Daniel Valero

Daniel Valero
Universidad Miguel Hernández de Elche | UMH · Department Agro-food Technology

PhD

About

245
Publications
104,609
Reads
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11,928
Citations
Citations since 2016
87 Research Items
6990 Citations
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201620172018201920202021202202004006008001,0001,200
201620172018201920202021202202004006008001,0001,200
Additional affiliations
October 1997 - present
Universidad Miguel Hernández de Elche
Position
  • Head of Post-Harvest Group
October 1996 - present
Universidad Miguel Hernández de Elche
Position
  • Professor (Full)
January 1994 - December 1995
University of Bristol
Position
  • PostDoc Position

Publications

Publications (245)
Article
In this study, postharvest treatment with glycine betaine (GB) was performed in order to reduce chilling injury (CI) of blood orange cv. Moro at 3°C for 90 days. Vacuum infiltration of GB was applied at 15 and 30 mM at 30 kPa for 8 min. Parameters were evaluated after 1, 30, 60, and 90 days of storage plus 2 days at 20°C to simulate shelf life cond...
Article
Anthocyanin concentration is considered an important fruit quality index of blood oranges and has gained popularity among consumers due to its antioxidant capacity, therapeutic properties, and prevention of some human diseases. Anthocyanin biosynthesis occurs in the cytoplasmic face of the endoplasmic reticulum by multi-enzymes complexes through th...
Article
Full-text available
Exogenous application of glycine betaine (GB) was evaluated on bioactive compounds, antioxidant activity, and physicochemical attributes of blood orange fruit cv. Moro at 3°C for 90 days. Vacuum infiltration (30 kPa) of GB was applied at 15 and 30 mM for 8 min. Parameters were measured after 1, 30, 60, and 90 days of storage plus 2 days at 20°C to...
Article
Full-text available
Melatonin has been reported to have an important role in fruit ripening, although the effect of pre-harvest melatonin treatment on sweet cherry quality properties during storage is still unknown. In the present experiments, the effects of melatonin (0.1, 0.3, and 0.5 Mm) by foliar spray treatments of ‘Prime Giant’ and ‘Sweet Heart’ sweet cherry tre...
Article
Artichoke is one of the vegetables with higher content in phenolic compounds, which are responsible for their taste, flavor and health beneficial effects. However, phenolic profile and concentration depends on many factors, such as genotype, harvest date, and environmental and agronomical conditions. The main aim of this study was to perform a phyt...
Article
Full-text available
Melatonin (MT) treatment (100 µM, 2 h) was applied to four mango fruit cultivars (‘Langra’, ‘Chaunsa’, ‘Dashehari’, and ‘Gulab Jamun’), before being stored at 5 ± 1 °C for 28 d, in order to alleviate chilling injury (CI). Maximum CI reduction was observed in ‘Langra’ mangoes, and minimum in ‘Gulab Jamun’ mangoes. This positive effect on quality pre...
Article
The marketability of cut flowers is directly affected by their vase life, which determines acceptability for commercial purposes. In carnations and other species of cut flowers, corolla is one of the most affected parts during flower senescence due to the petal withering which is accelerated by metabolic processes occurring after separation from th...
Article
Full-text available
The effects of preharvest melatonin treatment, applied as foliar spray at 0.1, 0.3 and 0.5 mM concentration at three key points of fruit development (pit hardening, initial colour changes and 3 days before harvesting), on crop yield and fruit quality properties at harvest was evaluated in three sweet cherry cultivars, ‘Prime Giant’, ‘Lapins’ and ‘S...
Article
Full-text available
The effect of oxalic acid (OA) in determining poorly coloured table grape quality remains relatively unknown. Some red cultivars, such as seedless table grape ‘Magenta’ are characterised by a poor berry colour, an attribute highly demanded by the consumer. The aim of this research was to elucidate the effect of a preharvest OA treatment (5 mM) on b...
Article
Full-text available
Changes in physicochemical traits, peel colour, and juice attributes of four blood orange cultivars (‘Moro’, ‘Tarocco’, ‘Sanguinello’, and ‘Sanguine’) were evaluated during 180 days at 2 and 5 °C plus 2 days at 20 °C for shelf life. ‘Tarocco’ had the lowest weight and firmness losses at both temperatures during storage. Titratable acidity (TA) at 5...
