Research progress on the supercritical CO_2 extraction in phytochemicals

The supercritical CO2 extraction technology in phytochemicals was reviewed, in order to provide references for phytochemicals extraction.The principle of extraction was discussed, and combined with practical examples, the effect of extraction temperature, pressure and entrainer on the supercritical carbon dioxide fluid extraction was stated, and the prospect and existing problems of supercritical CO2 extraction technology in phytochemicals were discussed as well. The results showed that it was a kind of high efficient separation technology and it had certain prospects in the phytochemicals.