Study the antimicrobial activity of Lemon grass leaf extracts.

Abstract

Antimicrobial properties of Lemon grass were investigated against both clinical and laboratory isolates of both bacteria and fungi using the disc diffusion method. Acetone extracts (15 mm zone diameter of inhibition, MIC 250 µg/mL and MBC 300 µg /mL) demonstrated the highest activity, followed by dichloromethane (7 mm zone diameter of inhibition, MIC 300 µg /mL and MBC 400 µg/mL), methane (7.5 mm diameter of inhibition, MIC 400 µg /mL and MBC 400 µg /mL) and hexane (5.8 mm zone zone diameter of inhibition, MIC 800 µg/mL and MBC 1000 µg/mL). Water extracts demonstrated the least activity against the test bacteria and fungi (4 mm zone diameter of inhibition, MIC 900 µg/mL and MBC 900 µg/mL). Phyto constituents present included Saponins, Tannins, Alkaloids and Flavonoids. Lemon grass can be used to source antibiotic substances for possible treatment of bacterial and fungal infections.