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Extraction method of resveratrol

A technology of resveratrol and extraction method, applied in chemical instruments and methods, preparation of organic compounds, organic chemistry, etc., can solve the problems of long extraction time, complicated technical operation, low conversion rate, etc., and achieve high product purity, The effect of simple operation procedure and low production cost

Inactive Publication Date: 2010-01-20
张守力
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] An object of the present invention is to provide a kind of white quinoa quinoa that is easy to operate, reliable in transformation, high in product recovery rate, and can meet the requirements of industrialized production for solving the problems of the above-mentioned prior art such as long extraction time, low conversion rate and complicated technical operation. Extraction method of retrol

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] 1 kg of raw material of Polygonum cuspidatum, pre-treated, rinsed to remove dust, sliced, then added 800ml of 80% ethanol to extract for 2 hours, then refluxed with 500ml of 80% ethanol for 1 hour, concentrated, the concentrated solution was diluted with 100ml of water, added to the Carry out enzymatic hydrolysis for 5 hours in the hydrolysis pond of the enzymatic hydrolysis solution of 0.02kg cellulase. Transfer the enzymolyzed solution into an extraction tank, heat at 100°C for 30 minutes, filter while hot, add activated carbon to decolorize, recrystallize repeatedly with alcohol, and dry under reduced pressure to obtain 9.2 g of 98% finished product.

Embodiment 2

[0023] After rinsing off the dust, cut into slices with a thickness of 2mm or make coarse powder for later use; slice 10kg of raw material Polygonum cuspidatum or make coarse powder and use three parts of 75% ethanol of 5000ml each to reflux extract 3 times, each The second reflux time is 1.5h. Combine the extracts, then concentrate the combined solution to a thick paste, which is 1000ml; add 10 times of water to the thick paste extract, and add 0.3kg of compound enzyme to a part of the water to prepare an enzymolysis solution for enzymolysis. The compound enzyme is a mixture of 0.15kg cellulase and 0.15kg distiller's yeast; the enzymolysis time is 5 hours, the temperature is 50°C, the enzymolysis solution is heated to 80°C and suction filtered while it is hot, and decolorized with activated carbon to obtain a crude product. The crude product was repeatedly recrystallized by ethanol three times to obtain the refined product. The fine product is dried under reduced pressure to...

Embodiment 3

[0025] The enzymolysis liquid is three compound enzymes of cellulase, amylase and acid protease, the ratio of the three enzymes is 1:2:3, and the rest are the same as in Example 2.

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Abstract

The invention provides a preparation method of resveratrol, which relates to the field of medicament preparation and solves the problems of low preparation conversion rate, low yield and poor product quality of resveratrol in the prior art. The process comprises the following steps: pretreating giant knotweed used as raw material, washing away dust of the giant knotweed, cutting the giant knotweed into slices or preparing the giant knotweed into coarse powder, adding ethanol and heating to carry out reflux extraction, decompressing and distilling extract liquid to recover the ethanol, concentrating the ethanol into stiff paste, diluting the stiff paste by water for 10 times, adding enzymolysis liquid to carry out enzymolysis, heating and filtering the enzymatic enzymolysis liquid, decoloring the enzymolysis liquid by activated carbon, repeatedly recrystallizing the enzymolysis liquid by alcohol, and finally decompressing and drying the enzymolysis liquid to obtain a white resveratrol solid with purity of more than 98 percent. The extraction method of resveratrol greatly improves the production efficiency and the conversion rate, promotes active substances in the raw material to be converted into trans-resveratrol more, and further improves the quality of products with high purity, thereby being suitable for industrial production.

Description

technical field [0001] The invention relates to a method for extracting effective components of traditional Chinese medicine, in particular to a method for extracting resveratrol from traditional Chinese medicine Polygonum cuspidatum. Background technique [0002] Resveratrol, English name Resveratrol, molecular formula C 14 h 12 o 3 , molecular weight 228.25. In nature, resveratrol is mainly found in grapes, knotweed, peanuts, Korean pagoda tree and other plants. Resveratrol is a natural antioxidant that can reduce blood viscosity, inhibit platelet aggregation and vasodilation, keep blood flowing, prevent the occurrence and development of cancer, and have anti-atherosclerosis, coronary heart disease, ischemia Sexual heart disease, prevention and treatment of hyperlipidemia. It also has the effects of inhibiting tumors, anti-inflammation, and anti-allergy, and also has estrogen-like effects, which can be used to treat diseases such as breast cancer. [0003] There are ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C39/21C07C37/68
Inventor 张守力
Owner 张守力
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