficial health effects of dried fruits: an overview. In C.
Alasalvar & F. Shahidi (Eds.), Dried fruits: Phytochemicals and
health effects (pp. 1–18). Oxford: Wiley-Blackwell.
Alasalvar, C., & Shahidi, F. (2013b). Nutritional composition,
phytochemicals, and health benefits of dates. In C. Alasalvar
& F. Shahidi (Eds.), Dried fruits: Phytochemicals and health effects
(pp. 428–443). Oxford: Wiley-Blackwell.
Alsaif, M. A., Khan, L. K., Alhamdan, A. A., Alorf, S. M., Harfi, S. H.,
Al-Othman, A. M., & Arif, Z. (2007). Effect of dates and gahwa
(Arabian coffee) supplementation on lipids in
hypercholesterolemic hamsters. International Journal of
Pharmacology,3, 123–129.
Alvarez-Parrilla, E., de la Rosa, L. A., González-Aguilar, G. A., &
Ayala-Zavala, J. F. (2013). Phytochemical composition and
health aspects of peach products. In C. Alasalvar & F. Shahidi
(Eds.), Dried fruits: Phytochemicals and health effects (pp. 309–
324). Oxford: Wiley-Blackwell.
Anderson, J. A., Andersen, K. F., Heimerman, R. A., Larson, M. M.,
Baker, S. E., Freeman, M. R., Carughi, A., & Wilson, T. (2011a).
Glycaemic response of type 2 diabetics to raisins. FASEB
Journal,25, 587.5.
Anderson, J. A., Huth, H. A., Larson, M. M., Colby, A. J., Krieg, E. J.,
Golbach, L. P., Simon, K. A., Wasmundt, S. L., Malone, C. J., &
Wilson, T. (2011b). Glycaemic and insulin response to raisins,
grapes and bananas in college aged students. FASEB Journal,
25, 587.4.
Anderson, J. W., Baird, P., Davis, R. H., Jr., Ferreri, S., Knudtson, M.,
Koraym, A., Waters, V., & Williams, C. L. (2009). Health benefits
of dietary fiber. Nutrition Reviews,67, 188–205.
Anderson, J. W., & Waters, A. R. (2013). Raisin consumption by
humans: Effects on glycemia and insulinemia and
cardiovascular risk factors. Journal of Food Science,78, A11–A17.
Anderson, J. W., Weiter, K. M., Christian, A. L., Ritchey, M. B., &
Bays, H. E. (2014). Raisins compared with other snack effects
on glycaemia and blood pressure: A randomized, controlled
trial. Postgraduate Medicine,126, 37–43.
Aprikian, O., Levrat-Verny, M. A., Besson, C., Busserolles, J.,
Rémésy, C., & Demigné, C. (2001). Apple favourably affects
parameters of cholesterol metabolism and of anti-oxidative
protection in cholesterol-fed rats. Food Chemistry,75, 445–452.
Arjmandi, B. H., Khalil, D. A., Lucas, E. A., Georgis, A., Stoecker, B.
J., Hardin, C., Payton, M. E., & Wild, R. A. (2002). Dried plums
improve indices of bone formation in postmenopausal
women. Journal of Women’s Health and Gender-Based Medicine,
11, 61–68.
Bailey, D. T., Dalton, C., Daugherty, F. J., & Tempesta, M. S. (2007).
Can a concentrated cranberry extract prevent recurrent
urinary tract infections in women? A pilot study.
Phytomedicine: International Journal of Phytotherapy and
Phytopharmacology,14, 237–241.
Bays, H., Weiter, K., & Anderson, J. (2015). A randomized study of
raisins versus alternative snacks on glycemic control and
other cardiovascular risk factors in patients with type 2
diabetes mellitus. Physician and Sportsmedicine,43,
37–43.
Bhagwat, S., Haytowitz, D. B., & Holden, J. M. (2014). USDA
Database for the flavonoid content of selected foods, release 3.1.
<http://www.ars.usda.gov/nutrientdata/flav>Accessed
25.03.15.
Bradford, P. G., & Awad, A. B. (2007). Phytosterols as anticancer
compounds. Molecular Nutrition and Food Research,51,
161–170.
Bruce, B., Spiller,G. A., & Farquhar, J. W. (1997). Effects of a plant-
based diet rich in whole grains, sun-dried raisins and nuts on
serum lipoproteins. Vegetarian Nutrition: An International
Journal,1, 58–63.
Bruce, B., Spiller, G. A., Klevay, L. M., & Gallagher, S. K. (2000). A
diet high in whole and unrefined foods favourably alters
lipids, antioxidant defences, and colon function. Journal of the
American College of Nutrition,19, 61–67.
Bu, S. Y., Lucas, E. A., Franklin, M., Marlow, D., Brackett, D. J.,
Boldrin, E. A., Devareddy, L., Arjmandi, B. H., & Smith, B. J.
(2007). Comparison of dried plum supplementation and
intermittent PTH in restoring bone in osteopenic
orchidectomized rats. Osteoporosis International,18, 931–942.
