CO2 reaches Supercritical Fluid (SCF) phase when its pressure and temperature go beyond some critical values. Fluid at Supercritical state exhibits both solvent power similar to liquids, and mobile diffusivity/surface tension/viscosity properties liked gas. Plus non toxic, clolorless, odorles, incombustible, and photo-chemically inactive and easy recycling natures, CO2 is an alternative to water/organic solvent as the ideal extractant. 

The advantages are:

• Effective matrix penetration to extract ingredients
• Room temperature operation to preserve activators
• Easy tunable to vary solvent power over a wide range
• CO2 is cheap and abundant in pure form
• Not flammable and not toxic
• Environmentally friendly with high recycling rate

Applications