Minerals, antioxidant compounds and phenolic profile regarding date palm (Phoenix dactylifera L.) seed development

Bijami, Azadeh; Rezanejad, Farkhondeh; Oloumi, Hakimeh; Mozafari, Hamid

doi:10.1016/j.scienta.2019.109017

Cited by 30 publications

(18 citation statements)

References 24 publications

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“…Corresponding values, in date seeds, of K (3956.6 ± 360.0-6127.6 ± 557.0), Ca (312.5 ± 28.0-800.3 ± 72.0), and Mg (583.8 ± 53.0-1001.3 ± 91.0 mg/kg) were consistent with those found by Habib and Ibrahim [30]. Similar results for minerals were recently reported by Bijami et al [53] for date seeds from "Mozafati" cultivar grown in Iran. According to these authors, seed mineral levels decrease during developmental stages to reach the lowest values at Tamar stage.…”

Section: Mineral Compositionsupporting

confidence: 91%

Physical Fruit Traits, Nutritional Composition, and Seed Oil Fatty Acids Profiling in the Main Date Palm (Phoenix dactylifera L.) Varieties Grown in Morocco

Ibourki

Azouguigh

Jadouali

et al. 2021

Journal of Food Quality

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We investigated fruit physical traits and nutritional value in both seed and flesh in eight Moroccan date palm varieties. The greatest values of weight for whole fruit, flesh, seed, and flesh percentage were found in “Boufgous,” “Agondari,” and “Bouskri.” These two later varieties displayed also their superiority with respect to proximate composition. For fruit flesh, proximate composition, energy value, and reducing capacity ranged as follows: proteins (1.60–3.53%), moisture (5.31–17.31%), ash (2.08–2.50%), lipids (0.32–1.09%), carbohydrates (76.69–90.18%), energy value (338.30–385.89 kcal/100 g), and reducing capacity (100.14–1607.12 mg GAE/100 g). Corresponding values in seeds were as follows: proteins (3.20–5.00%), moisture (1.42–4.14%), ash (1.14–1.50%), lipids (6.30–7.40%), carbohydrates (83.39–85.55%), energy value (417.06–429.51 kcal/100 g), and reducing capacity (1427.71–6843.84 mg GAE/100 g dry weight). Among all minerals (K, Ca, Mg, B, Fe, Cu, Mn, Na, and Zn) found in both fruit parts, K had the highest records for both flesh (12047 mg/kg) and seed (6127.6 mg/kg), followed by Mg and Ca. Seeds lipidic fraction was dominated by monounsaturated fatty acid C18 : 1 (47.5%), followed by saturated fatty acids mostly C12 : 0 (18.0%), C14 : 0 (10.5%), and C16 : 0 (10.6%) and finally polyunsaturated fatty acid C18 : 2 (8.8%). It could be concluded that investigated varieties presented a great importance from a nutritional point of view, and seeds could present important opportunities of valorization.

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Section: Mineral Compositionsupporting

confidence: 91%

Physical Fruit Traits, Nutritional Composition, and Seed Oil Fatty Acids Profiling in the Main Date Palm (Phoenix dactylifera L.) Varieties Grown in Morocco

Ibourki

Azouguigh

Jadouali

et al. 2021

Journal of Food Quality

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“…For the studies of phenolic compounds and antioxidant activity, the extracts were prepared based and Bijami et al 22 with slight modifications. Briefly, a total of 100 mg of the ground materials (corms, stems, leaves and fruits, each separately) with 2 mL of 80% methanol were extracted and placed on a shaker set at 200 rpm for 2 hours at room temperature.…”

Section: Methodsmentioning

confidence: 99%

A comparative study of essential oil constituents, total phenolics and antioxidant capacity of the different organs of four species of the genus bunium

