Abstract | The essential oils from fresh flower and fresh branch and leaf of Dracocephalum tanguticum Maxim. from Qinghai were extracted by steam distillation method. And their chemical components and relative contents were identified and analyzed by GC-MS. The results show that the yield of essential oils from fresh flower and fresh branch and leaf is 0. 51% and 0. 33%, respectively; and there are some differences in their composition and relative content. 59 and 44 constituents are identified in essential oils from fresh flower and fresh branch and leaf with accounting for 94. 00% and 92. 40% of total relative content, respectively. In which, relative content of linalyl acetate is the highest from fresh flower and fresh branch and leaf, with relative content of 31. 67% and 36. 16%, respectively. In addition, constituents with relative content over 1% are linalool, α-terpineol, eucalyptol, germacrene D, geranyl acetate and neryl acetate, etc.
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关键词 | 唐古特青兰; 鲜花; 新鲜枝叶; 精油; 成分 |
Key words | Dracocephalum tanguticum Maxim.; fresh flower; fresh branch and leaf; essential oil; constituent |
作者 | 肖远灿1, 谢顺燕2, 董琦1, 胡风祖1 |
所在单位 | 1. 中国科学院西北高原生物研究所, 青海西宁810008; 2. 青海师范大学化学系, 青海西宁810001 |
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基金项目 | 中国科学院知识创新工程重要方向项目(KSCX2-EW-J-26) |