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Method for extracting hinokiflavone

A technology of cypress biflavonoids and an extraction method, applied in the direction of organic chemistry and the like, can solve the problems of complex extraction process, low purification purity, cumbersome steps, etc., and achieve the effects of simple extraction process, reduction of solvent consumption, and reduction of separation steps.

Inactive Publication Date: 2018-12-21
湖州展舒生物科技有限公司
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Problems solved by technology

[0003] In order to solve the problems in the existing process of extracting cypress biflavones that the steps are cumbersome, a large amount of solvent needs to be consumed, the extraction process is complicated, and the purification purity is not high, the present invention provides a simple and easy method for extracting cypress biflavones; comprising As follows:

Method used

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Embodiment

[0019] The present embodiment provides a method for extracting cypress biflavonoids, comprising the following steps: taking 3 kg of Chinese medicinal material Selaginella chinensis, and physically pulverizing; refluxing with 5 liters of 95% ethanol solution for 2 hours, and extracting twice;

[0020] Concentrate the extracted product, the concentration detected by HPLC is 62% at this time, then crystallize with 40% ethanol, and filter, the concentration detected by HPLC is 82% at this time; The pore adsorption resin is eluted; the eluate is concentrated and crystallized to obtain the Hinoki biflavonoids extract, and the purity of Hinoki biflavonoids reaches 98.28% at this time; and the extraction process of the present invention is simple, and 40% of the cypress biflavonoids are directly used in the extraction process. Ethanol is used for crystallization, which reduces the separation steps, and reduces the amount of solvent, which is more cost-effective; and uses macroporous ad...

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Abstract

The invention provides a method for extracting hinokiflavone. The method includes the steps of (1) taking traditional Chinese medicinal material herba selaginellae for physical pulverization; (2) performing reflux extraction by an ethanol solution for two times; (3) concentrating the extracted product, crystallizing the concentrated product by ethanol, and filtering the crystalized product; (4) eluting the product in step (3) by macroporous adsorption resin; (5) concentrating and crystallizing the eluate to obtain hinokiflavone extract. The method has the advantages that the purity of the obtained hinokiflavone reaches 98.28%; the extraction process is simple, crystallization is directly carried out with 40% ethanol in the extraction process, and accordingly, the separation steps are reduced; the consumption of solvents is reduced, and the cost is reduced; the macroporous adsorption resin is used for separation, and the product purity is improved.

Description

technical field [0001] The invention relates to plant extracts, in particular to a method for extracting cypress biflavonoids. Background technique [0002] Hinoki biflavone, English name: hinokiflavone; It is mainly extracted from natural plants, and the existing extraction method has complicated steps, needs to consume a large amount of organic solvent, and has extremely low efficiency, and the purity of the obtained cypress biflavonoids is not high. The method for extracting cypress biflavonoids provided by the invention is simple and convenient, consumes less solvent, and has high product purity. SUMMARY OF THE INVENTION [0003] In order to solve the problems of complicated steps in the existing cypress cypress biflavonoids extraction process, consumption of a large amount of solvent, complicated extraction process and low purification purity, the present invention provides a simple and feasible method for extracting cypress cypress bisflavonoids; comprising: as fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D311/30C07D311/40
CPCC07D311/30C07D311/40
Inventor 吴建华
Owner 湖州展舒生物科技有限公司
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