Antibacterial activity of the volatile oils from Mentha piperia L. and Vitex agnus-castus L on Pseudomonas aeruginosa isolated from burn injuries

Abstract

This study was aimed to extract the volatile oils from two medicinal plants (Mentha piperia, and Vitexagnus-castus)and evaluation of biological activity against the bacteria Pseudomonas aeruginosa isolated from burn injuries that collected from patients in Al Hussein Hospital / Karbala .The present experimental in vitro study was carried out to evaluate the antibacterial activities of essential oils on the isolates was determined by disc diffusion method . Microdilution broth susceptibility assay was used in order to determine the MICs of essential oils. The essential oils of M. piperia had strong antimicrobial activity (inhibition zone22.5–10 mm) when 0.5µl and 0.25 µl where as V. agnus castus had moderate antibacterial activity (inhibition zone reached 12.5mm at 0.5 µl) .According to the results, essential oils exhibited moderate to strong antibacterial activity against the tested bacteria