Burton-Freeman, B. (2010). Postprandial metabolic events and
fruit-derived phenolics: A review of the science. British Journal
of Nutrition,104, S1–S14.
California Prune Board. (2005). California dried plums offer bakers
innovative solutions to control and reduce fat, calories, sugar and
carbohydrates while extending shelf life. Pleasanton, CA:
California Prune Board.
Cao, G., Booth, S. L., Sadowski, J. A., & Prior, R. L. (1998). Increases
in human plasma antioxidant capacity after consumption of
controlled diets high in fruit and vegetables. American Journal
of Clinical Nutrition,68, 1081–1087.
Chai, S. C., Hooshmand, S., Saadat, R. L., Payton, M. E., Brummel-
Smith, K., & Arjmandi, B. H. (2012). Daily apple versus dried
plum: Impact on cardiovascular disease risk factors in
postmenopausal women. Journal of the Academy of Nutrition
and Dietetics,112, 1158–1168.
Chiou, A., Karathanos, V. T., Mylona, A., Salta, F. N., Preventi, F., &
Andrikopoulos, N. K. (2007). Currants (Vitis vinifera L.) content
of simple phenolics and antioxidant activity. Food Chemistry,
102, 516–522.
Choi, M. S., Jung, U. J., Yeo, J. K. M. J., Kim, M. J., & Lee, M. K. (2008).
Genistein and daidzein prevent diabetes onset by elevating
insulin level and altering hepatic gluconeogenic and lipogenic
enzyme activities in non-obese diabetic (NOD) mice.
Diabetes/Metabolism Research and Reviews,24, 74–81.
Coleman, A. L., Stone, K. L., Kodjebacheva, G., Yu, F., Pedula, K. L.,
Ensrud, K. E., Cauley, J. A., Hochberg, M. C., Topouzis, F.,
Badala, F., & Mangione, C. M. (2008).Glaucoma risk and the
consumption of fruits and vegetables among older women in
the study of osteoporotic fractures. American Journal of
Ophthalmology,145, 1081–1089.
Debre, B., Conquy, S., Amsallem-Ouazanal, D., Bruel, P., Rahhali,
N., & Charles, J. (2010). PIH35 impact of preventive treatment
with titrated dry cranberry extract in a patient suffering from
recurrent cystitis. Value in Health,13, A186.
Del Caro, A., Piga, A., Pinna, I., Fenu, P. M., & Agabbio, M. (2004).
Effect of drying conditions and storage period on
polyphenolic content, antioxidant capacity, and ascorbic acid
of prunes. Journal of Agricultural and Food Chemistry,52, 4780–
4784.
Delgado-Pelayo, R., Gallardo-Guerrero, L., & Hornero-Méndez, D.
(2014). Chlorophyll and carotenoid pigments in the peel and
flesh of commercial apple fruit varieties. Food Research
International,65, 272–281.
DiPersio, P. A., Kendall, P. A., & Sofos, J. N. (2004). Inactivation of
Listeria monocytogenes during frying and storage of peach
128 Journal of Functional Foods 21 (2016) 113–132
slices treated with acidic or sodium metabisulphite solutions.
Food Microbiology,21, 641–648.
Donovan, J. L., Meyer, A. S., & Waterhouse, A. L. (1998). Phenolic
composition and antioxidant activity of prunes and prune
juice (Prunus domestica). Journal of Agricultural and Food
Chemistry,46, 1247–1252.
Enomoto, S., Yanaoka, K., Utsunomiya, H., Niwa, T., Inada, K.,
Deguchi, H., Ueda, K., Mukoubayashi, C., Inoue, I., Maekita, T.,
Nakazawa, K., Iguchi, M., Arii, K., Tamai, H., Yoshimura, N.,
Fujishiro, M., Oka, M., & Ichinose, M. (2010). Inhibitory effects
of Japanese apricot (Prunus mume Siebold et Zucc.; Ume) on
Helicobacter pylori-related chronic gastritis. European Journal of
Clinical Nutrition,64, 714–719.
Erdog˘ an, S., & Erdemog˘ lu, S. (2011). Evaluation of polyphenol
contents in differently processed apricots using accelerated
solvent extraction followed by high-performance liquid
chromatography-diode array detector. International Journal of
Food Sciences and Nutrition,62, 729–739.
Esfahani, A., Lam, J., & Kendall, C. W. (2014). Acute effects of
raisin consumption on glucose and insulin responses in
healthy individuals. Journal of Nutritional Science,3, 1–6.
Famuyiwa, O. O., El-Hazmi, M. A. F., Al-Jasser, S. J., Sulimani, R. A.,
Jayakumar, R. V., Al-Nuaim, A. A., & Mekki, M. O. (1992). A
comparison of acute glycaemic and insulin response to dates
(Phoenix dactylifera) and oral dextrose in diabetic and non-
diabetic subjects. Saudi Medical Journal,13, 397–402.
