Boudghane Lamia Chaoui, Bouabdellah Nadia, Bouanane Samira, Ahmed Fatima Zohra Baba, Laroussi Mohamed Amine, Bendiaf Youcef, Nas Fatima, Merzouk Hafida
Keywords:
Antibacterial, Antioxidant, Flavonoids, Polyphenols, Tannins, Seeds of date
This article opens a new field on the therapeutic virtues of the phytochemical constituents of plant by-products at the level of their antioxidant and antibacterial activities which greatly contribute to the reduction of the risk of developing diseases related to oxidative stress as well as to the treatment of bacterial infections. This work gives a global evaluation of three extracts of seeds date (DS)of the variety "Deglet Nour", aqueous, methanolic (MeOH) and hydro-methanolic (A-MeOH) extracts. The highest content of phenolic compounds, total polyphenols (TPC), total flavonoids (TFC), and tannins were found in the methanolic extract, on the other hand, the highest antioxidant activities, scavenging 1,1-diphenyl-2-picrylhydrazyl radicals and reducing ferric ions were shown by the MeOH extract, on the other hand, the hydro-methanolic extract exhibited lower values of bioactive compounds and remarkably lower antioxidant and antimicrobial activity compared to the other two extracts. The results thus obtained are in favor of possible exploitation of these seeds in food products thanks to their nutritional and chemical composition, as well as potential benefits to human health, and their role as a functional food.
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We would like to thanks Mr. Reda Hessaïne (IT engineer in the medical university Abou-Bekr Belkaid of Tlemcen in Algeria) for helping me with computer programming.