Principle

Supercritical CO2 extraction means CO2 goes to a supercritical phase after pressurization and heating temperature above critical points. CO2 at supercritical phase have solubility powers similar to liquid organic solvents, but with higher diffusivities, higher transfer efficiency, lower viscosities, and lower surface tension.  With advantages of non-toxic, colorless, odorless, incombustibility, non-photochemical reaction, eco-friendly and easy recycling, CO2 is now considered as the best solvent for Supercritical Fluid Extraction technology. 

Green Environmental Protection Technology

Supercritical CO2 extraction has no disadvantages of traditional extraction method. Ex, the biological activity is easy to be damaged in high-temperature distillation extraction, the organic solvent left in solvent extraction will influence the purity of extract, the aroma of esters is easy to vanish away in expression extraction.
Supercritical CO2 extraction can extract high purity natural compounds easily. There is no solvent residues and little thermal degradation of sensitive compounds will occur. Separation and purification of totally natural and healthy compounds can also be achieved. Supercritical CO2 extraction is the green and epoch-making technology today and tomorrow.

Application 

Advantages

●Effectively bioactive ingredients extraction with lower viscosity and higher penetration to the matrix 
●Low temperatures extraction condition which result in less degradation of thermally-labile components in the extracts.
●Green Solvent with CO2 recovery rate over 95%
●No solvent residue in the extract. This means lower operating costs for clean-up and the reduction in post-processing steps. 
● Non-toxic, high safety degree, non-flammable, non-explosive.
●Selective extraction by manipulating the operating conditions (temperature, pressure).