THE CHEMICAL COMPOSITION AND ANTIMICROBIAL ACTIVITY OF ESSENTIAL OIL OF Dysphania ambrosioides (L.) Mosyakin & Clemants IN LAM DONG PROVINCE

Abstract

This study aims to evaluate the chemical composition of the essential oil of Dysphania ambroisioides (L.) Mosyakin & Clemants in Lam Dong province, and their antimicrobial activities. The essential oil of the species was extracted by steam distillation method, and their chemical composition was analyzed by gas chromatography-mass spectrometry (GC-MS). The antimicrobial activity of essential oils was examined at different concentrations (12.5%, 25%, 50%, 75%, and 100%) by agar well diffusion method with Staphylococcus aureus, Escherichia coli, and Candida albicans. Fifteen constituents were identified in the essential oil, of which α-terpinene (74.70%), ascaridole (17.93%), and δ-cymene (3.04%) were the three most abundant constituents. The essential oil in all concentrations was active against S. aureus, E. coli, and C. albicans, and they are sensitive to all three strains.