In the present investigation essential oil of 12 aromatic plants were selected for examining their antimicrobial activity. The human pathogens Pseudomonus aeruginosa, Escherichia coli, Staphylococcus aureus and Candida albicans were selected for antimicrobial activity. Antimicrobial study of the essential oil against the selected pathogens showed that all the essential oils were effective against at least one pathogen. The killing time determination revealed that essential oil obtained from C. zedoaria, P. amaryllifolius, Z. rhetsa, E. cardamomum, M. Koenigii and H. acetocella contains the most effective essential oil. GC-MS analysis was conducted to reveal the bioactive chemical compound of the most potent essential oils.
Essential oil, antimicrobial activity, aromatic plant, killing time, GC-MS analysis.