A Continuous Fractionation of Ginsenosides and Polysaccharides From Panax ginseng Using Supercritical Carbon Dioxide Technology

A continuous supercritical carbon dioxide (SC-CO2) fractionation was conducted to obtain ginsenosides and polysaccharides from Panax ginseng extract. P. ginseng was mixed with ethanol at a ratio of 1:4 (volume by weight) for 24 h to yield ethanol extract. SC-CO2 fractionation was performed using an orthogonal design to obtain optimal fractionation parameters. The conditions were: three different temperatures (40, 50 and 60C), three different...