A STUDY OF ANTIBACTERIAL ACTIVITY OF ETHANOLIC EXTRACTS AND AQUEOUS EXTRACTS OF Leucas longifolia (Doron) LEAVES AGAINST Eschreiashia coli

Abstract

Leucas longifolia Benth also known as Doron (Assam) is an important herb frequently used in various folk remedies of Assam. The present study was designed to evaluate the antibacterial activity of aqueous extract and ethanol leaf extract of Leucas longifolia against disease causing Eschreiashia coli. Aqueous extract showed strong and superior antibacterial activity against Eschreiashia coli as compared to ethanol extract. These results were compared with standard antibiotic Norfloxacin. But the aqueous extract showed higher activity than the given standard antibiotic. These findings support the traditional use of the plant in the treatment of different infections in the area of medical science