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Inventors: Wang X, Ji WH, Zhao HQ, Geng YL, Ma XL, Xie HK, Chen LX
Patent Title: Method for removing and enriching ginkgolic acid from ginkgo biloba extract
Publication date: 2014
Publication number: CN104189026

Abstract: The invention discloses a method for removing and enriching ginkgolic acid from ginkgo biloba extract. The method comprises the following steps: carrying out column filling by taking a molecularly imprinted polymer of ginkgolic acid as column chromatography packing; then filling the column with a ginkgo biloba extracting solution; leaching the column with a mixed solution of cyclohexane and ethyl alcohol in a volume ratio of 10 to 1; finally, eluting the chromatographic column with alcohol so as to obtain an effluent, namely ginkgolic acid, wherein the alcohol can be of ethyl alcohol, isopropanol, n-propyl alcohol or n-butyl alcohol. A molecular imprinting technique is applied to the removal of ginkgolic acid during ginkgo biloba processing for the first time, so that compared with the traditional ginkgolic acid removal method, according to the method disclosed by the invention, ginkgolic acid with high purity is prepared while ginkgolic acid is removed by virtue of the directional enrichment effect of the molecularly imprinted-solid phase extraction column, thereby providing the source of a raw material for clinical pharmacological research on ginkgolic acid.
URL: http://worldwide.espacenet.com/publicationDetails/biblio?DB=EPODOC&II=0&ND=3&adjacent=true&locale=en_EP&FT=D&date=20141210&CC=CN&NR=104189026A&KC=A

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