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Antioxidant and antibacterial activities of extracts from Conyza bonariensis growing in Yemen
Pakistan Journal of Pharmaceutical Sciences. 2015; 28 (1): 129-134
in English | IMEMR | ID: emr-153887
ABSTRACT
This study aims to examine the antioxidant and antibacterial activities and phenolic contents of Conyza bonariensis growing in Yemen. The whole plants of C. bonariensis were ultrasonically extracted by ethanol. The antioxidant activity of the extract was determined by 2,2-diphenyl-1-picrylhydrazyl [DPPH] and beta -carotene bleaching [BCB]. The effectiveness of the extract on the growth inhibition of some indicators of foodborne illness bacteria were investigated by agar well diffusion assay. The total phenols [TP], total flavonoids [TF], total tannins [TT], and total anthocyanins [TA] were determined by Folin-Ciocalteu method, aluminium chloride method, Folin and Ciocalteu method, and pH-differential method, respectively. The extract of C. bonariensis possessed TP 144.1 mg/g, TF 143 mg/g, TT 0.99mg/g, and TA 0.97mg 100g, with 94.57% inhibition of DPPH and 92.47% inhibition of BCB, and strong inhibitory effects against tested bacteria, which was approximate to those of peel extract of Punica granatum
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Index: IMEMR (Eastern Mediterranean) Main subject: Plant Extracts / 37052 / Anti-Bacterial Agents / Antioxidants Language: English Journal: Pak. J. Pharm. Sci. Year: 2015

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Index: IMEMR (Eastern Mediterranean) Main subject: Plant Extracts / 37052 / Anti-Bacterial Agents / Antioxidants Language: English Journal: Pak. J. Pharm. Sci. Year: 2015