Preparation of high-purity caffeoyl guinic acid from honeysuckle coarse extract
Title：
Preparation of high-purity caffeoyl guinic acid from honeysuckle coarse extract
Application Number：
 200510105658
Application Date：
 2005/09/29
Announcement Date：
 2006/03/15
Pub. Date：
 2007/09/19
Publication Number：
 1746149
Announcement Number：
 100338017
Grant Date：
 2007-9-19
Granted Pub. Date：
 2007-9-19
ApplicationType：
 Invention
State/Country：
 94[China|shenzhen]
IPC：
 C07C 69/732, C07C 67/58
Applicant(s)：
 Shenzhen Academy Tsinghua Univ.
Inventor(s)：
 Chen Fuming, Yang Haiyan, Sun Haifeng, Wang Aiguo
Key Words：
 honeysuckle, coarse extract, high-purity, caffeoyl guinic acid, preparation
Abstract：
 Production of high-purity chlorogenic acid from honeysuckle crude extract is carried out by dissolving honeysuckle from deionized water, agitating, preparing solution of honeysuckle crude extract, adding into alcohol, alcohol depositing, filtering, heating filtrate, steaming out alcohol, regulating pH of residual solution to 1-4, multi-stage and counter-current extracting from mixed solvent containing acetic ether, merging extract, concentrating and recovering acetic ether, obtaining concentrate S1, adding water into concentrate S1, preparing water phase, flowing above water phase by chromatograph column, eluting by eluent, collecting stripping liquid fractionally, concentrating the collected stripping liquid, crystallizing, drying and obtaining product with chlorogenic acid content 50-92%. It costs low, has better purity and can be used for industrial production.
Claim：
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