Evaluation of antioxidant and antimicrobial activities of tannins extracted from Sedum pubescens Vahl

Nouioua Wafa and Gaamoune Sofi

Abstract

The aim of this study was to assess the antioxidant and antimicrobial activities of tannins extracted from North African endemic species, which constitute an enigma toward their capacities. Antioxidant properties were evaluated through the ability of the extract to scavenge DPPH radicals and the reducing power essay, however, the antimicrobial activity was tested with three bacterial strain and three fungi including yeast (Escherichia coli ATCC 25922, Salmonella typhimurium ATCC 13311, Staphylococcus aureus ATCC25923, Aspergillus niger 2CA936, Aspergillus flavius NRRL3357 and Candida albicans ATCC1024). The result shows a very interesting antimicrobial and antioxidant activities and this plant seems to be a good source of natural compounds for different use.

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