标题：Chemical variation of leaf essential oil at different stages of plant growth and in vitro antibacterial activity of Thymus vulgaris Lamiaceae, from Iran
期刊名称：Beni-Suef University Journal of Basic and Applied Sciences
印刷版ISSN：2314-8535
电子版ISSN：2314-8543
出版年度：2014
卷号：3
期号：2
页码：87-92
DOI：10.1016/j.bjbas.2014.05.001
语种：English
出版社：Elsevier
摘要：AbstractThe essential oil components of the leaves were isolated by hydrodistillation fromThymus vulgaris(T.) Lamiaceae, at different stages of plant growth. The essential oils fromT.Lamiaceae leaves were obtained in yields of 0.83–1.39% (w/w). The oils were studied by gas chromatography mass spectrometry (GC/MS) and thirty-six components were identified in the oil. The major components in the leaf oils were: thymol (38.23–63.01%), o-cymene (5.56–15.47%), γ-terpinene (4.43–7.17%), borneol (1.72–6.65%), 4-terpineol (1.24–5.16%) and 1,8-cineole (0.09–1.54%). The results showed that the oil yield and the major constituents' percentage of the leaf were different at different stages of plant growth. The essential oils ofT.Lamiaceae leaves were tested against five strains of Gram positive bacteria (g+) and five strains of Gram negative bacteria (g−). The average minimal inhibitory concentration (MIC) and minimal bactericidal concentration (MBC) of essential oils were determined using agar dilution method against the organisms by agar dilution method.
