The Application Research Analysis of Natural Products Extraction Based on Supercritical CO2 Extraction Technique

Supercritical CO2 extraction possesses the advantages of high efficiency, energy saving, cleanness, gentle operation conditions and the like, which attracts more and more attention, and gradually becomes one of the green technologies that replace the traditional solvent methods in the extraction of active substances. In order to further understand the application status of supercritical CO2 extraction technology, this thesis introduces the principle of supercritical fluid extraction (SFE) technology. Based on the types of extractive natural products, the application of the technology in plant essential oil, natural pigment and alkaloid extraction is also reviewed. The thesis describes the advantages of this technology compared with the traditional solvent methods, and prospects its application foreground of industrialization, which provides the references for the application of supercritical CO2 extraction technique in natural products.