Fang, N. B., Yu, S. G., & Prior, R. L. (2002). LC/MS/MS
characterization of phenolic constituents in dried plums.
Journal of Agricultural and Food Chemistry,50, 3579–3585.
Farajian, P., Katsagani, M., & Zampelas, A. (2010). Short-term
effects of a snack including dried prunes on energy intake
and satiety in normal-weight individuals. Eating Behaviors,11,
201–203.
Ferreira, D., Guyot, S., Marnet, N., Delgadillo, I., Renard, C. M., &
Coimbra, M. A. (2002). Composition of phenolic compounds in
a Portuguese pear (Pyrus communis L. var. S. Bartolomeu) and
changes after sun-drying. Journal of Agricultural and Food
Chemistry,50, 4537–4544.
Franke, A. A., Custer, L. J., Arakaki, C., & Murphy, S. P. (2004).
Vitamin C and flavonoid levels of fruits and vegetables
consumed in Hawaii. Journal of Food Composition and Analysis,
17, 1–35.
Franklin, M., Bu, S. Y., Lerner, M. R., Lancaster, E. A., Bellmer, D.,
Marlow, D., Lightfoot, S. A., Arjmandi, B. H., Brackett, D. J.,
Lucas, E. A., & Smith, B. J. (2006). Dried plum prevents bone
loss in a male osteoporosis model via IGF-I and the RANK
pathway. Bone,39, 1331–1342.
Fung, D. Y. C., & Thompson, L. K. (2009). “Natural” suppression of
the growth of foodborne pathogens in meat products.
International Review of Food Science and Technology,2, 80–81.
Galanakis, C. M. (2012). Recovery of high added-value
components from food wastes: Conventional, emerging
technologies and commercialized applications. Trends in Food
Science and Technology,26, 68–87.
Gallaher, C. M., & Gallaher, D. D. (2009). Dried plums (prunes)
reduce atherosclerosis lesion area in apolipoprotein
E-deficient mice. British Journal of Nutrition,101, 233–239.
Gorinstein, S., Martin-Belloso, O., Lojek, A., C
ˇíž, M., Soliva-
Fortuny, R., Park, Y. S., Caspi, A., Libman, I., & Trakhtenberg, S.
(2002). Comparative content of some phytochemicals in
Spanish apples, peaches, and pears. Journal of the Science of
Food and Agriculture,82, 1166–1170.
Göncüog˘ lu, N., Mogol, B. A., & Gökmen, V. (2013). Phytochemicals
and health benefits of dried apricots. In C. Alasalvar & F.
Shahidi (Eds.), Dried fruits: Phytochemicals and health effects (pp.
226–242). Oxford: Wiley-Blackwell.
Habauzit, V., & Morand,C. (2012). Evidence for a protective effect
of polyphenols-containing foods on cardiovascular health: An
update for clinicians. Therapeutics Advances in Chronic Disease,
3, 87–106.
Harnly, J. M., Doherty, R. F., Beecher, G. R., Holden, J. M.,
Haytowitz, D. B., Bhagwat, S., & Gebhardt, S. (2006). Flavonoid
content of US fruits, vegetables, and nuts. Journal of
Agricultural and Food Chemistry,54, 9966–9977.
He, F. J., Nowson, C. A., Lucas, M., & MacGregor, G. A. (2007).
Increased consumption of fruit and vegetables is related to a
reduced risk of coronary heart disease: Meta-analysis of
cohort studies. Journal of Human Hypertension,21, 717–728.
Hooshmand, S., Chai, S. C., Saadat, R. L., Payton, M. E., Brummel-
Smith, K., & Arjmandi, B. H. (2011). Comparative effects of
dried plum and dried apple on bone in postmenopausal
women. British Journal of Nutrition,106, 923–930.
Howell, A. B. (2007). Bioactive compounds in cranberries and
their role in prevention of urinary tract infections.Molecular
Nutrition and Food Research,51, 732–737.
Howell, A. B., Reed, J. D., Krueger, C. G., Winterbottom, R.,
Cunningham, D. G., & Leahy, M. (2005). A-type cranberry
proanthocyanidins and uropathogenic bacterial anti-
adhesion activity. Phytochemistry,66, 2281–2291.
Iamanaka, B. T., Taniwaki, M. H., Menezes, H. C., Vicente, E., &
Fungaro, M. H. P. (2005). Incidence of toxigenic fungi and
ochratoxin A in dried fruits sold in Brazil.Food Additives and
Contaminants,22, 1258–1263.
INC. (2014). World dried fruits production. Reus, Spain: International
Nut and Dried Fruit Council Foundation.
Iqbal, S. Z., Asi,M. R., & Jinap, S. (2014). Aflatoxins in dates and
dates products. Food Control,43, 163–166.
Ishiwata, K., Yamaguchi, T., Takamura, H., & Matoba, T. (2004).
DPPH radical-scavenging activity and polyphenol content in
dried fruits. Food Science and Technology Research,10, 152–
156.
