前胡挥发油的超临界CO_2流体萃取及其成分分析

Supercritical Fluid CO_2 Extraction of Radix Peucedani Volatile Oil and Componens Analysis

采用正交设计优化前胡中挥发油的萃取工艺条件,确定了超临界CO2萃取前胡挥发油的最佳条件：萃取压力35 MPa,萃取温度50℃,选择无水乙醇为夹带剂,夹带剂用量为20%,萃取时间为90 min,解析压力为7-8 MPa,解析温度为45℃,萃取率为37.58%。GC/MS法分析前胡油的主要成分为à-蒎烯、à-月桂烯、蒈烯、石竹烯等,质量分数约为76.32%。与传统提取方法相比,应用超临界萃取前胡油不仅简便、提取率高,而且得到的膏状萃取物香气纯正。

In this manuscript,the optimum supercritical fluid CO2 extraction process parameters of Radix Peucedani volatile oil was acquired by Orthogonal experimental design and described as follows：pressure 35 MPa,and 50 ℃ for 90 min,the dosage of Absolute ethyl alcohol entrainer was 20%,the separate temperature 45 ℃,the pressure 7-8 MPa,the extraction rate was 37.58%,76.32% of them are à-Pinene,á-Myrcene,Carene,Caryophyllene and so on.Compared with that of traditional method,the method provided here was a simple,efficient,and the ointment extracte with pure fragrance for yield oil.