Antibacterial activity of Thymus pallidus Batt. and determination ofthe chemical composition of its essential oil

摘要

Thymus pallidus Batt. (Lamiaceae) is an endemic species of theCentre-South of Morocco. We report here the study of the antibacterial activity ofthis plant and the determination of the chemical composition of its essential oil.Thus, the aqueous and ethanolic extracts and the essential oil of T pallidus areable to inhibit the growth of different bacterial species: Bacillus subtilis,Escherichia coli, Erwinia chrysanthemi, Mycobacterium smegmatis MC2 155 andMycobacterium aurum A+. Moreover, the GC/MS analysis of the chemical com-position of the essential oil of T pallidus showed that the mains components ofthis oil are: a-terpinene (42,21%), thymol (23,95%) and β-ocymene (8,3%).