Antibacterial Activity of N-Hexan and Ethyl Acetate Fractions of Gaharu Leaves (Aquilaria malaccensis) Against Bacteria Causing Skin Infection

Abstract

Gaharu (Aquilaria malaccensis) leaves are plants that are useful in the treatment of infectious diseases. This study aims to obtain n-hexane and ethyl acetate fractions of Gaharu leaves that have antibacterial activity against skin infection bacteria by agar diffusion. The results of antibacterial activity screening of the n-hexane fraction and ethyl acetate fraction at a concentration of 0.1% is bacteriostatic. The test results of Minimum Inhibitory Concentration (MIC) and Minimum Bactericidal Concentration (MBC) using concentrations of 0.1%, 0.2%, 0.4%, 0.8%, 1.6%, 3.2%, 6.4% and 12.8% obtained MIC value of n-hexane fraction at 0.2% against P. acnes, P. aeurogynes bacteria and 0.4% against S. aureus, S. epidermidis bacteria, MIC value of ethyl acetate fraction was 0.2% against P. aeuroginosa, S. aureus bacteria and 0.4% against P. acnes, S. epidermidis bacteria. MBC value of n-hexan fraction was 0.4% against P. acnes, P. aeuroginosa bacteria, 0.8% against S. aureus bacteria, 1.6% against S. epidermidis bacteria, MBC value of ethyl acetate fraction was 0.4% against P. acnes, P. aeuroginosa, S. aureus bacteria, 0.8% against S. epidermidis bacteria. The results of the antibacterial activity using concentrations of 1.56%, 3.12%, 6.25%, 12.5% and 25% obtained the largest inhibition zone diameter of the n-hexane fraction was 13,99 mm and the ethyl acetate fraction was 27,68 mm against S. epidermidis bacteria at a concentration of 25%. Based on the results, it can be concluded that the antibacterial activity of the ethyl acetate fraction against all test bacteria is stronger than the n-hexane fraction