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Method for enriching and purifying carmine radish anthocyanin

A technology of rouge radish and radish flower, applied in chemical instruments and methods, azo dyes, organic dyes, etc., can solve the problems of low extraction purity and low extraction rate, and achieve high extraction purity, large adsorption capacity and high purity. Effect

Active Publication Date: 2016-03-30
DAXINGANLING LINGOBERRY BOREAL BIOTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the disadvantages of relatively low extraction rate and low extraction purity of conventional techniques, and provide a method for enriching and purifying carmine radish anthocyanins by utilizing water vapor reflux extraction and membrane separation technology and macroporous adsorption resin coupling method

Method used

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Examples

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Effect test

Embodiment 1

[0018] Embodiment 1: A method for enriching and purifying carmine radish anthocyanins by using water vapor reflux extraction and membrane separation technology and macroporous adsorption resin coupling method, the steps include:

[0019] (1) crush the radishes through a 40-mesh sieve, add purified water whose volume is 10 times the crushed volume of the radishes, and carry out steam reflux extraction for 3 times, and the extraction time is 3 hours;

[0020] (2) combining the rouge radish extracts treated in (1), and microfiltration, the pore size ranges from 0.1 to 1 micron, and the pressure is controlled at 0.7MPa to obtain the filtrate;

[0021] (3) The filtrate through microfiltration is subjected to ultrafiltration again, the temperature is controlled at 20° C., and the pressure is controlled at 0.6 MPa to obtain the crude extract of carmine radish anthocyanins;

[0022] (4) Adsorb the obtained carmine radish anthocyanin crude extract with a macroporous adsorption resin, t...

Embodiment 2

[0027] Embodiment 2: A method for enriching and purifying carmine radish anthocyanins by using water vapor reflux extraction and membrane separation technology and macroporous adsorption resin coupling method, the steps include:

[0028] (1) Pulverize the rouge radish, pass through a 60-mesh sieve, add purified water whose volume is 20 times the crushed volume of the rouge radish, and carry out water vapor reflux extraction for 3 times, and the extraction time is 2 hours;

[0029] (2) combining the rouge radish extracts treated in (1), and microfiltration, the pore size ranges from 0.1 to 1 micron, and the pressure is controlled at 0.5 MPa to obtain the filtrate;

[0030] (3) The filtrate through microfiltration is subjected to ultrafiltration again, the temperature is controlled at 40° C., and the pressure is controlled at 0.4 MPa to obtain the crude extract of carmine radish anthocyanins;

[0031] (4) Adsorb the obtained carmine radish anthocyanin crude extract with a macrop...

Embodiment 3

[0036] Embodiment 3: A method for enriching and purifying carmine radish anthocyanins by using water vapor reflux extraction and membrane separation technology and macroporous adsorption resin coupling method, the steps include:

[0037] (1) Pulverize the rouge radish, pass through a 80-mesh sieve, add purified water with a volume 20 times the volume of the crushed rouge radish, and carry out water vapor reflux extraction, extract 3 times, and the extraction time is 3 hours;

[0038] (2) combining the rouge radish extracts treated in (1), and microfiltration, the pore size ranges from 0.1 to 1 micron, and the pressure is controlled at 0.5 MPa to obtain the filtrate;

[0039] (3) The filtrate through microfiltration is subjected to ultrafiltration again, the temperature is controlled at 20° C., and the pressure is controlled at 0.5 MPa to obtain the crude extract of carmine radish anthocyanins;

[0040] (4) Adsorb the obtained carmine radish anthocyanin crude extract with a mac...

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Abstract

The invention aims to overcome the shortcomings of relatively low extraction rate, low extraction purity and the like in a conventional technology, and provides a method for enriching and purifying carmine radish anthocyanin with a steam reflux extraction and membrane separation technology and a macroporous adsorption resin coupling process. According to the method, the carmine radish anthocyanin is separated and purified by applying the steam reflux extraction and membrane separation technology and the macroporous adsorption resin coupling process, so that the extraction of the carmine radish anthocyanin is complete, no pollution is caused, the separation effect is good, the purity is high, the macroporous resin adsorption selectivity is high, the adsorption and analysis are quick, the adsorption capacity is relatively large, the separation effect is remarkable, and the extraction purity is high; a final product of the carmine radish anthocyanin with the content of more than 25% is obtained; and the shortcomings of relatively low extraction rate and low extraction purity in the conventional technology are overcome.

Description

technical field [0001] The invention belongs to the field of natural organic chemistry, and relates to a method for purifying rouge radish, in particular to a method for enriching and purifying rouge radish anthocyanins by using water vapor reflux extraction and membrane separation technology and macroporous adsorption resin coupling method. Background technique [0002] Rouge radish, also known as Fuling red heart radish, is a biennial vegetable crop belonging to the cruciferous radish family, and is one of the three major specialties of Fuling. It is mainly produced in Fuling, and it is mostly cultivated in neighboring counties and cities, and it is also produced in Sichuan and Guizhou. Early to mid-maturing, it can be sown in Fuling from July to October, and harvested in batches from late September to February of the following year. The yield per mu is about 1500 kg. Red radish bolts late and is not easy to bran heart; it is cold-resistant, relatively heat-resistant, re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B61/00
CPCC09B61/00
Inventor 姚德坤万莉姚德利
Owner DAXINGANLING LINGOBERRY BOREAL BIOTECH CO LTD
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