Supercritical extraction (SFE) with the use of carbon dioxide is intended for obtaining extracts from plant raw materials. Carbon dioxide is a completely inflammable and non-toxic gas. Its low critical parameters make it the perfect medium for the extraction of precious plant raw materials. Dissolving the various substances can be controlled by changing the process parameters. Traditional extraction methods in the solid-liquid system do not provide this opportunity. Adding a small amount of water or organic solvents such as methanol, ethanol, acetone, acetonitrile, ethyl ether, dichloromethane to carbon dioxide also allows for the extraction of polar compounds such as phenols, alkaloids or glycosides.
The extraction process is conducted in high-pressure equipment which consists of an extractor, heat exchanger, circulation pump, cooling system, separators and expansion valves. The extraction process is carried out as batch production.
Supercritical extraction of plant raw materials with carbon dioxide
Supercritical extraction (SFE) with the use of carbon dioxide is intended for obtaining extracts from plant raw materials. Carbon dioxide is a completely inflammable and non-toxic gas. Its low critical parameters make it the perfect medium for the extraction of precious plant raw materials. Dissolving the various substances can be controlled by changing the process parameters. Traditional extraction methods in the solid-liquid system do not provide this opportunity. Adding a small amount of water or organic solvents such as methanol, ethanol, acetone, acetonitrile, ethyl ether, dichloromethane to carbon dioxide also allows for the extraction of polar compounds such as phenols, alkaloids or glycosides.