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African Journal of Pharmacy and Pharmacology Vol. 6(31), pp. 2332-2339, 22 August, 2012
Available online at http://www.academicjournals.org/AJPP
DOI: 10.5897/AJPP12.509
ISSN 1996-0816 ©2012 Academic Journals
Review
Phytochemistry and pharmacologic properties of
Ziziphus spina christi (L.) Willd.
Jinous Asgarpanah* and Elaheh Haghighat
Department of Pharmacognosy, Pharmaceutical Sciences Branch, Islamic Azad University (IAU), Tehran, Iran.
Accepted 12 June, 2012
Ziziphus spina-christi known as Christ's Thorn Jujube, is a native plant that grows in tropical and
subtropical regions especially in Middle East. Its extracts are important in drug development with
pharmacological activities in the Middle East and South and East of Asia including Iran. For a long time,
Z. spina-christi has been used in alternative medicine for the treatment of fever, pain, dandruff, wounds
and ulcers, inflammatory conditions, asthma and to cure eye diseases. Z. spina-christi has recently
been shown to have antibacterial, antifungal, antioxidant, anti-hyperglycemic, and antinociceptive
activities. Flavonoids, alkaloids and saponins are the main phytochemicals that are reported from this
plant. Geranyl acetone, methyl hexadecanoate, methyl octadecanoate, farnesyl acetone C, hexadecanol
and ethyl octadecanoate are characterized as the major components of the leaves’ volatile oil. Due to
the easy collection of the plant materials, its being cheap and widespread in many countries and also
remarkable biological activities, this plant has become both medicine and food in some parts of the
world, especially throughout the Middle East including Iran. This paper presents comprehensive
analyzed information on the botanical, chemical and pharmacological aspects of Z. spina-christi.
Key words: Ziziphus spina-christi, rhamnaceae, pharmacology, phytochemistry.
INTRODUCTION
Ziziphus spina-christi commonly known as Christ's Thorn
Jujube, is a deciduous tree and native to the warm-
temperate and subtropical regions, including North Africa,
South Europe, Mediterranean, Australia, tropical
America, South and East of Asia and Middle East (Yossef
et al., 2011). It belongs to the Rhamnaceae family in the
order of Rosales that contains about 60 genera and more
than 850 species. The genus Ziziphus consists of about
100 species of deciduous or evergreen trees and shrubs
throughout the world (Abalaka et al., 2010). Z. spina-
christi has been among the key plants of the Iranian
traditional medicine since ancient times and is indigenous
and naturalized throughout Iran (Solati and Soleimani,
2010). It has been known as “Sedr” in Iran and wildly
distributed in East, South, North-East and central parts of
*Corresponding author. E-mail: asgarpanah@iaups.ac.ir. Tel:
22640051. Fax: 22602059.
Iran (Salehi, 2010).
Z. spina-christi is a shrub, sometimes a tall tree,
reaching a height of 20 m and a diameter of 60 cm; its
bark is light-grey, very cracked, scaly; trunk twisted; very
branched, crown thick; shoots whitish, flexible, drooping;
thorns in pairs, one straight, the other curved (Figure 1).
Its leaves are glabrous on upper surface, finely
pubescent below, ovate-lanceolate or ellipsoid, apex
acute or obtuse, margins almost entire, lateral veins
conspicuous (Figure 2). Flowers in cymes, subsessile,
peduncle 1 to 3 mm (Figure 3). Fruit about 1 cm in
diameter (Figure 4) (Zargari, 1988). Z. spina-christi has
very nutritious fruits that are usually eaten fresh. The
flowers are important source for honey in Yemen and
Eritrea (Adzu and Haruna, 2007). The fruits are applied
on cuts and ulcers. They are also used to treat pulmonary
ailments and fevers and to promote the healing of fresh
wounds, for dysentery (Abalaka et al., 2010).
For a long time, in folklore medicine, Z. vulgaris has
been used for the treatment of some diseases, such as
Asgarpanah and Haghighat 2333
Figure 1. Ziziphus spina-christi L.