Jang, I., Kang, S., & Ko, Y. (2013). Influence of plum (Prunus mume
Siebold and Zucc.) products on growth performance,
intestinal function and immunity in broiler chicks. Journal of
Poultry Science,50, 28–36.
Jepson, R. G., & Craig, J. C. (2007). A systematic review of the
evidence for cranberries and blueberries in UTI prevention.
Molecular Nutrition and Food Research,51, 738–745.
John, S., Sorokin, A. V., & Thompson, P. D. (2007). Phytosterols and
vascular disease. Current Opinion in Lipidology,18, 35–40.
Joshi, A. P. K., Rupasinghe, H. P. V., & Khanizadeh, S. (2011).
Impact of drying processes on bioactive phenolics, vitamin C,
and antioxidant capacity of red-fleshed apple slices. Journal of
Food Processing and Preservation,35, 453–457.
Kamiloglu, S., & Capanoglu, E. (2013). Investigating the in vitro
bioaccessibility of polyphenols in fresh and sun-dried figs
(Ficus carica L.). International Journal of Food Science and
Technology,48, 2621–2629.
Kamiloglu, S., & Capanoglu, E. (2015). Polyphenol content in figs
(Ficus carica L.): Effect of sun-drying. International Journal of
Food Properties,18, 521–535.
Kamiloglu, S., Pasli, A. A., Ozcelik, B., & Capanoglu, E. (2014).
Evaluating the in vitro bioaccessibility of phenolics and
antioxidant activity during consumption of dried fruits with
nuts. LWT-Food Science and Technology,56, 284–289.
Kanellos, P. T., Kaliora, A. C., Liaskos, C., Tentolouris, N. K., Perrea,
D., & Karathanos,V. T. (2013). A study of glycaemic response
to Corinthian raisins in healthy subjects and in type 2
diabetes mellitus patients. Plant Foods for Human Nutrition,68,
145–148.
Kanellos, P. T., Kaliora, A. C., Tentolouris, N. K., Argiana, V., Perrea,
D., Kalogeropoulos, N., Kountouri, A. M., & Karathanos, V. T.
(2014). A pilot, randomized controlled trial to examine the
health outcomes of raisin consumption in patients with
diabetes. Nutrition (Burbank, Los Angeles County, Calif.),30, 358–
364.
129Journal of Functional Foods 21 (2016) 113–132
Karaca, H., & Nas, S. (2006). Aflatoxins, patulin, and ergosterol
contents of dried figs in Turkey. Food Additives and
Contaminants,23, 502–508.
Kayano, S. I., Kikuzaki, H., Fukutsuka, N., Mitani, T., & Nakatani,
N. (2002). Antioxidant activity of prune (Prunus domestica L.)
constituents and a new synergist. Journal of Agricultural and
Food Chemistry,50, 3708–3712.
Kayano, S. I., Kikuzaki, H., Ikami, T., Suzuki, T., Mitani, T., &
Nakatani, N. (2004). A new bipyrrole and some phenolic
constituents in prunes (Prunus domestica L.) and their oxygen
radical absorbance capacity (ORAC). Bioscience, Biotechnology,
and Biochemistry,68, 942–944.
Keast, D. R., O’Neil, C. E., & Jones, J. M. (2011). Dried fruit
consumption is associated with improved diet quality and
reduced obesity in US adults: National Health and Nutrition
Examination Survey, 1999-2004. Nutrition Research,31, 460–467.
Khanal, R. C., Rogers, T. J., Wilkes, S. E., Howard, L. R., & Prior, R. L.
(2010). Effects of dietary consumption of cranberry powder on
metabolic parameters in growing rats fed high fructose diets.
Food and Function,1, 116–123.
Kim, M. J., Chung, J. Y., Kim, J. H., & Kwak, H. K. (2013). Effects of
cranberry powder on biomarkers of oxidative stress and
glucose control in db/db mice. Nutrition Research and Practice,7,
430–438.
Kim, M. J., Ohn, J., Kim, J. H., & Kwak, H. K. (2011). Effects of
freeze-dried cranberry powder on serum lipids and
inflammatory markers in lipopolysaccharide treated rats fed
an atherogenic diet. Nutrition Research and Practice,5, 404–411.
Kim, Y., Hertzler, S. R., Byrne, H. K., & Mattern, C. O. (2008).
Raisins are a low to moderate glycaemic index food with a
correspondingly low insulin index. Nutrition Research,28, 304–
308.
Kuhnle, G. G. C., Dell’Aquila, C., Aspinall, S. M., Runswick, S. A.,
Joosen, A. M. C. P., Mulligan, A. A., & Bingham, S. A. (2009).
Phytoestrogen content of fruits and vegetables commonly
consumed in the UK based on LC-MS and 13C-labelled
standards. Food Chemistry,116, 542–554.
