Ishwari Prasad Gupta and Arapna Sinha
Post Graduate Department of Botany, Ranchi College Ranchi-834008
Received , 25th June, 2016; Revised: 19th August, 2016
Abstract : Adhatoda vasica, a popular Indian medicinal plant, the present paper gives an account of the antimicrobial activity of alcoholic extracts and alkaloids extracted extensively. The cold methanolic extracts of Adhatoda vasica and alkaloids isolated from the methanolic extract, were evaluated for antimicrobial activity against bacteria such as, Staphylococcus aureus, Escherichia coli, Salmonella typhimurium, Pseudomonas aeruginosa. Antimicrobial activity was performed using agar cup diffusion method. Methanolic extracts of Adhatoda vasica were found to be active only against S. aureus and P. aeruginosa, but alkaloids isolated from these extracts exhibited excellent antimicrobial activity
against organism investigated.