In vitro antioxidant and antibacterial activities of tamus communis l. Root extracts from algeria

The present study was conducted to evaluate the in vitro antioxidant and antibacterial properties of Tamus communis L. root extracts (TCRE), which is a plant used in traditional medicine in Algeria. The antioxidant potential of pattern was evaluated using two complementary techniques, inhibition of free radical DPPH and the test of β-Carotene / linoleic acid. The antioxidant test indicates that non-polar fractions of TCRE (chloroform and ethyl acetate fractions) were more active than the polar fractions. Among these fractions, the chloroform extract appear in the DPPH test an IC50 of (0.0189 mg/ml) comparable to that of BHT (0.0186 µg/ml). This fraction was able to inhibiting the oxidation of β-Carotene with a percentage of inhibition (89.84 %). In antibacterial test, non-polar fractions showed antibacterial activity very important compared with the polar fractions. These fractions have inhibited the growth of four from nine bacterial strains, causing zones of inhibition from 08 to 14 mm of diameter.