桂产藿香蓟的挥发油化学成分分析

Analysis of the Chemical Composition of the Essential Oil in Ageratum conyzoides.L. from Guangxi

目的:分析桂产藿香蓟挥发油的化学成分。方法:采用水蒸汽蒸馏法提取藿香蓟挥发油,用GC-MS联用技术分离并鉴定其成分,并用面积归一化法测定成分的相对含量。结果:共鉴定出16个化合物,占挥发油总量的97.43%。结论:桂产藿香蓟挥发油主要化学成分是早熟素Ⅱ(43.29%)、石竹烯(24.48%)、α-毕澄茄油烯(10.18%)、倍半水芹烯(8.32%)、早熟素Ⅰ(7.77%)。

Objective： To analyze the chemical composition of the essential oil in Ageratum conyzoides.L from Guangxi. Methods： The essential oil of Ageratum conyzoides.L, was extracted by steam distillation and the constituents were separated and identified by GC-MS, and then their relative contents were determined by the area normalization method. Results： Sixteen kinds of compounds were identified, occupying 97.43% of the essential oil. Conclusions： The main chemical constituents of the essential oil in Ageratum conyzoides.L from Guangxi are 6,7- dimethoxy-2,2-dimethyl-2H-1-Benzopyran（43.29%）, Caryophyllene（24.48%）,ct-Cubebene（10.18%）, s-（R＊ ,s ＊ ）]-3-（1,5-dimethyl--4-hexenyl）-6-methylene-Cyclohexene （8.32%）and 7-methoxy-2,2-dimethyl-2H-1- Benzopyran （ 7.77% ）.