Article
Fatty acid composition in the peel of four blood orange cultivars (‘Moro’, ‘Tarocco’, ‘Sanguinello’, and ‘Sanguine’) was identified and quantified by gas chromatography-mass spectrometry (GC-MS), in order to find its correlation with chilling susceptibility at harvest time and after 180 days of storage at 2 and 5 °C (2 days at 20 °C for shelf life)...
Article
Full-text available
Lemon trees (Citrus limon (L.) Burm. F) were treated monthly with oxalic acid (OA) at 0.1, 0.5, and 1 mM from initial fruit growth on the tree until harvest in2019. The experiment was repeated in 2020, with the application of OA 1 mM (according to the best results of 2019). In both years, fruit from OA-treated trees and the controls were stored for...
Article
Full-text available
The effect of melatonin pomegranate tree treatments on fruit quality and bioactive compounds with antioxidant activity at harvest and during storage at 10 °C for 60 days was assayed in two consecutive years, 2019 and 2020. In the first year, trees were treated with 0.1, 0.3 and 0.5 mM of melatonin along the developmental fruit growth cycle, and res...
Article
Full-text available
The effects of preharvest melatonin treatment on apricot crop yield and fruit quality properties at harvest and during storage have not yet been investigated. Apricot trees, of the ‘Colorado’ and ‘Mikado’ cultivars, were sprayed with 0.1 mM melatonin at three key points of fruit development. Fruit were harvested at commercial ripening stage and yie...
Article
Full-text available
With the aim to study the effect of melatonin treatment of pomegranate trees on crop yield and fruit quality at harvest and during storage, two experiments were carried out in two consecutive years: 2017 and 2018. In the first year, trees were treated with melatonin (at 0.1 and 1 mM) along the developmental growth cycle and fruit quality parameters...
Article
Full-text available
Blood oranges (Citrus sinensis L. Osbeck cv. Sanguinello) fruit were treated with 24-epibrassinolide (Br) at 1, 5, and 10 μM previous to storage at 5°C during 42 days. The samples were analyzed after 14, 28, and 42 days plus 2 days at 20°C. Chilling injury was reduced in Br-treated fruit based on the lower percentage of electrolyte leakage and visu...
Article
Beer is a popular fermented beverage made, basically, by water, malted cereals, yeasts, and hops. However, the actual market demands innovative beers with new nutritional and organoleptic properties, achieved, for instance, by the addition of functional ingredients. In this hallmark, the objective of this work was to elaborate a new beer enriched w...
Article
Full-text available
Cactus pear (Opuntia ficus-indica (L.) Mill.) fruit from ‘Orito’ cultivar were stored at 2 °C and 90% RH for 28 days plus three days at 20 °C (shelf life, SL). This research analysed the changes in fruit quality parameters (weight loss, firmness, color, titratable acidity, and total soluble solids), ethylene production, respiration rate, antioxidan...
Article
Full-text available
The aim of this work was to study the composition of aroma volatile compounds (AVCs) of blood orange cv. Moro treated with γ-aminobutyric acid (GABA), methyl jasmonate (MeJA) or methyl salicylate (MeSA) by headspace gas chromatography-mass spectrometry (HS-GC-MS). GABA at 20 and 40 mM was vacuum infiltrated (at 30 kPa for 8 min), and MeJA or MeSA a...
Article
Full-text available
Susceptibility of four blood orange cultivars (‘Moro’, ‘Tarocco’, ‘Sanguinello’ and ‘Sanguine’) to chilling injury (CI) was studied. Antioxidant enzymes as well as physiological and biochemical changes were measured monthly at 2 and 5 °C plus 2 days at 20 °C for shelf life. At 2 °C, CI symptoms were higher than at 5 °C, and ‘Moro’ and ‘Tarocco’ had...
Article
Full-text available
Information about the postharvest physiological behavior of blood orange cultivars can provide comprehensive insight into the best period of storage to maintain the highest fruit quality during prolonged cold storage. In this paper, changes in nutritional quality, bioactive compounds, and antioxidant enzymes in the juice of four blood orange cultiv...
