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Novel process for extracting puerarin from pueraria mirifica

A technology of puerarin and wild puerarin, which is applied in the molding or processing of animal feed, preparation of sugar derivatives, sugar derivatives, etc., can solve the problems of complex extraction process of puerarin, unutilized by-products, expensive raw materials, etc. Reasonable temperature, no three waste emissions, low equipment requirements

Inactive Publication Date: 2004-03-24
卓宇哲
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Japan extracts puerarin series products from soybeans, but the cost is relatively high, mainly because the raw materials are more expensive
The puerarin extraction process reported in China is relatively complicated, the yield is low, and the by-products are not used, and it has been proved unsuccessful by practice

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] The process for extracting puerarin from wild kudzu root comprises the following steps:

[0021] (1) Cold pressing and crushing

[0022] After the Pueraria mirifica root is washed, dried and crushed, it is sent to a storage tank for use after being processed by a plate-and-frame filter press and microporous precision filtration;

[0023] (2) Extraction

[0024] Send Pueraria mirifica into a multi-functional extraction tank, add twice the amount of alcohol solvent, and steam for reflux extraction. The temperature is maintained at 65±3°C, and the concentration of puerarin in the extract will not increase. This cycle is carried out five times in total. ,

[0025] (3) concentrated

[0026] The extract is sent to the shell and tube vacuum evaporator for evaporation and concentration, the concentrated solution is sent to the storage tank, and the recovered alcohol is sent back to the alcohol storage tank for recycling.

[0027] (4) Alcohol recovery

[0028] Steam is intr...

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Abstract

The technological process for extracting puerarin from wild pueraria root includes the following steps: cold-pressing and pulverizing raw material, reflux extraction by using ethyl alcohol at 59-78 deg.C, evaporation and concentration, recovering ethyl alcohol, separation and fermentation so as to obtain the invented product whose pueraria content is greater than 93.8%. At the same time the residual impurity produced by extraction of puerarin can be fermented by adding yeast, and can be made into multivitamin feed.

Description

technical field [0001] The invention belongs to the technical field of extraction of effective components of traditional Chinese medicine, in particular to an extraction process of puerarin, an effective component of Pueraria lobata in traditional Chinese medicine. technical background [0002] Puerarin is a biological raw material drug that has been extensively researched and developed by various countries in the world in the past ten years, and is specially used by the pharmaceutical industry to overcome cardiovascular and cerebrovascular diseases, various cancers, and ophthalmic miscellaneous diseases. This product has multiple advantages that cannot be replaced by all chemical drugs: 1. The biopharmacological active ingredients are diversified, and the main ingredients can prevent abnormal increase of vascular permeability. Inhibit the aggregation of lesion cells and platelets, increase the oxygen content and saturation in the blood, improve microcirculation and promote ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K10/10A23K40/00C07H1/08C07H17/07
Inventor 卓宇哲
Owner 卓宇哲
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