Kundu, J. K., & Surh, Y.-J. (2013). Cancer chemopreventive effects
of selected dried fruits. In C. Alasalvar & F. Shahidi (Eds.),
Dried fruits: Phytochemicals and health effects (pp. 19–51). Oxford:
Wiley-Blackwell.
Lavelli, V., & Vantaggi, C. (2009). Rate of antioxidant degradation
and color variations in dehydrated apples as related to water
activity. Journal of Agricultural and Food Chemistry,57, 4733–
4738.
Leontowicz, H., Leontowicz, M., Gorinstein, S., Martin-Belloso, O.,
& Trakhtenberg, S. (2007). Apple peels and pulp as a source of
bioactive compounds and their influence digestibility and
lipid profile in normal and atherogenic rats-in English.
Medycyna Weterynaryjna,63, 1434–1436.
Lever, E., Cole, J., Scott, S. M., Emery, P. W., & Whelan, K. (2014).
Systematic review:The effect of prunes on gastrointestinal
function. Alimentary Pharmacology and Therapeutics,40(7), 750–
758.
Li, F., Li, S., Li, H. B., Deng, G. F., Ling, W. H., Wu, S., Xu, X. R., &
Chen, F. (2013). Antiproliferative activity of peels, pulps and
seeds of 61 fruits. Journal of Functional Foods,5, 1298–1309.
Lichtenstein, A. H., Appel, L. J., Brands, M., Carnethon, M.,
Daniels, S., Franch, H. A., Franklin, B., Kris-Etherton, P., Harris,
W. S., Howard, B., Karanja, N., Lefevre, M., Rudel, L., Sacks, F.,
Van, H. L., Winston, M., & Wylie-Rosett, J. (2006). Diet and
lifestyle recommendations revision 2006: A scientific
statement from the American Heart Association Nutrition
Committee. Circulation,114, 82–96.
Liggins, J., Bluck, L. J. C., Runswick, S., Atkinson, C., Coward, W. A.,
& Bingham, S. A. (2000). Daidzein and genistein content of
fruits and nuts. Journal of Nutritional Biochemistry,11,
326–331.
Liu, R. H. (2003). Health benefits of fruit and vegetables are from
additive and synergistic combinations of phytochemicals.
American Journal of Clinical Nutrition,78, 517S–520S.
Lucas, E. A., Juma, S., Stoecker, B. J., & Arjmandi, B. H. (2000).
Prune suppresses ovariectomy-induced hypercholesterolemia
in rats. Journal of Nutritional Biochemistry,11, 255–259.
Luttfullah, G., & Hussain, A. (2011). Studies on contamination
level of aflatoxins in some dried fruits and nuts of Pakistan.
Food Control,22, 426–429.
Madrau, M. A., Piscopo, A., Sanguinetti, A. M., Del Caro, A.,
Poiana, M., Romeo, F. V., & Piga, A. (2009). Effect of drying
temperature on polyphenolic content and antioxidant activity
of apricots. European Food Research and Technology,228, 441–448.
Madrau, M. A., Sanguinetti, A., Del Caro, A., Fadda, C., & Piga, A.
(2010). Contribution of melanoidins to the antioxidant activity
of prunes. Journal of Food Quality,33, 155–170.
Marquez, A., Dueñas, M., Serratosa, M. P., & Merida, J. (2012).
Formation of vitisins and anthocyanin–flavanol adducts
during red grape drying. Journal of Agricultural and Food
Chemistry,60, 6866–6874.
Masood, M., Iqbal, S. Z., Asi, M. R., & Malik, N. (2015). Natural
occurrence of aflatoxins in dry fruits and edible nuts. Food
Control,55, 62–65.
Meng, J., Fang, Y., Zhang, A., Chen, S., Xu, T., Ren, Z., Han, G., Liu,
J., Li, H., Zhang, Z., & Wang, H. (2011). Phenolic content and
antioxidant capacity of Chinese raisins produced in Xinjiang
Province. Food Research International,44, 2830–2836.
Micali, S., Isgro, G., Bianchi, G., Miceli, N., Calapai, G., & Navarra,
M. (2014). Cranberry and recurrent cystitis: More than
marketing? Critical Reviews in Food Science and Nutrition,54,
1063–1075.
Miller, C. J., Dunn, E. V., & Hashim, I. B. (2003). The glycaemic
index of dates and date/yoghurt mixed meals. Are dates ‘the
candy that grows on trees? European Journal of Clinical
Nutrition,57, 427–430.
Mills, P. K., Beeson, W. L., Phillips, R. L., & Fraser, G. E. (1989).
Cohort study of diet, lifestyle, and prostate cancer in
Adventist men. Cancer,64, 598–604.
Namitha, K., & Negi, P. S. (2010). Chemistry and biotechnology of
carotenoids. Critical Reviews in Food Science and Nutrition,50,
728–760.
Neveu, V., Perez-Jiménez, J., Vos, F., Crespy, V., du Chaffaut, L.,
Mennen, L., Knox, C., Eisner, R., Cruz, J., Wishart, D., &
Scalbert, A. (2010). Phenol-Explorer: An online comprehensive
database on polyphenol contents in foods. Database (Oxford),
2010, bap024. doi:10.1093/database/bap024.
