Chemical Composition and Antimicrobial Activity of Essential Oil of Hyssopus angustifoliusM.B.

AbstractThe essential oil of the dried flowering aerial parts of Hyssopus angustifoliusM.B. (Lamiaceae) collected from the suburb of Sari, Mazandaran Province, North of Iran, in May 2007, were isolated by hydrodistillation and analyzed by means of GC and GC-MS. The major components of H. angustifoliusoil were dehydro-linalool (16.9 %), β-phellandrene (9.4 %) and β-pinene (7.9 %). The antimicrobial activity of H. angustifoliusoil was studied using the disk diffusion method and determination of minimal inhibitory concentration (MIC) values against Bacillus subtilis, Staphylococcus aureus, Escherichia coli, Salmonella typhi, Pseudomonas aeroginosa, Aspergilus nigerand Candida albicans. The H. angustifoliusoil exhibited concentration-dependent antibacterial activity on all bacteria tested. The essential oil did not show antifungal activity against fungi.