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A method for extracting resveratrol from Polygonum cuspidatum

A technology of resveratrol and Polygonum cuspidatum, which is applied in the field of extracting resveratrol from Polygonum cuspidatum, can solve the problems of high operating cost, large amount of solvent, and complex components of finished products, so as to improve production efficiency, reduce fermentation time, and simplify production The effect of the process

Active Publication Date: 2018-06-26
四川维尔仕生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The extraction time of alcohol extraction is long, the amount of solvent is large, and the extraction rate is low; the extraction rate of water extraction is low, and the components of the finished product are complex; supercritical fluid technology relies on special equipment, high pressure, and high operating costs

Method used

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  • A method for extracting resveratrol from Polygonum cuspidatum

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The method for extracting resveratrol from Polygonum cuspidatum described in the application comprises the following steps:

[0026] (1) Crushing: the raw materials of Polygonum cuspidatum are first screened, free from moths and sand, and then crushed to 6-8 meshes for later use;

[0027] (2) Fermentation: Put the pulverized Polygonum cuspidatum powder into a fermenter, ferment with hydrolytic biological enzymes for 5 days under warm water conditions, and filter to obtain fermented slag. In the fermentation step, the addition amount of hydrolytic biological enzymes is: Add 4Kg of hydrolytic biological enzymes to the Polygonum cuspidatum powder, and control the temperature of the fermentation process at 30-40°C. In addition, it is necessary to maintain air circulation in the fermentation room and maintain a certain air humidity;

[0028] (3) Extraction: take the fermented residue after fermentation, add ethyl acetate, the ethyl acetate added in each ton of the fermented ...

Embodiment 2

[0034] The method for extracting resveratrol from Polygonum cuspidatum described in the application comprises the following steps:

[0035] (1) Crushing: the raw materials of Polygonum cuspidatum are first screened, free from moths and sand, and then crushed to 6-8 meshes for later use;

[0036] (2) Fermentation: send the pulverized Polygonum cuspidatum powder into a fermenter, ferment with hydrolytic biological enzymes for 4 days under warm water conditions, and filter to obtain fermented slag. In the fermentation step, the addition amount of hydrolytic biological enzymes is: Add 4Kg of hydrolytic biological enzymes to the Polygonum cuspidatum powder, and control the temperature of the fermentation process at 30-40°C. In addition, it is necessary to maintain air circulation in the fermentation room and maintain a certain air humidity;

[0037] (3) Extraction: take the fermented residue after fermentation, add ethyl acetate, the ethyl acetate added in each ton of the fermented...

Embodiment 3

[0043] The method for extracting resveratrol from Polygonum cuspidatum described in the application comprises the following steps:

[0044] (1) Crushing: the raw materials of Polygonum cuspidatum are first screened, free from moths and sand, and then crushed to 6-8 meshes for later use;

[0045](2) Fermentation: Put the pulverized Polygonum cuspidatum powder into a fermenter, ferment with hydrolytic biological enzymes for 6 days under warm water conditions, and filter to obtain fermented slag. In the fermentation step, the addition amount of hydrolytic biological enzymes is: Add 4Kg of hydrolytic biological enzymes to the Polygonum cuspidatum powder, and control the temperature of the fermentation process at 30-40°C. In addition, it is necessary to maintain air circulation in the fermentation room and maintain a certain air humidity;

[0046] (3) Extraction: take the fermented residue after fermentation, add ethyl acetate, the ethyl acetate added in each ton of the fermented r...

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Abstract

The invention discloses a method for extracting resveratrol from polygonum cuspidatum. The method comprises the operation steps of smashing, fermentation, extraction, primary concentration, secondary concentration, and drying and smashing. The temperature in the fermentation process is controlled between 30 DEG C and 40 DEG C, the fermentation lasts 4-6 days, extraction is conducted three times through a continuous type countercurrent screw extractor, further purification is conducted through the primary concentration and the secondary concentration, the yield of resveratrol is 0.9%, the purity is 99%, the fermentation time is greatly shortened, the production efficiency is improved, and the production process is simplified.

Description

technical field [0001] The invention relates to the field of extracting resveratrol from natural plants, in particular to a method for extracting resveratrol from Polygonum cuspidatum. Background technique [0002] Resveratrol, molecular formula C 14 h 12 o 3 , is a kind of active polyphenolic substances, with two conformations of cis and trans, of which the trans is a stable structure with biological activity, and its activity intensity is 7-10 times that of the cis, and its structural formula is shown in the following formula: [0003] [0004] Resveratrol is a chemopreventive agent for tumors, and it is also a chemopreventive agent for reducing platelet aggregation, preventing and treating atherosclerosis, cardiovascular and cerebrovascular diseases, and also has preventive effects on osteoporosis, acne and senile dementia , has antiviral and immunomodulatory functions. It acts on a monomeric anti-aging enzyme in the human body, thereby playing a potential role in ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12P7/22C07C39/21C07C37/68
CPCC07C37/004C12P7/22C07C39/21
Inventor 刘剑锋
Owner 四川维尔仕生物科技有限公司
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