This study investigates the phytochemical composition and antioxidant potential of hydromethanolic extract of Moringaoleifera L. flowers harvested in Kaolack, Senegal. Phytochemical screening revealed the presence of several classes of bioactive compounds (polyphenols, flavonoids, alkaloids, sterols, polyterpenes, leucoanthocyanins, etc.), whose distribution varies according to the polarity of the extraction solvents. Quantitative analysis showed a significant concentration of phenolic acids (31.47 ± 0.10 mg GAE/g) and a high content of flavonoids (291 ± 20.035 mg QE/g), confirming a high richness in antioxidants. Biological activity, assessed by DPPH and FRAP tests, indicated a percentage of inhibition of 48.62 ± 2.34% (DPPH) and a reduction capacity of 18.609 ± 0.552 mg EAA/g (FRAP). In addition, pigment analysis revealed the presence of chlorophyll a (1.37 mg/100g), chlorophyll b (3.70 mg/100g) and carotenoids (7.7 mg/kg), contributing to overall antioxidant activity. On the basis of the results obtained, moringa flowers are found to be a potential source of natural antioxidants due to their marked antioxidant activity.
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