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Free radical scavenging and biological activity of leaves and roots of Thymelaeahirsuta, collected from Algeria‎

Karouche Saida , Henouda Sara , Benbott Amel , Malki Samira


The present work was focused on evaluating the antioxidant and antibacterial activities of the Algerian Thymelaea extracts.The polyphenol content was significant in the methanolic extract of the roots (149,501 ± 0,747 μg EAG/mg), by contrast, in the aqueous extract, the leaves were rich in polyphenols (70.2115 ± 0.876 μg EAG/mg). Thus, the flavonoid content in the leaf extract was higher than the content in the root extract (7.745 ± 0.07 and 6.240 ± 0.21, μg EQ/mg, respectively). Moreover, the methanolic root extract presented the best antioxidant power, with an IC50 of 569.47 μg/mL, which was lower than that of the standard (IC50= 545.13 μg/mL). The antibacterial activity was also tested on seven bacterial strains; all extracts positively reacted with at least one of the tested microbial strains and confirmed that this plant is endowed with antimicrobial properties‎.

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