Extraction and separation technology of aniseed shikimic acid(專利)

Extraction and separation technology of aniseed shikimic acid

Patent Number(s): CN100999461-A
Inventor(s): MIN Y, LIU W, YANG J
Patent Assignee(s) and Codes(s):HONGHE INST (HONG-Non-standard)
Derwent Primary Accession Number: 2008-A50137 [04]
Abstract: NOVELTY - The invention claims an extraction and separation technology of aniseed shikimic acid. Its main steps are to degrease the dry crashed aniseed at 40~45 centigrade, 25~35 MPa through supercritical carbon dioxide to get edible flavor; leaching extract by heating and refluxing at 50~60 centigrade through carbinol after degreasing; extracting at 50~55 centigrade through ethyl acetate and then filtering and separating ethyl acetate to get solid extract; adding carbinol at 50~60 centigrade, heating and churning up until extract dissolves and then filtering, placing the filtered liquid still and cooling to get crystal-the coarse shikimic acid; dissolving the coarse shikimic acid at 45~50 centigrade through mixed solvent of chloroform and carbinol, placing naturally, cooling crystal and then purifying to get purified product, whose purity is larger than 95%. The invention adopts supercritical carbon dioxide to degrease, so that the aniseed oil can be used as flavor and can be eaten directly, it has no harm to human body. This technology improves the use of aniseed, improves degreasing efficiency and reduces the effect of liposoluble ingredients to the later operation so that it improves the recovery rate.
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International Patent Classification: A61K-036/185; A61K-036/57; A61K-131/00; C07C-051/42; C07C-062/00; C07C-062/04
Derwent Class Code(s): B04 ; B05
Derwent Manual Code(s): B04-A08C2; B04-B01C1; B10-C04A; B11-B03
Patent Details:
Patent Number
Publ. Date
Main IPC
Week
Page Count
Language
CN100999461-A
18 Jul 2007
C07C-051/42
200804


Application Details:
CN100999461-A
CN10065617
13 Jan 2007
Priority Application Information and Date:
CN10065617
13 Jan 2007