香茅草挥发油的提取及其化学成分分析  

Extraction and GC-MS Analysis of Volatile Oils from Cymbopogon citratus(DC.)Stapf

作　　者：赵建芬[1] 韦寿莲[1] 陈子冲[1] 

机构地区：[1]肇庆学院化学化工学院,广东肇庆526061

出　　处：《食品研究与开发》2015年第19期55-58,共4页Food Research and Development

基　　金：肇庆学院自然科学研究项目(201005)

摘　　要：采用水蒸气蒸馏法提取香茅草中的挥发油,设计正交试验L9(34)优化提取条件。结果表明:料液比为1∶15(g/m L),提取时间为1.5 h,浸泡时间为24 h,香茅草挥发油的得率最高,为0.576 7%。运用气相色谱-质谱(GC-MS)联用技术对挥发油化学成分进行分析鉴定,确认香茅草挥发油中57个化学成分,主要成分为不饱和醛和醇,其中柠檬醛相对含量为37.23%,橙花醛相对含量为31.81%,柠檬醇相对含量为9.25%。The volatile oil was extracted from Cymbopogon citratus（DC.） Stapf by steam distillation, and optimized extraction condition by L9（34） Orthogonal experiments.The result showed that the optimal extraction condition was ratio of solid-liquid 1 ∶ 15, extraction time of 1.5 h, soak time of 24 h, and the yield of volatile oil was up to 0.576 7 % under this condition. The chemical components of the volatile oil were analyzed by GC-MS.As a result, 57 components were identified, which the main components were unsaturated aldehydes and alcohols, and the relative content of trans-Citral was 37.23 %,cis-Citral was 31.81 %, Lemon alcohol was9.25 %.

关 键 词：香茅草 挥发油 水蒸气提取 正交试验 化学成分 GC-MS分析 

分 类 号：TQ651[化学工程—精细化工]