Evaluation of total phenols and antibacterial activity of certain drug plants against some bacterial species

Abstract

:The present paper deals with antimicrobial activity of Glycyrrhiza glabra, Tinospora cordifolia, Tribulus terrestris, Thevetia peruviana, Adhatoda vasica, Vitex negungo, Apium graveolens and, Annona squamosa. It was studied against Bacillus cereus, Staphylococcus aureus, Salmonella typhy B (STB), Shigella dysenteriae using solvent (methanol and petroleum ether) extraction method. Methanol extract of all eight plants showed prominent inhibitory activity against S. dysenteriae and STB while G. glabra, V. negundo, and T. peruviana showed maximum zone of inhibition against four studied bacterial species. These results suggest that methanol extract is more effective than petroleum ether for the antimicrobial activity. Further total phenols were estimated and antibacterial activity of these plants in relation to total phenolic content is discussed.

Antimicrobial and antioxidant properties of African medicinal plants

“…In addition, medicinal plants are insecticidal, growth promoters, appetite enhancers and also stimulate the secretion of digestive enzymes among others [3]. The above properties have significant therapeutics actions against animal and human pathogenic organisms, viruses, bacteria and fungi [4]. Herbs are effectual in the treatment of the infectious diseases without side effects that are usually associated with synthetic antibiotics [5].…”