Osburn, W. N. (2009). Evaluation of dried plum powder in meat
products destined for convenience and foodservice outlets.
Pleasanton, CA: California Prune Board.
Ouchemoukh, S., Hachoud, S., Boudraham, H., Mokrani, A., &
Louaileche, H. (2012). Antioxidant activities of some dried
fruits consumed in Algeria. LWT-Food Science and Technology,
49, 329–332.
Palikova, I., Vostalova, J., Zdarilova, A., Svobodova, A., Kosina, P.,
Vecera, R., Stejskal, D., Proskova, J., Hrbac, J., Bednar, P., Maier,
V., Cernochova, D., Simanek, V., & Ulrichova, J. (2010). Long-
term effects of three commercial cranberry products on the
antioxidative status in rats: A pilot study. Journal of Agricultural
and Food Chemistry,58, 1672–1678.
Parker, T. L., Wang, X. H., Pazmiño, J., & Engeseth, N. J. (2007).
Antioxidant capacity and phenolic content of grapes, sun-
dried raisins, and golden raisins and their effect on ex vivo
serum antioxidant capacity. Journal of Agricultural and Food
Chemistry,55, 8472–8477.
Parlakpinar, H., Olmez, E., Acet, A., Ozturk, F., Tasdemir, S., Ates,
B., Gul, M., & Otlu, A. (2009). Beneficial effects of apricot-
feeding on myocardial ischemia-reperfusion injury in rats.
Food and Chemical Toxicology,47, 802–808.
130 Journal of Functional Foods 21 (2016) 113–132
Pasalar, M., & Lankarani, K. B. (2015). Letter: Prunes for the
treatment of constipation. Alimentary Pharmacology and
Therapeutics,41(2), 234.
Pasalar, M., Lankarani, K. B., Mehrabani, D., Tolide-ie, H. R., &
Nasri, M. (2013). The effect of Descureania sophia L. and Prunus
domestica L. in prevention of constipation among Iranian Hajj
pilgrims, Saudi Arabia. Research Journal of Pharmaceutical,
Biological and Chemical Sciences,4, 1195–1204.
Pelentir, N., Block, J., Monteiro Fritz, A. R., Reginatto, V., &
Amante, E. R. (2011). Production and chemical
characterization of peach (Prunus persica) kernel flour. Journal
of Food Process Engineering,34, 1253–1265.
Pellegrini, N., Serafini, M., Salvatore, S., Del Rio, D., Bianchi, M., &
Brighenti, F. (2006). Total antioxidant capacity of spices, dried
fruits, nuts, pulses, cereals, and sweets consumed in Italy
assessed by three different in vitro assays. Molecular Nutrition
and Food Research,50, 1030–1038.
Piga, A., Del Caro, A., & Corda, G. (2003). From plums to prunes:
Influence of drying parameters on polyphenols and
antioxidant activity. Journal of Agricultural and Food Chemistry,
51, 3675–3681.
Poluzzi, E., Piccinni, C., Raschi, E., Rampa, A., Recanatini, M., &
De Ponti, F. (2014). Phytoestrogens in postmenopause: The
state of the art from a chemical, pharmacological and
regulatory perspective. Current Medicinal Chemistry,21, 417–
436.
Prior, R. L., Rogers, T. R., Khanal, R. C., Wilkes, S. E., Wu, X., &
Howard, L. R. (2010).Urinary excretion of phenolic acids in
rats fed cranberry. Journal of Agricultural and Food Chemistry,58,
3940–3949.
Prior, R. L., Wu, X., & Gu, L. (2006). Identification and urinary
excretion of metabolites of 5-(hydroxymethyl)-2-furfural in
human subjects following consumption of dried plums or
dried plum juice. Journal of Agricultural and Food Chemistry,54,
3744–3749.
Puglisi, M. J., Mutungi, G., Brun, P. J., McGrane, M. M., Labonte, C.,
Volek, J. S., & Fernandez, M. L. (2009). Raisins and walking
alter appetite hormones and plasma lipids by modifications
in lipoprotein metabolism and up-regulation of the low-
density lipoprotein receptor. Metabolism: Clinical and
Experimental,58, 120–128.
Puglisi, M. J., Vaishnav, U., Shrestha, S., Torres-Gonzalez, M.,
Wood, R. J., Volek, J. S., & Fernandez, M. L. (2008). Raisins and
additional walking have distinct effects on plasma lipids and
inflammatory cytokines. Lipids in Health and Disease,7,
1–9.
Quideau, S., Deffieux, D., Douat-Casassus, C., & Pouységu, L.
(2011). Plant polyphenols: Chemical properties, biological
activities, and synthesis. Angewandte Chemie International
Edition,50, 586–621.