Figure 2. The leaves of Z. spina-christi.
digestive disorders, weakness, liver complaints, obesity,
urinary troubles, diabetes, skin infections, loss of
appetite, fever, pharyngitis, bronchitis, anemia, diarrhea,
and insomnia (Han and Park, 1986; Kirtikar and Basu,
1984). The leaves are applied locally to sores, and the
roots are used to cure and prevent skin diseases (Adzu
et al., 2001). The seeds are sedative and are taken
sometime with buttermilk to halt nausea, vomiting and
abdominal pains associated with pregnancy (Kaaria,
1998). The leaves are applied as poultices and are
2334 Afr. J. Pharm. Pharmacol.
Figure 3. Z. spina-christi flower.
Figure 4. The fruits of Z. spina-christi.
helpful in liver troubles, asthma and fever (Michel, 2002).
Z. spina-christi extract has also been reported to possess
protective effect against aflatoxicosis (Abdel-Wahhab et
al., 2007) and anti-conceptive properties in the rat and
have a calming effect on the central nervous system.
Flavonoids, alkaloids, triterpenoids, saponins, lipids,
Asgarpanah and Haghighat 2335
Figure 5. Molecular structure of christinin-A, the major components of Z. spina-christi leaves.
proteins, free sugar and mucilage are the main important
compounds characterized in this plant (Adzu et al., 2003).
Plant materials are cheap and significantly contribute to
the improvement of human health in terms of cure and
prevention of diseases (Okoko and Oruambo, 2008).
Plants have been useful as food and medicine and a few
have been studied especially African medicinal plants
(Abalaka et al., 2010). They contain vitamins needed by
human body for healthy living (Szeto et al., 2002; Jimoh
et al., 2008). From current pharmaceutical studies,
additional pharmaceutical applications of Z. spina-christi
have revealed antifungal, antibacterial, antinociceptive,
antioxidant, antidiabetic, antiplasmodial, anti-
schistosomiasis, analgesic and anticonvulsant activities
among others (Adamu et al., 2006; El-Kamali and
Mahjoub, 2009; Adzu et al., 2001, 2011; Abalaka et al.,
2011; Abdel-Zaher et al., 2005; El-Rigal et al., 2006;
Adzu and Haruna, 2007; Waggas and Al-Hasani 2010).
Since a review and systemic analysis of chemistry,
pharmacology and clinical properties of Z. spina-christi
have not been reported, we prompted to provide the
currently available information on traditional and local
knowledge, ethnobiological and ethnomedicinal issues,
identification of pharmacologically important molecules
and pharmacological studies on this useful plant. The aim
of this paper is to introduce Z. spina-christi as a potent
medicinal plant by highlighting its traditional applications,
as well as the recent findings for novel pharmacological
and clinical applications.
CHEMICAL COMPOSITION
A survey of the literature revealed that a number of
cyclopeptide and isoquinoline alkaloids, flavonoids,
terpenoids and their glycosides have been found to occur
in various amounts in most Ziziphus species. The leaves
of these plants contain betulinic and ceanothic acids,
various flavonoids, saponins, erols, tannins and
triterpenes (Ali and Hamed, 2006; Glombitza et al.,
1994). The extract of Z. spina-christi was shown to
contain butic acid and ceanothic acid (a ring-A
homologue of betulinic acid), cyclopeptides, as well as
saponin glycoside and flavonoids, lipids, protein, free
sugar and mucilage (Adzu et al., 2003). Cardiac
glycosides and polyphenols (such as tannins) are also
reported from the leaves (Abalaka et al., 2010).
Geranyl acetate (14.0%), methyl hexadecanoate
(10.0%), methyl octadecanoate (9.9%), farnesyl acetone
C (9.9%), hexadecanol (9.7%) and ethyl octadecanoate
(8.0%) were characterized as the main components of Z.
spina-christi leaves essential oil (Ghannadi et al., 2002).
Zizyphine-F, jubanine-A and amphibine-H and a new
peptide alkaloid spinanine-A have been isolated from the
stem bark of Z. spina-christi. Spinanine-A is a 14-
membered cyclopeptide alkaloid of the amphibine-B type
(Fathy et al., 1990). Christinin-A is the major saponin of
the leaves (Patel et al., 2012) (Figure 5).
