There are many ways of extraction but the Supercritical fluid extraction process is the most efficient and cost effective. The component that you want to extract is dissolved into the Supercritical Fluid (SF), which is then separated from the SF by pressure reduction. A Supercritical fluid is any substance at a temperature and pressure above its critical point, where distinct liquid and gas phases do not exist. The SF may be re-compressed to the extraction conditions and recycled.
Supercritical process has many advantages like higher efficiency, higher yield and purity of product and a lower processing time with minimal residual waste. CO2 is the solvent used as the SF in the process. As a Supercritical fluid, CO2 has many positives. The gas has no smell thus the extract doesn't get contaminated in any way and retains its natural aroma to the fullest. CO2 maintains a high level of purity and the whole process is Environmental friendly, not increasing the carbon footprint of the factory.
This process is best suitable for food processing industries, beverage industries, pharmaceutical industries, cosmetic and perfume industries.