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Qualitative and quantitative analysis of Phoenix Dactilifera L. Seeds in Morocco with antioxidant activities using chemometrics
 
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1
Laboratory of Materials Nanotechnology and Environment, Faculty of Sciences, Mohammed V University in Rabat, Av. Ibn Battouta, Agdal, Rabat P.O. Box 1014, 10000, Morocco
 
2
Laboratory of Natural Resources and Sustainable Development, Faculty of Sciences, Ibn Tofail University, Kenitra P.O. Box 242, 14000, Morocco
 
3
Institute of Nursing Professions and Health Techniques, Annex, Kenitra, Morocco
 
4
Department of Chemistry, AN-Najah National University, P.O. Box 7, Nablus, Palestine
 
5
Research Centre, Manchester Salt & Catalysis, unit C, 88-90 Chorlton Rd, M15 4AN, Manchester, United Kingdom
 
 
Corresponding author
Yasmina Halabi   

Laboratory of Materials Nanotechnology and Environment, Faculty of Sciences, Mohammed V University in Rabat, Av. Ibn Battouta, Agdal, Rabat P.O. Box 1014, 10000, Morocco
 
 
Ecol. Eng. Environ. Technol. 2024; 4:81-91
 
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ABSTRACT
The phytochemical compounds and the antioxidant activity of ten varieties of Phoenix dactilifera L. seeds in Morocco were examined. The phytochemical screening was used to reveal the presence of some important compounds such as polyphenols, flavonoids, tannins catechic, terpenoids, leucoanthocyanins, carotenoids, alkaloids, saponins and the absence of tanins Gallic and cardiac glycosids. The total phenolic content was ranged between 381.29±2.31 and 138.92±1.75 mg Gallic acid equivalent/g of Extract, the total flavonoid content was between 163.53±1.82 and 46.74±1.26 mg quercetin equivalent/g Extract, and tanins were found from 95.87±2.08 to 24.20±1.45 mg catechin equivalent/g Extract. Indeed, the scavenging ability with DPPH (2,2-diphenyl-1-picrylhydrazyl) and ABTS (2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) assays recorded a low inhibitory concentration (IC50) ranged from 1.52 to 4.78 µg/mL and from 18.90 to 46.62 µg/mL respectively. Likewise, the Ferric Reducing Antioxidant Potential (FRAP) assay showed a good reduction capacity of ferric ions ranged from 69.25 to 161.26 µg/mL.
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