泥胡菜挥发油化学成分GC-MS分析

Component Analysis of Essential Oil from Hemistepta lyrata Bunge by GC-MS

目的分析泥胡菜挥发油成分的化学组成,比较泥胡菜地上部分和全草之间挥发油成分差异。方法 GC-MS联用技术分析泥胡菜全草挥发油化学成分,归一法分析挥发油各成分的相对含量。结果从泥胡菜全草鉴定出60种成分,占其挥发油总质量的71.86%。主要含有倍半萜类,脂肪酸类以及芳香类化合物等,其中含量相对较高的倍半萜类化合物有33种,占挥发油的17.79%;脂肪酸类化合物有11种,占挥发油的37.11%。泥胡菜的地上部分与全草挥发油有25个不同成分,主要是倍半萜类化合物,占其挥发油的6.32%。结论泥胡菜全草与地上部分挥发油成分组成上存在差异,地上部分无法代替全草应用于临床。

Objective To analyse the chemical compositions of essential oil extracted from Hemistepta lyrata Bunge（HLB） and compare the components of essential oil extracted from its aerial parts and entire plants.Methods The components of essential oil extracted from the entire plants of HLB were analyzed by GC-MS and the relative content of each component was calculated by area normalization.Results 60 compounds were identified in the volatile oil from the entire plants of HLB,which accounted for 71.86% of the total essential oil.Most of the components were sesquiterpene,aliphatic acids and aromatics compounds,and the contents of sesquiterpene and aliphatic acids were relatively higher,which accounted for 17.79%,37.11% of the essential oil respectively.There were 25 different components between the aerial parts and entire plants of HLB,and most of them were sesquiterpene,which accounted for 6.32% of the essential oil.Conclusion There are some differences in the components of essential oil between the aerial parts and entire plants of HLB,and the aerial parts could not replace the entire plants in clinical application.