Antimicrobial activity of Ethanolic extracts of leaves and stems of Peristrophe bivalvis Merrill

Abstract

The antimicrobial activity of ethanolic extracts of leaves and stems of Peristrophe bivalvis Merrill was tested by agar diffusion streak well method. The zone of Inhibition produced by the extracts was measured against doses 10 mg, 40 mg, 70 mg and 100 mg/ml and compared with standard Gentamicin 10 µgm/ml for bacteria and Clotrimazole 25 µgm/ml for fungi. Their minimum inhibitory concentrations were calculated. It was found that Peristrophe bivalvis Merrill is having broad spectrum of activity. Leaves showed more antimicrobial activity as compared to stems.