超临界CO2萃取牛蒡片挥发油及气相色谱-质谱联用分析

摘要

Objective :To verify the feasibility of obtaining the volatile oil from slices of Arctium Lappa L. By supercritical carbon dioxide (C02 ) extraction and determine the chemical components of the extract. Methods: The volatile oil was obtained by supercritical CO2 and the chemical components were isolated and identified by gas chromatography-mass spec-trometry(GC-MS). Results-. The extraction rate was 0. 84 % , and 31 compounds were identified from 41 extraction peaks. Conclusion; The technology is competent for extracting the volatile oil from slices of Arctium Lappa L. By supercritical CO2 , and the oil was identified as a mixture of multiple chemical components.%目的:探讨超临界CO2萃取牛蒡片挥发油的可行性并检测其化学成分.方法:采用超临界CO2萃取得到牛蒡片挥发油,并用气相色谱-质谱联用(GC-MS)对其化学成分进行分析.结果:挥发油的萃取率为0.84％,从挥发油中分离出41个峰,鉴定出其中31种化合物.结论:超临界CO2萃取可作为一种有效提取牛蒡片挥发油的方法,其挥发油为多种类型化合物的混合物.