Title: Supercritical fluid extraction method of high-purity sterol
Application Number: 99124036 Application Date: 1999.11.19
Publication Number: 1263103 Publication Date: 2000.08.16
Approval Pub. Date: Granted Pub. Date: 2003.06.11
International Classifi-cation: B01D3/34,C07J9/00,C07J75/00
Applicant(s) Name: Shanghai Jiaotong Univ. Address: 200030
Inventor(s) Name: Zhao Yaping
Attorney & Agent: mao cuiying
Abstract:
     The preparation method of refined high-purity sterol by utilizing supercritical fluid is characterized by using by-product obtained in the course of processing vegetable oil as raw material, according to that sterol and other components are different in soubility in supercritical fluid making purification and refinement, and its optimum extraction agent is CO2, extraction pressure is 15-35 MPa, extraction temp. is 32-75 deg.C, separation temp. is 40-60 deg.C, separation pressure is 4-6MPa, and in the course of extraction the synergist alcohol or ketone can be added. The obtained sterol is high in purity and yield.
Time: 4