Bioactive properties, fatty acid compositions, and phenolic compounds of some date palm (Phoenix dactyliferaL.) cultivars

Abstract

The antioxidant activity values and total phenol contents of date flesh samples changed between 6.61 (Osailah)–10.72% (Rothanh Qassim) and 50.64 (Osailah)–98.61 mgGAE/100 g (Rothanh Qassim), respectively. Hence cultivars showed significant (p ˂ .05) variations. Among phenolic compounds, gallic acid contents of date flesh varied between 1.61 (Sbakah) and 11.23 mg/100 g (Rushudiah), 3,4‐dihydroxybenzoic acid between 0.30 (Rushudiah) and 2.68 mg/100 g (Rothanh Qassim), and (+)‐catechin between 0.29 (Osailah) and 2.98 mg/100 g (Nabtat Ali). Fatty acid composition of date flesh showed palmitic acid changing from 12.77 (Osailah) to 16.04% (Rothans Qassim), elaidic acid from 39.21 (Osailah) to 67.99% (Sbakah), and linoleic acid from 11.61 (Sbakah) to 18.95% (Osailah). Crude protein contents of date flesh samples were between 2.06 (Nabtat Ali) and 16.67% (Osailah). Ca, K, Mg, and P were the major elements in date fruits. Ca, K, and P contents of date flesh samples were found between 10.90 (Sbakah)–237.18 mg/kg (Rushudiah), 54.17 (Rothanh Qassim)–214.66 mg/kg (Rushudiah), and 8.24 (Nabtat Ali)‐26.77 mg/kg (Rushudiah), respectively. Practical applications The date palm (Phoenix dactylifera L.) is one of the mankind's oldest cultivated plants. The date derivatives are rich in nutraceuticals and pharmaceuticals. Date flesh has nutritive components as potentially active antioxidant phytochemicals. The date has been an important crop in the desert regions of Arabian countries. Dates are rich in certain nutrients and provide a good source of rapid energy.

Phenolic Profile, Sugar Composition, and Antioxidant Capacities of Some Common Date Palm (Phoenix dactylifera L.) Cultivars as a Potential Nutraceutical and Functional Food Ingredients

“…Table 3 Previous research based on the biochemical composition of some Tunisian date palms also revealed signifcant differences between cultivars [27]. Te total phenolic concentration in this study difered from that of the Saoudian cultivars, which ranged from 50.64 ± 0.03 mg•GAE/100 g to 98.61 ± 0.03 mg•GAE/100 g [28] and difered also from those observed by Chaira et al [29] who showed that the phenol amount in some Tunisian date cultivars was lower than 9.70 mgGAE/100 g•FW. Tese fndings were in line with those reported by Alam et al [30], who found that the phenol content varied from 46 to 397 mg•GAE/100 g•FW using the Folin-Ciocalteu technique.…”

Valorization of Date Fruit (Phoenix dactylifera L.) Processing Waste and By-Products: A Review

“…Fatty acids play a crucial role in various physiological functions in the human body, including energy storage, cell membrane structure, and signaling [35]. The fatty acid composition of the date palm varies depending on the cultivar, geographic location, and maturity stage of the fruit [36]. The major fatty acids present in the date palm include palmitic acid (C16:0), oleic acid (C18:1), linoleic acid (C18:2), and stearic acid (C18:0) [37].…”

“…The date fruit is a rich source of phenolic compounds that possess biological activity due to the presence of a benzene hydroxyl ring with a carboxyl group [58]. The date fruit contains a range of phenolic compounds, including phenolic acids, flavonoids, and highmolecular-weight compact polymers [3,36]. There are four primary categories of phenolic compounds found in plants, namely phenolic acids, flavonoids, stilbene, and lignin.…”