| abstract |
A method for preparing low polar ginsenoside and aglucon thereof by catalytic pyrolysis, characterized in that: raw material ginsenoside was subjected to braize at high temperature of 110-180°C, wherein using acid as catalyst. The present invention definites the catalyst which necessary for high temperature pyrolysis of ginsenoside, solves the mechanism or essential problems associated with high temperature pyrolysis of natural ginsenoside in the processing technology of dried steamed root of Panax ginseng (Araliaceae), provides a handy and high effective method for preparing low polar ginsenoside. Using the method provided by the present invention to prepare low polar ginsenoside, technology is handy, quality is controllable, percent conversion of material aglucon is high, total yield of aglucon as primary product is high, and cost is low; when combining with isolation and purification technology, can prepare monomeric low polar ginsenoside in bulk. The prepared low polar ginsenoside monomer or mixture thereof both can combine with various official medicinal or food excipient and accessory ingredient to prepare various dosage form for medical, cosmetic and functional food use, and can be used as material for synthesize other bioactive compound. |