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Antibacterial Activity of Wrightia Arborea (Dennst.) Mabb. Leaf Extracts

Madhu C. Divakar and S. Lakshmi Devi

Wrightia arborea (Dennst.) Mabb. leaf extracts were tested for their in vitro antibacterial activity by cup plate method, against three Gram positive bacteria, viz. Staphylococcus aureus, Bacillus subtilis and Staphylococcus epidermidis and two Gram negative bacteria viz. Echerichia coli and Pseudomonas aeruginosa. By using different types of individual extracts like aqueous, 70% ethanol, methanol and successively in increasing order of polarity with petroleum ether, dichloromethane, ethyl acetate and chloroform extracts. Methanol extract was found to have more antibacterial activity as compared to other extracts, but less than that of standard drug ciprofloxacin.