Screening of antimicrobial properties of certain indian medicinal plants

Abstract

Crude extracts were prepared from the leaves of five medicinal plants viz., Aegle marmelos, Chloris virgata, Collinsonia anisata, Feronia limonia and Cassia auriculata using methanol as solvent and screened for their antibacterial activity against four bacterial pathogens. The tested bacterial strains were Escherichia coli, Salmonella typhi, Proteus mirabilis and Klebsiella pneumoniae. Among the five plants tested, the methanol extracts of Aegle marmelos and Cassia auriculata exhibited higher antibacterial activity. The antibacterial potential of the extracts were found to be dose dependent. The phytochemical analysis of the plants were carried out. The antibacterial activities of the leaves were due to the presence of various secondary metabolites.