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Article | IMSEAR | ID: sea-209827

ABSTRACT

The present inquiry attempts to determine the antioxidant capacity of Launaea resedifolia’s hydroalcoholicextract which is obtained from Algerian Sahara. The antioxidant capacities of various extracts of aerial partsof L. resedifolia were estimated by using 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical-scavenging capacity,ferric reducing power (FRP), and total antioxidant capacity. In addition, the total phenols, flavonoids, andtannins contents of various extracts were measured by using colorimetric methods, the greater content ofphenols and flavonoids was registered in crude extract (6.642 ± 0.262 mg gallic acid equivalent/g DW and0.929 ± 0.018 mg quercetin equivalent/g DW, respectively), while the tannins was found in water fraction(1.246 ± 0.153 mg RE/g DW). Both capacities of DPPH scavenging and FRP were found best in ethyl acetatefraction (IC50 = 403.551 µg/ml and AEAC = 0.151 mM, respectively). For total antioxidant capacity, thesuperior capacity was observed in water fraction (EEAC = 0.149 Mm).

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