Phytochemical, antioxidant, and antimicrobial attributes of different extracts of seeds: the Algerian variety of dates ‘Deglet Nour’ (Phoenix dactylifera L.)

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Research Articles | Published:

Print ISSN : 0970-4078.
Online ISSN : 2229-4473.
Website:www.vegetosindia.org
Pub Email: contact@vegetosindia.org
Doi: 10.1007/s42535-022-00413-3
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Keywords: Antibacterial, Antioxidant, Flavonoids, Polyphenols, Tannins, Seeds of date


Abstract


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.


Antibacterial, Antioxidant, Flavonoids, Polyphenols, Tannins, Seeds of date


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Acknowledgements


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.


Author Information


Boudghane Lamia Chaoui
Laboratory of Physiology, Physiopathology and Biochemistry of Nutrition, Department of Biology, Faculty of Natural and Life Sciences, Earth and Universe, University of Tlemcen, Tlemcen, Algeria
cblka13@gmail.com
Bouabdellah Nadia
Laboratory of Physiology, Physiopathology and Biochemistry of Nutrition, Department of Biology, Faculty of Natural and Life Sciences, Earth and Universe, University of Tlemcen, Tlemcen, Algeria


Bouanane Samira
Laboratory of Physiology, Physiopathology and Biochemistry of Nutrition, Department of Biology, Faculty of Natural and Life Sciences, Earth and Universe, University of Tlemcen, Tlemcen, Algeria


Ahmed Fatima Zohra Baba
Laboratory of Physiology, Physiopathology and Biochemistry of Nutrition, Department of Biology, Faculty of Natural and Life Sciences, Earth and Universe, University of Tlemcen, Tlemcen, Algeria


Laroussi Mohamed Amine
Laboratory of Physiology, Physiopathology and Biochemistry of Nutrition, Department of Biology, Faculty of Natural and Life Sciences, Earth and Universe, University of Tlemcen, Tlemcen, Algeria

Bendiaf Youcef
Laboratory of Physiology, Physiopathology and Biochemistry of Nutrition, Department of Biology, Faculty of Natural and Life Sciences, Earth and Universe, University of Tlemcen, Tlemcen, Algeria

Nas Fatima
Laboratory of Microbiology Applied to Food, Biomedical and Environment, Faculty of Natural and Life Sciences, Earth and Universe, University of Tlemcen, Tlemcen, Algeria

,
Merzouk Hafida
Laboratory of Physiology, Physiopathology and Biochemistry of Nutrition, Department of Biology, Faculty of Natural and Life Sciences, Earth and Universe, University of Tlemcen, Tlemcen, Algeria