Title: Extraction of berberin by salting out with biacid
Application Number: 91100760 Application Date: 1991.02.02
Publication Number: 1063871 Publication Date: 1992.08.26
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: A61K31/44,A61K35/78,C07D455/03
Applicant(s) Name: Wang Zhendong Address: 153000
Inventor(s) Name: Qiu Yuzhang, Su Riheng
Attorney & Agent: LV FENGYUN
Abstract:
     The present invention refers to a method for extracting Coptis chinensis by soaking with two acids and salt. It uses root of phellodendron amurense tree as main raw material, which is first soaked in sulfuric acid, then in hydrochloric acid, followed by additional soaking after the addition of table salt. After the resultant filtrate is precipitated, it is agitated with the addition of active carbon to perform wash and adsorption. The Coptis chinensis thus made has reduced cost and enhanced purity and quality.
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