Dodecaacetylprodelphinidin B3 has been also isolated
from the leaves (Weinges and Schick, 1995). New
flavonoid, quercetin 3-xylosyl(1→2)rhamnoside-4′-
rhamnoside (Pawlowska et al., 2008) accompanying with
rutin, hyperin, quercetin, apigenin-7-O-glucoide, isovitexin
and quercetin-3-O lucoside-7-O-rhamnoside were
characterized from Z. spina-christi fruits. A flavonoid, C-
glycoside, 3′,5′-di-C-β-d-glucosylphloretin, was also
identified in Z. spina-christi leaves (Nawwar et al., 1983).
In addition, 4-hydroxymethyl-1-methyl pyrrolidine-2-
carboxylic acid and 4-hydroxy-4-hydroxymethyl-1-methyl
pyrrolidine-2-carboxylic acid were characterized as two
2336 Afr. J. Pharm. Pharmacol.
new cyclic amino acids from Z. spina-christi seeds (Said
et al., 2010).
POTENTIALS OF Z. SPINA-CHRISTI
A tropical evergreen tree of many parts of Iran, it is
cultivated mainly as a dry crop for its mucilage nutritious
fruits, honey production and landscaping purposes. It
serves the ecosystem by controlling erosion, acting as
wind break and it improves soil quality by increasing
available phosphorus. Traditionally, it is used in Iran as a
medicinal plant; the fruits are used for the treatment of
fever, pain, dandruff, wounds and ulcers, in inflammatory
conditions, asthma and to cure eye diseases, while the
seeds are used as a tonic (Shah et al., 1989; Adzu and
Haruna, 2007). Extracts from the plant could be useful in
the treatment of nosocomial infections, opportunistic
infection of the unary tract, infantile gastroenteritis,
traveler‟s diarrhea, wound infection, meningitis, and
wounds infection which are diseases caused by some of
these organisms (Adzu and Haruna, 2007). Additionally,
Z. spina-christi fruit extract causes neurotransmitters
release, which is probably related to presence of ascorbic
acid and the leaves may potentially be safe for use as
sedative drug (Waggas and Al-Hasani 2010). A variable
activity of the plant extract is against Staphylococcus
aureus which highly infects various burns (Alsaimary,
2009).
Moreover, the methanol extract of Sidir could be used
not only as a safe potential natural functional food
ingredient or as therapeutic drug in the treatment of
diabetes, but also it is effective in reducing both
hyperlipidemia and oxidative stress accompanying
diabetes (Hussein et al., 2006; Sudhersan and Hussain,
2003). It easily domesticated and can be grown
commercially for the benefit of pharmaceutical industry
and vegetation purposes.
Antibacterial and antifungal properties
The aqueous extract of Z. spina-christi stem bark has
shown significant antibacterial activity against S. aureus,
Bacillus subtilis, Escherichia coli, Proteus vulgaris,
Pseudomonas aeruginosa, Salmonella para typhi B and
Klebsiella pneumonia (El-Kamali and Mahjoub, 2009). Z.
spina-christi stem bark aqueous extract has shown highly
significant antibacterial effect activity on some Gram
negative bacterial growth including Brucella abortus,
Brucella melitensis, Proteus spp., Klebsiella spp., P.
aeruginosa, E. coli and Enterobacter spp. in comparison
with eight antibiotics (Korji, 2012). Alcoholic extract of the
leaves has also shown good antibacterial activity against
S. aureus isolated from eye infections (conjunctivitis). An
inhibition zone of 20 mm was recorded for 1 mg/ml of the
extract (Alsaimary, 2012). Additionally, the leaves were
active against Salmonella typhi, Proteus mirabilis,
Shigella dysenteriae, E. coli, K. pneumonia, B. melitensis,
Bordetella bronchiseptica and P. aeruginosa. The highest
activity (20 mm) was against B. bronchiseptica
byconcentration of 100 mg/ml (Motamedi et al., 2009)The
pulp aqueous extract of Z. spina-christi also showed
inhibitory activity on E. coli, P. aeruginosa and Candida
albicans in vivo. The extract showed MIC of 6.25 mg/ml
against E. coli and C. albicans. The minimum bactericidal
concentration of the pulp aqueous extract was 12.5mg/ml
for Streptococcus pyogenes (Tom et al., 2009). Methanol
extract of Z. spina-christi roots showed antifungal activity
against dermatophytes, including Trichophyton rubrum,
T. mentagaphytes, Microsporum canis and Aspergillus
fumigatus (Adamu et al., 2006). The fruits were also
active against C. albicans (Ghasemi Pirbalouti et al.,
2009).
