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A process for extracting high-purity oxidized resveratrol from mulberry

A technology for oxidizing resveratrol and mulberry, which is applied in the preparation of organic compounds, organic chemistry, chemical instruments and methods, etc., can solve the problems of low product yield and quality, long production cycle, outdated technology, etc. Low, easy to operate, good decolorization effect

Active Publication Date: 2016-08-24
INFINITUS (CHINA) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] As can be seen from the above, there are many existing techniques for extracting oxidized resveratrol, but in general, the existing techniques are relatively outdated, with long production cycles, high costs, and low product yield and quality.

Method used

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  • A process for extracting high-purity oxidized resveratrol from mulberry
  • A process for extracting high-purity oxidized resveratrol from mulberry
  • A process for extracting high-purity oxidized resveratrol from mulberry

Examples

Experimental program
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Effect test

Embodiment 1

[0031] A process for extracting high-purity oxidized resveratrol from mulberry trees, comprising the following steps:

[0032] (1) First crush the dried mulberry rhizomes and pass through a 10-mesh sieve;

[0033] (2) Add 60% pure ethanol solvent according to the mass volume ratio of mulberry rhizome and ethanol solution 1:8, stir and extract the crushed mulberry rhizome at 80°C, the extraction time is 2.5h, and filter to obtain the filtrate; repeat stirring Extract 4 times, combine filtrate;

[0034] (3) Concentrate the ethanol filtrate to one-tenth of the original volume, measure the solid content, control the solid content at 10%-15%, add ethyl acetate 5 times the volume of the concentrated solution to extract the oxidized resveratrol, and fully stir After that, stand still until the layers are separated, and the ethyl acetate layer is separated; the ethyl acetate extraction is repeated 3 times, and the ethyl acetate solution is combined;

[0035] (4) Ethyl acetate is eas...

Embodiment 2

[0042] A process for extracting high-purity oxidized resveratrol from mulberry trees, comprising the following steps:

[0043] (1) First crush the dried mulberry rhizomes and pass through a 10-mesh sieve;

[0044] (2) Add 70% pure ethanol solvent according to the mass volume ratio of mulberry rhizome and ethanol solution 1:7, stir and extract the crushed mulberry rhizome at 70°C, the extraction time is 2h, and filter to obtain the filtrate; repeat the stirring and extraction 3 times, combined filtrate;

[0045] (3) Concentrate the ethanol filtrate to one-tenth of the original volume, measure the solid content, control the solid content at 10%-15%, add 4 times ethyl acetate to extract the oxidized resveratrol, stir well, and stand still until Separate the layers and separate the ethyl acetate layer; repeat the ethyl acetate extraction 3 times, and combine the ethyl acetate solution;

[0046] (4) Ethyl acetate is easily concentrated to a paste, and 80% pure ethanol is added ac...

Embodiment 3

[0052] A process for extracting high-purity oxidized resveratrol from mulberry trees, comprising the following steps:

[0053] (1) First crush the dried mulberry rhizomes and pass through a 10-mesh sieve;

[0054] (2) Add 80% pure ethanol solvent according to the mass volume ratio of mulberry rhizome and ethanol solution 1:7, stir and extract the crushed mulberry rhizome at 60°C, the extraction time is 1.5h, and filter to obtain the filtrate; repeat stirring Extract 3 times, combine filtrate;

[0055] (3) Concentrate the ethanol filtrate to one-tenth of the original volume, measure the solid content, control the solid content at 10%-15%, add 3 times ethyl acetate to extract the oxidized resveratrol, stir well, and stand still until Separate the layers and separate the ethyl acetate layer; repeat the ethyl acetate extraction twice, and combine the ethyl acetate solution;

[0056] (4) Ethyl acetate is easily concentrated into a paste, and 85% pure ethanol is added according to...

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Abstract

The invention provides a technology for extracting high-purity oxyresveratrol from morus alba L.. The technology is implemented as follows: dried and smashed morus alba L. is repeatedly extracted for 2-3 times with an ethanol solvent, filtrate is mixed and concentrated until the solid content is 10%-15%, ethyl acetate is added to be extracted for 2-3 times, and ethyl acetate solutions are mixed; the ethyl acetate solutions are concentrated to paste, ethanol is added to sufficiently dissolve the paste substance, a decolorizing agent whose mass is 20-30 times that of the paste substance is added, ethanol is added again, the mixture is sufficiently stirred and filtered, the filtrate is obtained and concentrated to the alcohol-free state, the mixture is left to stand for 20-30 hours in the low-temperature environment and filtered, and filter residues are obtained; petroleum ether is added, the mixture is sufficiently stirred and left to stand for 20-30 hours at the low temperature, the mixture is filtered, filter residues are obtained, and an oxyresveratrol extract is obtained. The purity of oxyresveratrol after separation and purification is up to 90% or higher, the recovery rate is up to 85% or higher, and the technology is simple, easy and simple to operate, low in cost and capable of realizing large-scale production.

Description

technical field [0001] The invention relates to the field of extraction of effective plant components, in particular, it provides a process for extracting oxidized resveratrol from mulberry trees. technical background [0002] Mulberry (Morus alba L.) is a Urticaceae Moraceae plant, native to central China, and now widely cultivated in the north and south, especially in the middle and lower reaches of the Yangtze River. The leaves, fruits and root bark can be used as medicine. Recent studies have confirmed that oxidized resveratrol has a variety of beneficial biological activities, such as inhibiting tyrosinase activity and melanin production, antibacterial activity of fruits and vegetables, anti-herpes simplex virus activity, anti-varicella zoster virus activity and anti-HIV activity It also has anti-inflammatory, anti-inflammatory, anti-oxidation, anti-apoptotic and neuroprotective effects. Oxidized resveratrol can be used to prepare drugs, food or health products that in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C37/70C07C37/72C07C37/82C07C39/21
CPCC07C37/685C07C37/72C07C37/82C07C39/21
Inventor 唐健曹庸华洋林
Owner INFINITUS (CHINA) CO LTD
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