Evaluation of antimicrobial activity of Azadirachta indica bark extract

Antimicrobial activity in bark extract of neem (Azadirachta indica) against human pathogenic bacteria Staphylococcus aureus and Pseudomonas aeruginosa. Antimicrobial activities of chloroform and alcoholic extracts of neem bark were used. Varying concentration of each extracts 1250 mg/ml, 625 mg/ml, 312mg/ml, 156mg/ml were prepared by using disc diffusion method. When compared with cefpodoxime 500mg the chloroform and ethanol extract shows maximum inhibition on the microorganisms in ascending order.