Method for extracting magnolol and honokiol from magnolia officinalis

A technology of honokiol and magnolol, which is applied in chemical instruments and methods, preparation of organic compounds, organic chemistry, etc., can solve the difficulty of separating magnolol and honokiol, the large amount of organic solvent used, and the extraction time Long and other problems, to achieve the effect of shortening the production cycle, less corrosive equipment, and short extraction time
CN101759532AActive Publication Date: 2010-06-30ZHEJIANG UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ZHEJIANG UNIV OF TECH
Publication Date
2010-06-30

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Abstract

The invention discloses a method for extracting magnolol and honokiol from magnolia officinalis; the method includes that: magnolia officinalis powder and solid phase weak base reagent are mixed according to the weight ratio of 1:0.01-1, the mixture is grinded to obtain powder with granularity analysis result D90 of 10-200 um, and then water is added to the powder, the mixture is stirred sufficiently and is centrifuged to obtain sediment A and supernate A, acid X with pH value of 1.0-6.0 is added to the supernate A, then the supernate is centrifuged after standing to obtain sediment B as magnolol extractive. The invention firstly adopts mechanical chemical reaction technique to extract magnolol, and then adopts alkaline process to extract honokiol, has the advantages of high extraction rate, good separation effect of magnolol and honokiol, and short production cycle, and is the extraction and separation process with good popularization and application prospect.
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Description

(1) Technical field

[0001] The invention relates to a method for extracting magnolol and honokiol from magnolia bark. (2) Background technology

[0002] Magnolia officinalis warm in nature, bitter in the mouth, pungent, enters spleen, stomach, lung. It has good anti-tumor, anti-virus, anti-caries, analgesic, anti-inflammatory and other pharmacological activities. At present, it is widely used in food, medicine, daily chemical, health care products and many other aspects. The main components in magnolia bark are phenolic substances, including magnolol (magnolo1) (formula II), honokiol (honokio1) (formula I), isomagnolol (iso-magnolo1), 8,9-di Hydroxydihydrohonokiol, 8,9-dihydroxy-7-methoxydihydrohonokiol, 8,9-dihydroxydihydrohonokiol, and the like. Among them, magnolol and honokiol account for more than 95% of the total magnolol, and are the main medicinal components. The structural formulas of magnolol and honokiol are as follows:

[0003]

[0004] At present, there ...

Claims

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