Rababah, T. M., Ereifej, K. I., & Howard, L. (2005). Effect of ascorbic
acid and dehydration on concentrations of total phenolics,
antioxidant capacity,anthocyanins, and color in fruits. Journal
of Agricultural and Food Chemistry,53, 4444–4447.
Rankin, J. W., Andreae, M. C., Oliver Chen, C. Y., & O’Keefe, S. F.
(2008). Effect of raisin consumption on oxidative stress and
inflammation in obesity. Diabetes, Obesity and Metabolism,10,
1086–1096.
Rawson, A., Patras, A., Tiwari, B. K., Noci, F., Koutchma, T., &
Brunton, N. (2011). Effect of thermal and non-thermal
processing technologies on the bioactive content of exotic
fruits and their products: Review of recent advances. Food
Research International,44, 1875–1887.
Rendina, E., Hembree, K. D., Davis, M. R., Marlow, D., Clarke, S. L.,
Halloran, B. P., Lucas, E. A., & Smith, B. J. (2013). Dried plum’s
unique capacity to reverse bone loss and alter bone
metabolism in postmenopausal osteoporosis model. PLoS
ONE,8, e60569.
Rendina, E., Lim, Y. F., Marlow, D., Wang, Y., Clarke, S. L.,
Kuvibidila, S., Lucas, E. A., & Smith, B. J. (2012). Dietary
supplementation with dried plum prevents ovariectomy-
induced bone loss while modulating the immune response in
C57BL/6J mice. Journal of Nutritional Biochemistry,23,
60–68.
Schmitzer, V., Slatnar, A., Mikulic-Petkovsek, M., Veberic, R.,
Krska, B., & Stampar,F. (2011). Comparative study of primary
and secondary metabolites in apricot (Prunus armeniaca L.)
cultivars. Journal of the Science of Food and Agriculture,91, 860–
866.
Schulze, B., Hubbermann, E. M., & Schwarz, K. (2014). Stability of
quercetin derivatives in vacuum impregnated apple slices
after drying (microwave vacuum drying, air drying, and freeze
drying) and storage. LWT-Food Science and Technology,57, 426–
433.
Sengupta, K., Alluri, K., Golakoti, T., Gottumukkala, G., Raavi, J.,
Kotchrlakota, L., Sigalan, S., Dey, D., Ghosh, S., & Chatterjee, A.
(2011). A randomized, double blind, controlled, dose
dependent clinical trial to evaluate the efficacy of a
proanthocyanidin standardized whole cranberry (Vaccinium
macrocarpon) powder on infections of the urinary tract. Current
Bioactive Compounds,7, 39–46.
Shahidi, F., & Tan, Z. (2013). Raisins: Processing, phytochemicals,
and health benefits. In C. Alasalvar & F. Shahidi (Eds.), Dried
fruits: Phytochemicals and health effects (pp. 372–392). Oxford:
Wiley-Blackwell.
Silva, L., Shahidi, F., & Coimbra, M. A. (2013). Dried pears:
Phytochemicals and potential health effects. In C. Alasalvar &
F. Shahidi (Eds.), Dried fruits: Phytochemicals and health effects
(pp. 325–356). Oxford: Wiley-Blackwell.
Simonavice, E., Liu, P. Y., Ilich, J. Z., Kim, J. S., Arjmandi, B., &
Panton, L. B. (2013). The effects of a 6-month resistance
training and dried plum consumption intervention on
strength, body composition, blood markers of bone turnover,
and inflammation in breast cancer survivors 1. Applied
Physiology, Nutrition, and Metabolism,39, 730–739.
Slatnar, A., Klancar, U., Stampar, F., & Veberic, R. (2011). Effect of
drying of figs (Ficus carica L.) on the contents of sugars,
organic acids, and phenolic compounds. Journal of Agricultural
and Food Chemistry,59, 11696–11702.
Slavin, J. L., & Lloyd, B. (2012). Health benefits of fruits and
vegetables. Advances in Nutrition,3, 506–516.
Spiller, G. A., Schultz, L., Spiller, M., & Ou, B. (2002). Sun-dried
raisins help prevent oxidative DNA damage during intense
athletic activity. Journal of the American College of Nutrition,21,
487.
Sun-Waterhouse, D. (2011). The development of fruit-based
functional foods targeting the health and wellness market: A
review. International Journal of Food Science and Technology,46,
899–920.
Thompson, L. U., Boucher, B. A., Liu, Z., Cotterchio, M., & Kreiger,
N. (2006). Phytoestrogen content of foods consumed in
Canada, including isoflavones, lignans, and coumestan.
Nutrition and Cancer,54, 184–201.
Threlfall, R., Morris, J., & Meullenet, J. F. (2007). Product
development and nutraceutical analysis to enhance the value
of dried fruit. Journal of Food Quality,30, 552–566.
Tomás-Barberán, F. A., & Andrés-Lacueva, C. (2012). Polyphenols
and health: Current state and progress. Journal of Agricultural
and Food Chemistry,60, 8773–8775.