Article
Full-text available
The effects of oxalic acid (OA) applied in preharvest on pomegranate crop yield and quality properties have not yet been investigated. Pomegranate trees were treated with OA at 1, 5, and 10 mM along the developmental growth cycle during 2016, from full blossom until harvest, and the fruit diameter was recorded monthly. The yield was significantly h...
Article
Full-text available
Consumers demand the use of eco-friendly fungicides to treat fruit and vegetables and governmental authorities have unauthorized the application of chemical antifungals for the efficient control of sour rot. In the present research, the microwave irradiation (MW) method was used to encapsulate thymol into 2-hydroxylpropyl-beta-cyclodextrin (HP-β-CD...
Article
The effects of preharvest treatments with 0.1 mM methyl jasmonate (MeJA) and 0.5 mM salicylic acid (SA) on quality parameters of lemon fruit and their relationship with antioxidant systems, gene expression and bioactive compounds at harvest and during cold storage were evaluated. Results showed that total antioxidant activity, total phenolic conten...
Preprint
Susceptibility of four blood orange cultivars (‘Moro’, ‘Tarocco’, ‘Sanguinello’ and ‘Sanguine’) to chilling injury (CI) was studied. Antioxidant enzymes, physiological and biochemical changes were measured monthly at 2 and 5 °C plus 2 days at 20 °C for shelf life. At 2 °C, CI symptoms were higher than at 5 °C, and ‘Moro’ and ‘Tarocco’ had significa...
Preprint
The changes in nutritional quality, bioactive compounds and antioxidant enzymes in the juice of four blood orange cultivars (‘Moro’, ‘Tarocco’, ‘Sanguinello’ and ‘Sanguine’) stored during 6 months at 2 and 5 °C plus 2 days at 20 °C for shelf life were studied. Sucrose was the sugar found at higher concentration and decreased during storage for all...
Article
Full-text available
Previous reports reported on the effectiveness of preharvest salicylic acid (SA) treatment on increasing fruit quality properties although no information is available about acetyl salicylic acid (ASA) and methyl salicylate (MeSa) treatments. Thus, SA, ASA and MeSa were applied at 1, 5, and 10 mM in 2016 and at 1, 0.1 and 0.01 mM in 2017 to vines of...
Article
In the present research the effects of preharvest 5 mM methyl jasmonate (MeJa) treatments, alone (Pre) or in combination with postharvest 5 mM MeJa treatment (Pre + Post), on reducing chilling injury (CI) of pomegranate during 90 d of storage at 2 °C plus 3 d at 20 °C and its relationship with changes in fatty acid composition of cell membranes wer...
Article
Full-text available
In the present research two experiments were performed to evaluate the effect of pre-harvest salicylic acid (SA), acetyl salicylic acid (ASA), and methyl salicylate (MeSa), applied as a foliar spray to pomegranate “Mollar de Elche,” on crop yield, fruit quality parameters, and bioactive compounds at harvest and during storage. In the 2017 experimen...
Article
The main goal of this study was to describe impact of preharvest application of methyl salicylate (MeSA), acetyl salicylic acid (ASA) and salicylic acid (SA) on the reduction of disease caused by Botrytis cinerea in two table grape cultivars (‘Crimson’ and ‘Magenta’). Based on previous studies, MeSA and SA were applied at 0.1 and 0.01 mM for both c...
Article
The effects of postharvest treatments with γ-aminobutyric acid (GABA), methyl jasmonate (MeJA) or methyl salicylate (MeSA) on antioxidant systems and sensory quality of blood oranges during cold storage were evaluated (150 days at 3 °C plus 2 days at 20 °C, shelf life). Fruit firmness, titratable acidity (TA), total antioxidant activity (TAA) and a...
Article
Jujube fruits cv 'Phoenix' were stored in modified atmosphere packaging (MAP) using a polyester (12 μm)-polypropylene (60 μm) film at 5 °C and 90% RH during 49 days. Jujube fruits stored without packaging and in normal air and same temperature and RH served as control. The atmosphere composition at the steady state was at 35 days with 14.50 kPa O2...
