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Preparation method of galuteolin

A technology of luteolin and ethanol, which is applied in the field of preparation of luteolin, can solve problems such as complex process, waste of resources, and large loss of active ingredients, and achieve the effects of high separation efficiency, convenient extraction, and cost reduction

Inactive Publication Date: 2018-11-27
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 luteolin is complicated, the loss of active ingredients is large, the extraction yield 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 luteolin disclosed by the present invention specifically comprises the following steps:

[0018] (1) Dry the Chinese herbal medicine honeysuckle for 10 hours, crush, sieve, and put it into an extraction container;

[0019] (2) adding ethanol to the above materials for reflux extraction to obtain an extract; adding ethanol to the filter residue for extraction to obtain an extract; combining the above two extracts and concentrating to an appropriate amount;

[0020] (3) Put the concentrated solution into a device with macroporous adsorption resin for adsorption, and inject ethanol for elution;

[0021] (4) Decolorize the above-mentioned eluted filtrate with activated carbon;

[0022] (5) Filter the decolorized liquid for impurities, adjust it to neutral, and concentrate the filtrate;

[0023] (6) Crystallization refining treatment.

Embodiment 2

[0025] A kind of preparation method of luteolin disclosed by the present invention specifically comprises the following steps:

[0026] (1) Dry the Chinese herbal medicine honeysuckle for 10 hours, crush, sieve, and put it into an extraction container;

[0027] (2) adding methanol to the above materials for reflux extraction to obtain an extract; adding methanol to the filter residue for extraction to obtain an extract; combining the above two extracts and concentrating to an appropriate amount;

[0028] (3) Put the concentrated solution into a device with macroporous adsorption resin for adsorption, and inject methanol for elution;

[0029] (4) Decolorize the above-mentioned eluted filtrate with activated carbon;

[0030] (5) Filter the decolorized liquid for impurities, adjust it to neutral, and concentrate the filtrate;

[0031] (6) Crystallization refining treatment.

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PUM

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Abstract

The invention discloses a preparation method of luteolin. The preparation method of luteolin specially includes the following steps that 1, honeysuckle flowers as traditional Chinese medicinal materials are dried for 10 hours, crushed, sieved and loaded in an extraction container; 2, ethyl alcohol is added in the material obtained in the previous step for reflux extraction, a extracting solution is obtained, ethyl alcohol is added in filter residues to obtain the extracting solution, and the two extracting solutions are combined and condensed to proper amount; 3, the extracting solutions are loaded in a device with macroporous adsorption resin for adsorption, and ethyl alcohol is added for elution; 4, filtrate obtained after elution is subjected to decoloration by using activated carbon; 5, impurities in the obtained decolored solution is filtered, then the decolored solution is adjusted to be neutral, and the filtrate is condensed; 6, crystallization refining treatment is performed. According to the disclosed preparation method of luteolin, the content of the luteolin is high, extraction is convenient, environmental protection and low cost are achieved, meanwhile the method is simple, fast and high in separation efficiency, and good effects are achieved.

Description

technical field [0001] The invention relates to a method for extracting and preparing components of Chinese herbal medicines, in particular to a method for preparing luteolin. Background technique [0002] Honeysuckle is a kind of traditional Chinese medicine, and the content of luteolin in honeysuckle is relatively large, which can be used for the extraction of luteolin. Luteolin has a strong effect of sterilizing the respiratory tract, lowering cholesterol, and enhancing capillary relaxation. In the prior art, the extraction process of luteolin is complex, 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 luteolin. [0004] A kind of preparation method of luteolin disclosed by the present invention specifically comprises the following ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07H1/08C07H17/07
CPCC07H1/08C07H17/07
Inventor 吴建华
Owner 湖州展舒生物科技有限公司