关键词：
野藿香;挥发油;顶空固相微萃取法;气相色谱-质谱联用
摘 要：
采用顶空固相微萃取法(headspace solid-phase micro-extraction,HS-SPME)提取野藿香中不同部位的挥发油,通过气相色谱-质谱法与Kovats色谱保留指数相结合进行定性定量分析,以峰面积归一化法计算各组分的相对含量。结果表明:在野藿香的茎、叶和花3个部位中分别鉴定出74、105种和85种化合物,分别占挥发油总峰面积的97.34%、98.80%和97.96%,其中在茎中主要成分是乙酸橙花酯(5.63%)、β-石竹烯(17.32%)、α-佛手柑油烯(7.56%)、反式-β-金合欢烯(10.2%)和氧化石竹烯(5.21%);在叶中主要是Z-柠檬醛(11.64%)、香叶醛(16.35%)、乙酸橙花酯(8.44%)、β-石竹烯(13.08%)、反式-β-金合欢烯(10.88%)和氧化石竹烯(8.34%);而在花中主要是Z-柠檬醛(21.49%)、香叶醛(27.5%)、乙酸橙花酯(9.99%)、β-石竹烯(5.47%)和反式-β-金合欢烯(10.11%),且相对含量有显著差异。
译 名：
Analysis of Chemical Composition of Volatile Oils from Different Parts of Microtoena insuavis(Hance) Prain ex Dunn by HS-SPME/GC-MS
作 者：
YE Chong,ZHAO Yang,MAO Han-bing,HE Jun,YUAN Hong-liu(Technology Center,China Tobacco Guizhou Industrial Co.Ltd.,Guiyang 550003,China)
关键词：
Microtoena insuavis(Hance) Prain ex Dunn;volatile oils;headspace solid-phase micro-extraction(HS-SPME);gas chromatography-mass spectrometer(GC-MS)
摘 要：
The volatile oils of different parts of Microtoena insuavis(Hance) Prain ex Dunn were extracted by headspace solid-phase micro-extraction(HS-SPME) method.Their chemical composition was qualitatively analyzed by GC-MS based on Kovats retention indices and was quantified by peak area normalization method.Totally 74 volatile constituents in the stems,105 in the leaves and 85 in the flowers of M.insuavis(Hance) Prain ex Dunn were separated and identified,accounting for 97.34%,98.80% and 97.96% of the total peak area,respectively.The main components in the stems were neryl acetate(5.63%),β-caryophyllene(17.32%),α-bergamotoilene(7.56%),trans-β-farnesene(10.2%) and caryophyllene oxide(5.21%),and in the leaves Z-citral(11.64%),geranial(16.35%),neryl acetate(8.44%),β-caryophyllene(13.08%),trans-β-farnesene(10.88 %) and caryophyllene oxide(8.34%),and in the flowers Z-citral(21.49%),geranial(27.5%),neryl acetate(9.99%),β-caryophyllene(5.47%) and trans-β-farnesene(10.11%).It was also observed that there were significant differences in the relative contents of chemical components in the three parts of M.insuavis(Hance) Prain ex Dunn.