Adelifar

Rezanejad

2021

Flavour & Fragrance J

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Bunium persicum is one of the fragrant herbaceous plants that has many nutritional and medicinal applications. Information about other species of Bunium is scarce. Essential oils, polyphenolics and antioxidant activity were analysed in four species of Bunium. The highest levels of total flavonoids were observed in leaves and fruits of B wolffii while the other polyphenolics did not show significant differences between the species and organs. Gas chromatography‐mass spectrometry (GC/MS) analysis revealed 16, 14, 14 and 13 main components respectively accounting for 97.52% of the entire essential oils of B cylindricum, 91.12% of B paucifolium, 97.14% B persicum and 96.41% of B wolffii. The monoterpenes content was 57.9, 22, 97.14 and 63.83% in B cylindricum, B paucifolium, B persicum and B wolffii respectively whereas sesquiterpenes levels were respectively 1.29, 27.45, 0.0 and 2.98%. The nonterpens constituted 38.33, 41.67, 0.0 and 29.6% in these four species respectively. The highest amount of monoterpenes (97.14%) was observed in B persicum, while the maximum of sesquiterpenes (27.45%) and nonterpenes (41.67%) obtained in B paucifolium. The main constituents were γ‐terpinene, myristicin, cuminaldehyde, apiole, α‐pinene, β‐pinene, β‐selinene, Z‐ β‐ocimene and γ‐terpinene‐7‐al. Cuminaldehyde with the pleasant odour was only revealed in B persicum. All organs of different species except corms showed high antioxidant activity using ABTS and DPPH assay. Thus, similar to B persicum, the other studied species are a rich source of antioxidant compounds and can be used as functional food ingredients and a potential source of natural antioxidants with valuable health benefits.

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“…Dates are a rich nutritional source and a recognized source of biologically active components [ 4 ]. One of the main by-products of dates is the seed, which was initially used only for animal feed, although more and more studies are showing its true potential [ 5 , 6 ]. Thanks to these studies, its uses are being oriented towards nutritional purposes, such as its use in fiber powder, coffee, bread, or even cosmetics and functional ingredients [ 5 ].…”

Section: Introductionmentioning

confidence: 99%

“…The extraction of oil is an important starting point for its industrialization [ 6 ] followed by the extraction of bioactive components such as phenols. In this regard, mainly acid phenols and flavonoids have been identified, which have been extracted with different solvents after a grinding phase, proving their antioxidant [ 5 , 7 , 8 , 9 , 10 , 11 ] and anti-inflammatory activities [ 12 ], among others.…”

Section: Introductionmentioning

confidence: 99%

Date Seed: Rich Source of Antioxidant Phenolics Obtained by Hydrothermal Treatments

Mrabet

Jiménez-Araujo²,

Fernández-Prior³

et al. 2022

Antioxidants

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The growing interest in natural compounds is helping to improve the management of agro-industrial by-products such as the date seed as sources of such compounds. In this work, the application of a hydrothermal treatment at 160 and 180 °C for 60 min was studied to achieve the solubilization of its phenolic components and sugars in order to obtain biologically active extracts. The percentage of phenols and total sugars in the final extracts were very similar, at 45 and 25% for the 160 and 180 °C treatments, respectively. The treatment at a higher temperature allowed greater solubilization of other components. The antioxidant activity was measured as free-radical scavenging capacity. For the DPPH• method, expressed as EC50, the results were 0.34 and 0.37 mg/L, the TEAC values for the ABTS• method were 6.61 and 3.28 mg/g dried extract, and the values obtained by the ORAC method were 12.82 and 9.91 mmol Trolox/g dried extract, for 160 and 180 °C, respectively. All these values are higher than those of other plant extracts and extracts obtained using the whole date. Therefore, the date seed is a very important source of phenols, and through thermal and chromatographic processes, it is possible to obtain extracts with high antioxidant activity.

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Minerals, antioxidant compounds and phenolic profile regarding date palm (Phoenix dactylifera L.) seed development

Cited by 30 publications

References 24 publications

Physical Fruit Traits, Nutritional Composition, and Seed Oil Fatty Acids Profiling in the Main Date Palm (Phoenix dactylifera L.) Varieties Grown in Morocco

Physical Fruit Traits, Nutritional Composition, and Seed Oil Fatty Acids Profiling in the Main Date Palm (Phoenix dactylifera L.) Varieties Grown in Morocco

A comparative study of essential oil constituents, total phenolics and antioxidant capacity of the different organs of four species of the genus bunium

Date Seed: Rich Source of Antioxidant Phenolics Obtained by Hydrothermal Treatments

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