Antimicrobial Activity and Composition of the Essential Oil from Mentha mozaffarianii

Abstract The aerial parts (leaves and fruits) of Mentha mozaffarianii Jamzad (Lamiaceae) were collected at full flowering stage from Geno and Tangezagh, Bandar Abbas, Iran. The essential oil was isolated by hydrodistillation and analyzed by combination of capillary GC and GC-MS. Thirteen components were identified, representing 95.8 % of the total oil. Piperitenone (59.5 %), cis-piperitenone epoxide (14.9 %) and pulegone (8.5 %), were the main components. The in vitro antimicrobial activity of the essential oil of M. mozafarianii was studied against five Gram-positive (Bacillus subtilis, B. pumulis, Enterococcus faecalis, Staphylococcus aureus, S. epidermidis) and three Gram-negative (Escherichia coli, Pseudomonas aeruginosa and Kleb-siella pneumoniae) bacteria, and three fungi (Candida albicans, Saccharomyces cerevisiae and Aspergillus niger). The results of the antimicrobial activities of the essential oil according to the disk diffusion method and MIC values indicated that the oil exhibited high antimi...