不同产地玫瑰精油化学成分研究(英文)

目的]对全国不同产地玫瑰花精油化学成分进行分析。方法]采用水蒸气蒸馏法对产于国内六个省的玫瑰花精油进行提取,并采用GC-MS法对其化学成分进行分析。结果]玫瑰花精油含量范围为0.023%(v/w)-0.056%(v/w)。共鉴定出49个化合物,包括9种醇,17种脂肪烃,12种羰基化合物,3种杂合物,2种苯系物和6种酯类化合物。其中含量较高的主成分为二十烷(0.84%～17.81%)、二十一烷(1.07%～26.65%)、2-甲基庚烷(0.12%～9.14%)、4,5-二甲基辛烷(0.17%～3.13%)、3-甲基己烷(0.27%～11.74%)、香茅醇(0.51%～9.53%)、芳樟醇(0.31%～4.01%)。结论]不同产地的玫瑰花精油含量及化学成分均有差异。产地对玫瑰花精油的影响研究将为稳定药材质量提供参考。

Rose Oil Composition from the Flowers of Rosa rugosa Thunb. Growing in Different Locations of China

Objective] This study aimed to analyze the main compositions in the rose oil of the rose flowers from different regions in China. Method] The oils from rose flowers of Rosa rugosa Thunb. collected from six provinces in China were obtained by hydrodistillation and further analyzed by GC-MS. Result] The content of rose oil ranged from 0.023% (v/w) to 0.056% (v/w). Forty-nine constituents included nine alcohols, seventeen aliphatic hydrocarbons, twelve carbonyls, three miscellaneous compound, two benzenes and six esters, of which eicosane (0.84% -17.81% ), heneicosane (1.07%-26.65%), 2-methyl-heptane (0.12%-9.14%), 4,5-dimethyl octane (0.17%-3.13%), 3-methyl-hexane (0.27%-11.74%), citronellol (0.51%-9.53%) and linalool (0.31%-4.01%) were the main constituents. Conclusion] The study indicates that there is qualitative and quantitative difference in chemical composition of rose oil of rose flowers produced in different areas in China. The influence of production area should be carefully considered in order to maintain a consistent production of quality herb.