Preparation method for tricin

A kind of alfalfa element, refining treatment technology, applied in the direction of organic chemistry, etc., can solve the problems of low extraction yield, large loss of active ingredients, waste of resources, etc., and achieve the effect of high separation efficiency, cost reduction, and convenient extraction

Inactive Publication Date: 2018-11-23
湖州展舒生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, the process of extracting alfalfa is complex, the loss of active ingredients is large, the extraction rate is low, the cost is high, and resources are largely wasted

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A kind of preparation method of alfalfa designed by the present invention specifically comprises the steps:

[0018] (1) Drying, crushing and sieving the bamboo leaves, and putting them into an extraction container;

[0019] (2) Add ethanol to the material obtained in the previous step for reflux extraction twice, each time for 2 hours, extract with petroleum ether, and concentrate to an appropriate amount;

[0020] (3) Use macroporous resin to absorb the concentrated solution obtained in the previous step to remove protein;

[0021] (4) The concentrated solution obtained in the previous step is decolorized with activated carbon, and eluted with pure water and ethanol successively;

[0022] (5) Refining the liquid crystal obtained in the previous step.

Embodiment 2

[0024] A kind of preparation method of alfalfa designed by the present invention specifically comprises the steps:

[0025] (1) Drying, crushing and sieving the bamboo leaves, and putting them into an extraction container;

[0026] (2) Add methanol to the material obtained in the previous step for reflux extraction 3 times, each time for 1 hour, extract with petroleum ether, and concentrate to an appropriate amount;

[0027] (3) Use macroporous resin to absorb the concentrated solution obtained in the previous step to remove protein;

[0028] (4) Rinse the concentrated solution obtained in the previous step with pure water for decolorization, and elute with ethanol;

[0029] (5) Refining the liquid crystal obtained in the previous step.

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Abstract

The invention discloses a preparation method for tricin. The preparation method specifically comprises the following steps that (1) bamboo leaves are dried, crushed and sieved and are put into an extraction vessel; (2) a solvent is added into the materials obtained in the step (1), reflux extraction is carried out for several times, extraction is carried out by using petroleum ether, and concentration is carried out to reach a proper amount; (3) protein in a concentrated solution obtained in the step (2) is adsorbed and removed by using macroporous resin; (4) decoloration treatment is carriedout on a concentrated solution obtained in the step (3), and elution treatment is carried out by using an eluent; and (5) crystallization and purification treatment is carried out on liquid obtained in the step (4). The preparation method for the tricin has the advantages that, the content of the tricin is high, the extraction is convenient, the environment is protected, and in addition, the costis lowered; and meanwhile, the method is simple, convenient, rapid, high in separation efficiency and capable of achieving a good effect.

Description

technical field [0001] The invention relates to a method for extracting and preparing components of Chinese herbal medicines, especially a method for preparing alfalfa. Background technique [0002] Alfalfa is the active ingredient of the herb Medicago sativa. Alfalfa has the effect of treating indigestion, lung heat cough, and bladder stones. In the prior art, the process of extracting alfalfa is complicated, the loss of active ingredients is large, the extraction yield is low, the cost is high, and resources are largely wasted. Contents of the invention [0003] In order to solve the above problems, the present invention proposes an environmentally friendly and low-cost method for preparing alfalfa. [0004] A kind of preparation method of alfalfa element designed by the present invention specifically comprises the steps: [0005] (1) Drying, crushing and sieving the bamboo leaves, and putting them into an extraction container; [0006] (2) Add solvent to the materia...

Claims

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Application Information

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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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