The studies on effect of of plant extract of Vitexnegundo Linn against different bacterial species

Abstract

The Methanolleaf extracts of of Vitex negundo were analyzed to study the antibacterial activity against three bactria i.e.E. coli, Staphylococcus, Pseudomonas, Enterobacter, Salmonella typhimuri using the disc diffusion method. The in vitro study was conducted by using 25 µl concetration. The five treatments and three replications were adopted durinmg the study. All the five bacteria E. coli, Staphylococcus, Pseudomonas, Enterobacter, Salmonella typhimuri were inhibited by leaf extract with zone of inhibition 23 mm, 22.1 mm, 19.6 mm, 18.5 mm and 17.8 mm respectively.