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目的:对甘肃产百里香挥发油成分进行分析比较研究。方法:水蒸气蒸馏法提取百里香挥发油,用GC/MS法对不同样品精油成分进行分析鉴定,并利用柱色谱法对挥发油中部分化合物分离纯化,辅助鉴定精油化学成分。结果:从3种精油中共鉴定出89种化合物,其中化合物相对含量大于0.5%的共有成分有10种。达宗湖产精油主要成分为香叶醇、百里香酚和长叶烯等;扎油沟产精油以芳樟醇和百里香酚等为主;天水产精油主要含有侧柏烯、桉叶醇、百里香酚和雪松醇等。结论:甘肃产百里香挥发油的主要化学成分为单萜类化合物;同种植物由于生长环境的差异,使其精油成分及相对含量产生影响。
Objective: To analyze and compare the volatile oil components of Thyme in Gansu Province. Methods: Volatile oil from thyme was extracted by steam distillation. The constituents of essential oil from different samples were analyzed and identified by GC / MS. Some compounds in volatile oil were separated and purified by column chromatography, and the chemical components of essential oil were identified. Results: A total of 89 compounds were identified from the three essential oils, of which there are 10 common compounds with the relative content of more than 0.5%. The major components of Tasong Lake’s essential oil are geraniol, thymol and longifolene; the essential oils of zhaogou ditch are mainly linalool and thymol; the essential oil of Tianshui mainly contains plentiplane, eucalyptol, thymol And cedrol alcohol. CONCLUSION: The main chemical constituents of the essential oil of Thyme in Gansu are monoterpenoids. The differences of the growth environment of the same plant affect the composition and relative content of the essential oil.