As shown by these results, the extracts from Z. spina-
christi could be useful in the treatment of nosocomial
infections, opportunistic infection of the unary tract (UTI),
infantile gastroenteritis, travelers‟ diarrhea, wound
infection, meningitis and wounds infection which are
diseases caused by some of these organisms.
Antinociceptive effects
The antinociceptive effect of the aqueous extract of Z.
spina-christi root bark was shown in mice and rats by
acetic acid-induced writhing, formalin and thermal (hot
plate) tests. The extract (50 and 100 mg/kg, i.p.)
demonstrated a dose-dependent analgesic effect in all
the tests used. Its i.p. LD50 in mice was 2236.07 mg/kg
(Adzu et al., 2001). The aqueous extract of the leaves
were also active. The extract (250-1000 mg kg-1) in a
dose-dependent fashion significantly reduced the number
of writhes induced by 0.6% aqueous solution of acetic
acid in Wistar rats. At a dose of 250 mg/kg, the extract
produced comparable effect to that of 10 mg/kg of
pethidine hydrochloride in suppressing the number of
writhing induced by acetic acid (Effraim et al., 1998).
Antioxidant activity
An antioxidant is defined as „any substance that, when
present at low concentrations compared to those of an
oxidizable substrate, significantly delays or prevents
oxidation of that substrate‟ (Rhee et al., 2009; Wiseman
et al., 1997; Mates et al., 1999). Antioxidants are of
interest to biologists and clinicians because they help to
protect the human body against damages induced by
reactive free radicals generated in atherosclerosis,
ischemic heart disease, cancer, Alzheimer's disease,
Parkinson's disease and even in aging process (Aruoma,
2003; Hemati et al., 2010). There are many evidences
that natural products and their derivatives have efficient
anti-oxidative characteristics, consequently linked to anti-
cancer, hypolipidemic, anti-aging and anti-inflammatory
activities (Rhee et al., 2009; Wiseman et al., 1997; Hogg,
1998; Mates et al., 1999; Aruoma, 2003; Cho et al.,
2006).
The anti-oxidative capacities of ethanol and petroleum
ether extracts of Z. spina-christi leaves were evaluated by
hydroxyl radical, 1,1-diphenyl-2-picrylhydrazyl (DPPH)
radical, lipid peroxidation and superoxide radical
standardization methods (Abalaka et al., 2011). The EC50
values for hydroxyl radical with ethanol and hexane
extract of Z. spina-christi were found to be 198.34 and
234.11 μg, while that of ascorbic acid was found to be
219.31 μg. The EC50 values for the two plant extracts
were ethanol 101.02 μg and hexane 124.21 μg. These
results compare favorably with that of standard ascorbic
acid which had the EC50 value of 78.12. Moreover, the
EC50 values for lipid peroxidation with ethanol extract and
hexane extract of Z. spina-christi were 298.65 and 376.35
μg, while that of ascorbic acid was 191.42 μg. The EC50
value for superoxide radical scavenging with ethanol and
hexane extract of Z. spina-christi were 156.45 and 265.22
μg, while that of ascorbic acid was 138.26 μg (Abalaka et
al., 2011). These activities indicate that the extracts from
Z. spina-christi are good antioxidants.
It was also indicated that the fruits contained high level
of total phenolic compounds (7.55mg /g as gallic acid)
(Yossef et al., 2011). The fruit administration inhibited
lipid peroxidation at higher level after CCL4 treatment.