Article
In the present research the effect of rosehip oil (RO) coating on postharvest ripening process and fruit quality parameters of `President´ and `Royal Rosa´ plums was evaluated. Results show that the ethylene production was significantly reduced in coated plums with respect to controls either during storage at 20 ᵒC or at 2 ᵒC + 2 d at 20 ᵒC, as wel...
Article
Background: Previous reports have addressed the effectiveness of postharvest methyl jasmonate (MeJA) treatments on maintaining quality properties of pomegranate fruit during storage. However, there is no literature regarding the effects of preharvest MeJA treatments on pomegranate 'Mollar de Elche' crop yield, fruit ripening, quality attributes an...
Article
Background: Blood orange is sensitive to chilling injury (CI) depending on cultivar and storage temperature. Postharvest treatments with γ-aminobutyric acid (GABA), methyl jasmonate (MeJA) or methyl salicylate (MeSA) are known to alleviate CI. GABA aqueous solution, applied at 20 and 40 mM, was vacuum-infiltrated at 30 kPa for 8 min at 20°C. MeJA...
Article
Geotrichum citri‐aurantii causes sour rot in citrus fruits and is responsible for important economic losses during storage. However, the availability of chemical fungicides for the control of this pathogen is limited. Thus, the aim of this research was to evaluate the antifungal efficacy of thymol and carvacrol encapsulated in 2‐hydroxylpropyl‐beta...
Article
BACKGROUND Jasmonic acid (JA) and its volatile derivative methyl jasmonate (MeJA) are hormones involved in regulating many processes in plants, and it has been reported their effect (applied as post‐ or pre‐harvest treatment) on increasing fruit bioactive compounds with antioxidant potential. However, there is no literature regarding the effect of...
Article
Drought and cold temperature as the most important abiotic factors reduce the agricultural productivity in the world. In this research, the influence of irrigation levels on biochemical changes and cold hardiness of two commercial Iranian pomegranate cultivars ('Shishecap' and 'Malas-Yazdi') investigated during 2016 and 2017. A factorial experiment...
Article
In the present research the effect of preharvest metyil jasmonate (MeJA) treatment on the ripening process and fruit quality parameters at harvest was evaluated, for the first time, in two table grape cultivars, ‘Magenta’ and ‘Crimson’ during two years, 2016 and 2017. MeJA treatments (applied when berry volume was ca. 40% of its final one, at verai...
Article
Full-text available
Almond trees are very sensitive to salinity, and saline water is the only alternative for irrigation in many semiarid regions. Thus, the use of salt-tolerant rootstocks may allow an economically-feasible yield under saline irrigation. In this study, we evaluated the effects of chloride salts on plant secondary metabolites in red-and green-leaf almo...
Article
BACKGROUND Plums are very appreciated by consumers as fresh fruit but have a limited storage life. Since reactive oxygen species (ROS) are associated to fruit ripening, an increase on ROS scavenging antioxidant systems could lead to a delay on the postharvest plum ripening and to maintain fruit quality after long cold storage. RESULTS Results show...
Chapter
Polyamines are natural compounds involved in many growth and developmental processes with ubiquitous presence in all cells. Research in fruits has been developed to get a better understanding of the role of polyamines, both endogenous and exogenous, especially during the ripening and senescence processes. However, in recent years and given the rela...
Article
Aloe, eugenol and thymol were combined in package for improving the quality and bioactive components of tomato during storage. Packaged tomatoes with these compounds were stored at 10±1°C and 85±5% R.H. for 16 days and lycopene, phenolics, ascorbic acid, antioxidant activity, microbial spoilage (counts) and total soluble solids (TSS) of tomatoes we...
Article
Background: Previous reports have addressed the effectiveness of salicylic acid (SA), acetylsalicylic acid (ASA) and methylsalicylate (MeSA) postharvest treatments on maintaining quality properties along storage in several commodities. However, there is no literature regarding the effect of preharvest treatments with salicylates on plum quality at...
Article
The effects of methyl jasmonate (MeJa) treatment, as elicitor, of artichoke plants [Cynara cardunculus var. scolymus (L.) Fiori], on yield and quality attributes of artichokes, especially those related with individual phenolic content and antioxidant activity, at two harvest dates and along storage, were analyzed in this research. Plants treated ga...