北五味子的超临界CO_2萃取研究

Extraction of Schisandra Chinensis (Turcz) by supercritical carbon dioxide

目的:研究超临界CO2萃取法在北五味子提取工艺中的应用。方法:采用正交设计实验法,以北五味子中提取的五味子醇甲总量为评价指标,对萃取温度,萃取压力,分离温度3个因素进行考察。结果:优化北五味子的提取工艺条件为A3B2C1,即北五味子粗粉经超临界CO2流体萃取,萃取压力25MPa,萃取温度50°C,分离压力7MPa,分离温度60°C,萃取2.5h,CO流量15kg·h-1。结论:超临界CO流体萃取法在北五味子提取工艺中的应用是可行的。

AIM：To study the extraction of Schisandra Chinensis （Turcz） using supercritical carbon dioxide as extracting ageat. METHODS ： The study was carried out through orthogonal test design, the content of schizandrin from Schisandra Chinensis （Turcz） was selected by 3 influencing factors, extract temperature, extract pressure and separation temperature. RESULTS： The optimal condition for the extraction as A3B2C1 Schisandra Chinensis （Turcz） was extracted by supercritical carbon dioxide, extract pressure was 25MPa, extract temperature was 50℃, separation was 7 MPa, separate temperature was 60℃, extract time was 2.5h and runing amount of CO2 was 15kg ·h^-1. CONCLUSION： It is feasible that supercritical carbon dioxide is used in the preparation of Schisandra Chinensis （Turcz）.