Extractive of ginkgo tree leaves, prepn. method and application thereof

A technology of ginkgo biloba leaves and extracts, which is applied in the field of preparation of ginkgo biloba extract injections and freeze-dried powder injections, can solve the problems of low total amount of active ingredients, lack of industrialization conditions, and unreasonable process routes.
CN1911257AActive Publication Date: 2007-02-14BEIJING SUNHO PHARMA
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BEIJING SUNHO PHARMA
Publication Date
2007-02-14

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Abstract

A gingko leaf extract used for preparing liquid injection or freeze-dried powder injection is prepared from gingko leaves through breaking, thermal reflux extracting with the aqueous solution of alcohol, vacuum volatilizing of solvent, depositing in ammonia water to remove polyphenol, extracting with n-hexane to remove ginkgolic acid, adsorbing by macroreticular resin, separating, refining, ultrafiltration and spray drying.
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Description

technical field

[0001] The invention relates to a production process of ginkgo leaf extract and a preparation method of medicinal preparations, in particular to a preparation method of ginkgo leaf extract injection and freeze-dried powder injection. Background technique

[0002] Blood circulation disorders such as cardiovascular and cerebrovascular diseases and peripheral blood vessels are one of the most common clinical diseases and a major class of diseases that affect people's health and longevity. The role of Ginkgo biloba extract and its preparations in cardiovascular and cerebrovascular diseases and peripheral vascular diseases has attracted more and more attention from all over the world. Ginkgo biloba (Ginkgo biloba L.) is an ancient relic plant, also known as ginkgo tree. Ginkgo biloba is a rare species in my country and a precious medicinal plant resource in the world. Especially in the past 40 years, domestic and foreign studies on the chemical components and ph...

Claims

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