Method for extracting and purifying beet red pigment from garden beet concentrated juice

A technology of beet red pigment and concentrated juice, which is applied in the field of extraction and purification of beet red pigment, can solve the problems of low color price and incomplete removal of impurities in beet red pigment, and achieve high color price, reduce degradation loss, and reduce impurity content Effect

Active Publication Date: 2014-11-05
天津市尖峰天然产物研究开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, there are many patents for the extraction and purification of beet red. Chinese patents CN 102093747B, CN 102675910A, and CN 101429347

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0024] Example 1

[0025] A method for extracting and purifying beet red pigment from beet juice concentrate includes the following steps:

[0026] (1) Red beet juice concentrate, which is red beet juice concentrate with color value 3 and brix 50°Bx, diluted with citric acid water of PH3.0 to 4°Bx brix to obtain red beet Concentrated juice diluent;

[0027] (2) Put the red beet juice concentrate diluent on a mixed resin column, the mixed resin is composed of cation exchange resin 001×7 and macroporous resin DM21 in a mass ratio of 5:95, each with 1 column volume of deionized water , The volume percentage concentration of 1 column volume is 30% ethanol aqueous solution, and the volume percentage concentration of 1.5 column volume is 70% ethanol aqueous solution for elution, and the 70% ethanol eluate is collected to obtain the beet red eluate;

[0028] (3) Concentrate the beet red eluate in a water bath single-effect concentrator with a water bath temperature of 60°C and a vacuum degr...

Example Embodiment

[0029] Example 2

[0030] A method for extracting and purifying beet red pigment from beet juice concentrate includes the following steps:

[0031] (1) Red beet juice concentrate, which is red beet juice concentrate with color value 5 and brix 65°Bx, diluted with citric acid water of PH4.0 to 5°Bx brix to obtain red beet Concentrated juice diluent;

[0032] (2) Put the red beet juice concentrate diluent on a mixed resin column, the mixed resin is composed of cation exchange resin 7320 and macroporous resin O3K7 in a mass ratio of 50:50, respectively with 1 column volume of deionized water, 1 The volume percentage of the column volume is 30% ethanol aqueous solution, and the volume percentage of 1.5 column volume is 70% ethanol aqueous solution for elution, and the 70% ethanol eluate is collected to obtain the beet red eluate;

[0033] (3) Concentrate the beet red eluate in a water bath single-effect concentrator with a water bath temperature of 70°C and a vacuum degree of ≤ -0.085MPa...

Example Embodiment

[0034] Example 3

[0035] A method for extracting and purifying beet red pigment from beet juice concentrate includes the following steps:

[0036] (1) Red beet juice concentrate, which is red beet juice concentrate with a color value of 10 and a Brix content of 75°Bx, diluted with citric acid water of PH5.0 to a Brix content of 6°Bx to obtain red beet Concentrated juice diluent;

[0037] (2) Put the red beet juice concentrate diluent on a mixed resin column, the mixed resin is composed of cation exchange resin CD-180 and macroporous resin SP207 with a mass ratio of 95:5, each with 1 column volume of deionized water , The volume percentage concentration of 1 column volume is 30% ethanol aqueous solution, and the volume percentage concentration of 1.5 column volume is 70% ethanol aqueous solution for elution, and the 70% ethanol eluate is collected to obtain the beet red eluate;

[0038] (3) Concentrate the beet red eluate in a water bath single-effect concentrator with a water bath t...

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PUM

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Abstract

The invention discloses a method for extracting and purifying a beet red pigment from garden beet concentrated juice. The method comprises the following steps: (1) diluting the garden beet concentrated juice by using citric acid water of pH3-pH5 until the brix is 4-6 degrees, so that diluent of the garden beet concentrated juice is obtained; (2) putting the diluent of the garden beet concentrated juice on a mixed resin column, and carrying out elution, separation and purification on the diluent, so that beet red eluent is obtained; and (3) concentrating the beet red eluent on a water bath single-effect concentrator until the brix is 20-30 degrees, and carrying out spray drying on the obtained product, so that beet red powder is obtained. According to the method disclosed by the invention, sugar in garden beet concentrated juice is removed, and other impurities such as inorganic salts and the like are also removed, thereby improving the production efficiency; and the water bath single-effect concentrator is adopted for carrying out low-temperature vacuum concentration, so that the degradation of raw materials is reduced, and beet red products with a relatively high color value can be obtained.

Description

Technical field [0001] The present invention is a purification method for beet red pigment, which involves a method of extracting purified beet red from the concentrated juice of red beets. Background technique [0002] Beet red (Beet Red) is a water-soluble nitrogen-containing pigment. It is named after being discovered in the beet root. It is pyridine derivatives. The basic hair color group is 1,7-two-puppet nitrogen-pyrine.The general term of all the colorful compounds includes two forms: BetACyanin and beet yellowin.Pet beet red seeds are widely existing in many plants such as the Department of Quinoa, the family of the family, the fairy palm family, and the Shanglu family.Beetin is generally existed in the flowers, fruits, and some non -non -reproductive organs of plants.The main ingredient of beet red is beetinine (Betanine), accounting for 75%to 95%of the red pigment. The rest are cherryin, anterior beetin, and alien beetin;Ⅱ. [0003] Beet red solid is purple -red powder,...

Claims

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Application Information

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IPC IPC(8): C09B61/00C09B67/54
Inventor 吴巍
Owner 天津市尖峰天然产物研究开发有限公司
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