湖北产鲜艾与陈艾挥发油的化学成分

Chemical composition of essential oil from fresh and dried Folium Artemisia argyi from Hubei Province

应用GC-MS研究鲜艾与陈艾挥发油的化学成分,为艾叶资源的进一步开发利用提供科学依据。从两种艾叶挥发油中初步鉴定了共53个化合物,其中15个为共有化合物,含量较高的为:桉叶油素(13.8%～14.7%)、冰片(3.9%～6.6%)、4-甲基-1-(1-甲乙基)-[1S-(1α,4β,5α)]-二环[3.1.0]-庚-2-酮(15.7%～20.2%)、石竹烯氧化物(6.7%～9.2%)等。其中,还初步鉴定了文献未报道的25个化合物。研究结果表明:艾叶挥发油总量随贮存时间的延长而减少,挥发油中多数烯类、部分醇类与醛类化合物的含量也逐渐降低,而各化合物相应的醇、酮、酸等氧化产物的含量则逐渐增多。

AIM： To analyze essential oils isolated from Folium Artemisia argyi to observe the difference between the fresh and the dried. METHODS： Essential oil gained from water distillation. GC was applied to detecting oil component in comparison with standard spectrum. RESULTS： A total of 53 components were identified in the fresh and three-year reserved Folium Artemisia argyi, and 15 compounds existed in both of them. The major compounds consisted of eucalyptol （ 13.8-14.7% ）, borneol （3.9-6.6%）, 4-methyl-1-（ 1-methylethyl）-[ 1S- （ 1α,4α,5α） ] -bicyclo [ 3.1.0 ] hexan-3-one （ 15.7-20.2% ） and caryophyllene oxide （6.7-9.2%）. Finally, we identified 25 compounds which have not been reported in the literature related to Folium Artemisia argyi. CON- CLUSION： The total contents of the essential oil are gradually decreasing as storage time prolonged. Among the volatile oils, they are decreasing including a majority of the alkenes, some of the alcohols, aldehydes, and the contents of the alcohols, ketones and carboxylic acids are increasing gradually.