ANTIMICROBIAL ACTIVITY OF METHANOLIC AND ACETONIC EXTRACTS OF AZADIRACHTA INDICA, SARACA ASOCA AND CURCUMA LONGA

In the present work an attempt has been made to analyse the antibacterial and antifungal potential of methanolic and acetonic extracts of Azadirachta indica, Saraca asoca and Curcuma longa against E.coli and B. subtilis among bacterial strains and A. niger and A. fumigatus among fungal strains by disc diffusion method and the antibacterial and antifungal activities were determined by measuring the diameter of zone of inhibition. The methanolic extracts of Curcuma longa possessed the highest antibacterial with a zone of inhibition of 20 mm for E.coli and highest antifungal activity with a zone of inhibition of 22 mm for A. fumigatus. Acteonic extracts, exhibited lesser antibacterial activity with respect to B. subtilis 8 mm and antifungal activities with respect to A. niger being 8 mm when compared to the methanolic extracts.