antimicrobial activity and chemical composition of essential oil from the seeds of artemisia aucheri boiss

background artemisia aerial parts are well known for antimicrobial activities including anti malaria. objectives this study was carried out to evaluate the antimicrobial activity and chemical composition of essential oil from the seeds of artemisia aucheri boiss (asteraceae). materials and methods essential oil was extracted from the powdered seeds of artemisia aucheri by hydrodistillation. antimicrobial activity against five bacterial species was tested using the disc diffusion method, and the chemical composition of the essential oil was analyzed by gas chromatography-mass spectrometry (gc-ms). results the essential oil of artemisia aucheri seed showed activity against escherichia coli, staphylococcus aureus, and listeria monocytogenes. the essential oil constituents identified by gc-ms were as follows: decane, ρ-cymene, 1,8-cineole, linalool, ρ-mentha-8-ol, triene, borneol, lavandulol, bornyl acetate, chrysanthenyl acetate, dehydro aromadenderene, and caryophyllene oxide. most of these compounds are also found in the aerial parts of artemisia aucheri. conclusions variation in the compositions of essential oils from artemisia aucheri, and thus variation in the antimicrobial activity of these oils, may be due to the plant parts used for essential oil prepration.