不同方法提取独活精油化学成分的比较研究

采用溶剂萃取法（PEE）、水蒸汽蒸馏（HD）法及超临界C02萃取（SFE）法从短毛独活中提取精油，并对所得产物进行了GC／MS分析．结果显示3种方法提取精油的收率分别为2．67％（PEE）、2．17％（SFE）和0．78％（HD），共鉴定出了59个化学成分，同时确定了各组分的质量分数，3种方法共有20种相同组分，其中含量最多的均为虎耳草素．

RESEARCH ON VOLATILE OIL OBTAINED FROM HERACLEUM MOELLENDORFFII WITH DIFFERENT METHODS

Three extraction ways of organic solvent extraction, supercritical CO2 fluid extraction and steam distillation were used to obtain volatile oils from Heracleum rnoellendorffii and their products were analyzed by GC/MS. The yields of volatile oils extracted with three methods were 2. 67% （PEE）,2. 17% （SFE） and 0. 78% （HD）. The result showed that 59 chemical components and their relative contents were identified by GC/MS method, and there were 20 common components in the products of the three methods, in which the main component all were Pimpinellin.