High pressure extraction of vitamin E-rich oil from Silybum marianum

摘要

The efficiency of high pressure extraction in the production of oil with a high concentration of vitamin E, from seeds of Silybum marianum, was investigated. The solvents used in extraction were liquid or supercritical carbon dioxide and liquid propane. Oper- ating parameters were 100, 200, 300 bar and 25, 40, 60 and 80 deg. C for CO_2 and 60, 150, 200 bar and 40, 60 and 80 deg. C for propane, respectively.