Trucksess, M. W., & Scott, P. M. (2008). Mycotoxins in botanicals
and dried fruits: A review. Food Additives and Contaminants. Part
A: Chemistry,Analysis, Control, Exposure and Risk Assessments,
25, 181–192.
US Department of Health and Human Services. (2010). Dietary
guidelines for Americans (7th ed., p. 2010). Washington, DC: US
Department of Health and Human Services.
131Journal of Functional Foods 21 (2016) 113–132
USDA. (2004). USDA database for the proanthocyanidin content of
selected foods.http://www.ars.usda.gov/nutrientdata>
Accessed 30.03.15.
USDA. (2010). USDA database for the oxygen radical absorbance
capacity (ORAC) of selected foods, release 2.0.
<http://www.ars.usda.gov/nutrientdata>Accessed 25.09.14.
USDA. (2014). USDA national nutrient database for standard reference,
release 27.<http://www.ars.usda.gov/ba/bhnrc/ndl>Accessed
25.09.14.
Valentová, K., Stejskal, D., Bednár, P., Vostálová, J., Cíhalík, C.,
Vecˇerová, R., Koukalová, D., Kolár, M., Reichenbach, R.,
Sknˇ ourˇil, L., Ulrichová, J., & Šimánek, V. (2007). Biosafety,
antioxidant status, and metabolites in urine after
consumption of dried cranberry juice in healthy women: A
pilot double-blind placebo-controlled trial. Journal of
Agricultural and Food Chemistry,55, 3217–3224.
Vallejo, F., Marín, J. G., & Tomás-Barberán, F. A. (2012). Phenolic
compound content of fresh and dried figs (Ficus carica L.). Food
Chemistry,130, 485–492.
Van de Perre, E., Jacxsens, L., Lachat, C., ElTahan, F., & De
Meulenaer, B. (2015). Impact of maximum levels in European
legislation on exposure of mycotoxins in dried products: Case
of aflatoxin B1 and ochratoxin A in nuts and dried fruits.Food
and Chemical Toxicology,75, 112–117.
Vardi, N., Parlakpinar, H., Ates, B., Cetin, A., & Otlu, A. (2013). The
protective effects of Prunus armeniaca L. (apricot) against
methotrexate-induced oxidative damage and apoptosis in rat
kidney. Journal of Physiology and Biochemistry,69, 371–381.
Vasileiou, I., Katsargyris, A., Theocharis, S., & Giaginis, C. (2013).
Current clinical status on the preventive effects of cranberry
consumption against urinary tract infections. Nutrition
Research,33, 595–607.
Vayalil, P. K. (2012). Date fruits (Phoenix dactylifera Linn): An
emerging medicinal food. Critical Reviews in Food Science and
Nutrition,52, 249–271.
Villarino, M., Sandín-España, P., Melgarejo, P., & De Cal, A. (2011).
High chlorogenic and neochlorogenic acid levels in immature
peaches reduce Monilinia laxa infection by interfering with
fungal melanin biosynthesis. Journal of Agricultural and Food
Chemistry,59, 3205–3213.
Vinson, J. A., Zubik, L., Bose, P., Samman, N., & Proch, J. (2005).
Dried fruits: Excellent in vitro and in vivo antioxidants. Journal
of the American College of Nutrition,24, 44–50.
Vrhovsek, U., Rigo, A., Tonon, D., & Mattivi, F. (2004).
Quantitation of polyphenols in different apple varieties.
Journal of Agricultural and Food Chemistry,52,
6532–6538.
Williamson, G., & Carughi, A. (2010). Polyphenol content and
health benefits of raisins. Nutrition Research,30, 511–
519.
Wu, X., Beecher, G. R., Holden, J. M., Haytowitz, D. B., Gebhardt, S.
E., & Prior, R. L. (2004). Lipophilic and hydrophilic antioxidant
capacities of common foods in the United States. Journal of
Agricultural and Food Chemistry,52, 4026–4037.
Xiao, X., Kim, J., Sun, Q., Kim, D., Park, C. S., Lu, T. S., & Park, Y.
(2015). Preventive effects of cranberry products on
experimental colitis induced by dextran sulphate sodium in
mice. Food Chemistry,167, 438–446.
Yurt, B., & Celik, I. (2011). Hepatoprotective effect and antioxidant
role of sun, sulphited-dried apricot (Prunus armeniaca L.), and
its kernel against ethanol-induced oxidative stress in rats.
Food and Chemical Toxicology,49, 508–513.
Zhao, B., & Hall, C. A., III (2008). Composition and antioxidant
activity of raisin extract obtained from various solvents. Food
Chemistry,108, 511–518.
Zhu, M., Hu, J., Perez, E., Phillips, D., Kim, W., Ghaedian, R.,
Napora, J. K., & Zou, S. (2011). Effects of long-term cranberry
supplementation on endocrine pancreas in aging rats.
Journals of Gerontology Series A: Biological Sciences and Medical
Sciences,66, 1139–1151.
132 Journal of Functional Foods 21 (2016) 113–132