Interestingly, the methanolic extract of these fruits with
dose of 200 mg/kg was able to increase the activities of
endogenous antioxidant enzymes (superoxide dismutase
(SOD), catalase (CAT) and glutathione peroxidase (GSH-
Px)) and levels of GSH in hepatic tissue. The fruits
extract pretreatment demonstrated to inhibit
malondialdehyde (MDA) of the reactive oxygen radical
production (Xiangchun et al., 2009).
Antidiabetic properties
Pretreatment either with 100 mg/kg butanol extracts of
the leaves or christinin-A, the major saponin glycoside of
the leaves, potentiated glucose-induced insulin release in
non-diabetic control rats. In type-II but not in type-I
diabetic rats, pretreatment with the butanol extract or
christinin-A improved the oral glucose tolerance and
potentiated glucose-induced insulin release. Treatment
either with 100 mg/kg butanol extract or christinin-A
reduced the serum glucose level and increased the
serum insulin level of non-diabetic control and type-II
diabetic rats but not of type-I diabetic rats. Pretreatment
of non-diabetic control and type-II diabetic rats either with
100 mg/kg butanol extract or christinin-A also enhanced
the glucose lowering and insulinotropic effect of 5 g/kg
glibenclamide. The hyperglycemic and hypoinsulinemic
effects of 30 mg/kg diazoxide in non-diabetic control and
Asgarpanah and Haghighat 2337
type-II diabetic rats were inhibited and antagonized,
respectively by pretreatment with the butanol extract or
christinin-A. Treatment of rats with 100 mg/kg butanol
extract for 3 months produced no functional or structural
disturbances in liver and kidney and no haematological
changes. In addition, the oral LD50 of the butanol extract
in mice was 3820 mg/kg, while that of glibenclamide was
3160 mg/kg. Thus, Z. spina-christi leaves appear to be a
safe alternative to lower blood glucose. The safe
insulinotropic and subsequent hypoglycemic effects of Z.
spina-christi leaves may be due to a sulfonylurea-like
activity (Abdel-Zaher et al., 2005).
Oral administration of Z. spina-christi leaf extract, plain
and formulated for 28 days, reduced blood glucose level
with significant increase in serum insulin and C-peptide
levels. Marked elevation in total antioxidant capacity with
normalization of percentage of glycated hemoglobin
(HbA1C%) was reported. Moreover, they succeeded in
reducing the elevated blood lactate level and to elevate
the reduced blood pyruvate content of diabetic rats. In
line with amelioration of the diabetic state, the extract,
plain and formulated, restored liver and muscle glycogen
content together with significant decrease of hepatic
glucose-6-phosphatase and increase in glucose-6-
phosphate dehydrogenase activities. In vitro experiments
showed a dose-dependent inhibitory activity of the extract
against α-amylase enzyme with IC50 at 0.3 mg/ml. Such
finding has been supported by the in vivo suppression of
starch digestion and absorption by the extract in normal
rats. The results revealed that Z. spina-christi leaf extract
improved glucose utilization in diabetic rats by increasing
insulin secretion, which may be due to both saponin and
polyphenols content, and controlling hyperglycemia
through attenuation of meal-derived glucose absorption
that might be attributed to the total polyphenols (Michel et
al., 2011).
CONCLUSION
The objective of this paper has been to show the recent
advances in the exploration of Z. spina-christi as
phytotherapy and to illustrate its potential as a
therapeutic agent. With the current information, it is
evident that Z. spina-christi has pharmacological
functions, including antihyperglycemic, antibacterial,
antifungal, antioxidant and antinociceptive activities,
among others. As the current information shows, it is also
possible that various flavonoids and saponin glycosides
such as christinin-A might be useful in the development
of new drugs to treat various diseases. It must be kept in
mind that clinicians should remain cautious until more
definitive studies demonstrate the safety, quality and
efficacy of Z. spina-christi. For these reasons, extensive
pharmacological and chemical experiments, together with
human metabolism will be a focus for future studies. Last
but not the least, this article emphasizes the potential of
2338 Afr. J. Pharm. Pharmacol.
Z. spina-christi to be employed in new therapeutic drugs
and provide the basis for future research on the
application of transitional medicinal plants.
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