The study of supercritical carbon dioxide extraction for Ganoderma lucidum

This study is about extraction of Ganoderma lucidum by using supercritical CO2 and the modifier ethanol. It demonstrates that modified supercritical e xtraction is suitable for the extraction of Ganoderma lucidum. The advantag e of modified supercritical extraction over nonmodified supercritical extra ction was in the polarity component extraction and enhancement of the fluid ity of extracts. Modifier supercritical extraction also has higher extracti on yield and lower extraction temperature than those of conventional solven t extractions. Although the extraction yield seems to have not increased si gnificantly when the pressure increased, the extraction pressure controlled the extraction selectivity of triterpenoid components of Ganoderma lucidum .