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Eddine, L.S., Ladjel, S. and Mohamed, O.M, “A comparative study of the antioxidant activity and phytochemical composition of leaves extract between three varieties of date palm tree”, International Letters of Chemistry, Physics and Astronomy, 9(2). 162-171. Sep.2013.

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Article

Towards the Utilization of Date Palm (Phoenix dactylifera) Leaves as a Rich Source of Antioxidants

1Biochemistry department, College of Science, King Saud University, Riyadh, Kingdom of Saudi Arabia, 2455, Riyadh 11451


Journal of Food and Nutrition Research. 2020, Vol. 8 No. 11, 632-637
DOI: 10.12691/jfnr-8-11-3
Copyright © 2020 Science and Education Publishing

Cite this paper:
Abuelgassim Omer Abuelgassim. Towards the Utilization of Date Palm (Phoenix dactylifera) Leaves as a Rich Source of Antioxidants. Journal of Food and Nutrition Research. 2020; 8(11):632-637. doi: 10.12691/jfnr-8-11-3.

Correspondence to: Abuelgassim  Omer Abuelgassim, Biochemistry department, College of Science, King Saud University, Riyadh, Kingdom of Saudi Arabia, 2455, Riyadh 11451. Email: gassim@ksu.edu.sa

Abstract

Three varieties of date palm (Phoenix dactylifera) leaves (DPL) namely: Sagaie, Khalas, and Nabtat Alsaif were examined for their antioxidant activities. DPL extracts showed a total phenolic content ranged between 1498.14 ± 100.52 - 4374.76 ± 657.64 mg gallic acid equivalent (GAE)/100g dry weight (DW) and a total flavonoid ranged between 134.70 ± 16.24 - 224.62 ± 22.35 mg quercetin (QE)/100g (DW). The IC50s for scavenging ABTS radical were ranged between 71.87 ± 14.37- 217.87 ± 27.40µg Trolox equivalent, whereas that required for scavenging DPPH were ranged between 197.86 ± 17.60-693.32 ± 25.44 µg ascorbic acid equivalent. DPL extracts potentially scavenged hydroxyl and superoxide anion radicals, IC50s values were ranged between 208.04 ± 12.76-719.63 ± 24.38 and 825.92 ± 19.40 -1193.20 ± 28.74µg GAE respectively. DPL extracts showed a good activity against ferric reducing antioxidant power (FRAP) ranged between 7.69 ± 0.47- 22.13 ± 1.36 mmol ascorbic acid equivalent/100g. DPL extracts showed a considerable antioxidant activity, therefore, DPL could be effectively used as natural source of antioxidant in food and pharmaceutical industries.

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