Comparative antibacterial activity of five Lamiaceae essential oils from Algeria

摘要

The essential oils of five Algerian Lamiaceae species, Thymus numidicus, Thymus fontanesii, Teucrium poiiurn subsp. aurasiacum, Teucrium atratum and Rosmarinus officinalis, obtained by hydrodistillation in a Clevenger-type apparatus, were tested against bacterial strains of Bacillus subtilis, Enterobacter aerog-enes, Escherichia coli ATCC 25922, Klebsiella pneumoniae, Proteus mirabilis, Pseudomonas aeruginosa ATCC 27853, Salmonella typhimurium, Serratia marces-cens and Staphylococcus aureus ATCC. The essential oil of Thymus numidicus exhibited the strongest antibacterial activity, reported for the first time from a Lamiaceae species.