Proximate composition of polyphenolic, phytochemical, antioxidant activity content and lipid profiles of date palm seeds oils (Phoenix dactylifera L.).

Palm date seeds oil of eight varieties were investigated for physical, chemical, and phytochemical analysis, and compared to used commercial oils. Significant differences were observed among varieties. The oil content of the eight varieties ranged from 6.05 to 10.25%. Fatty acid analysis using GC-MS revealed that oleic acids were the dominant component (38.67-44.38%) followed by lauric (21.72-26.66%), myristic (11.26-13.04%); palmitic (9.65-11.38%); linoleic (6.25-8.24%); stearic (3.06-3.32%) while linolenic acid was found in traces. The carotenoids content ranged from 17.57 ± 0.02 to 12.35 ± 0.03 mg/kg oil, total phenolic content ranged from 58.04 ± 0.30 to 181.03 ± 0.75 mg GAE/100 g and flavonoids content values ranged from 22.81 ± 0.08 to 53.41 ± 0.72 mg RE/100 g oil. The antioxidant activities (DPPH and ABTS) varied from 17.28 ± 1.06 to 47.37 ± 1.05 and 3.10 ± 0.28 to 8.83 ± 0.08 mg AAE/100 g, respectively. The phenolic compounds identified in...