Method used for preparing beet red color with high color value from dragon fruit

A technology for beet red pigment and dragon fruit, applied in the field of natural pigments, can solve problems such as inability to effectively remove small molecular impurities, inability to achieve fine separation of pigments, etc., and achieve the effects of avoiding red pigment loss, low production cost, and high color price

Inactive Publication Date: 2014-07-30
昆明涞章医药科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the refining process, small molecular impurities cannot be effectively removed by ultrafiltration technology; while the use of macroporous adsorption resin technology can remove most impurities and enrich the effective parts of pigments, but it cannot achieve fine separation of pigments

Method used

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  • Method used for preparing beet red color with high color value from dragon fruit
  • Method used for preparing beet red color with high color value from dragon fruit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A, get the pulp of 50kg dragon fruit, add 50kg smoothie, beating, filter, get filtrate and filter residue respectively, the juice that filter residue obtains through squeezing machine merges with filtrate, obtains fruit juice;

[0025] b. According to the amount of adding 0.8 parts by weight of activated carbon per 100 parts by volume of fruit juice, add activated carbon to the fruit juice, stir for 10 minutes, centrifuge at a speed of 4000r / min through a centrifuge, filter, and then filter the filtrate through a tubular centrifuge at a speed of 16000r / min Centrifuge and filter to obtain the pigment solution;

[0026] c. Put the pigment solution on the chromatographic column of model MCI GEL CHP20P, then elute with pure water, collect the eluate, and freeze-dry to obtain beet red pigment. After testing, its unit color value 130 at 535nm. When eluting with water, 1-2 column volumes can be eluted with water first, and then the eluate can be collected for 2-3 column volu...

Embodiment 2

[0028] A, get the pericarp of 30kg dragon fruit, add 3kg smoothie, beating, filter, obtain filtrate and filter residue respectively, the juice that filter residue obtains through squeezing machine merges with filtrate, obtains fruit juice;

[0029] b. According to the amount of adding 1.5 parts by weight of activated carbon per 100 parts by volume of fruit juice, add activated carbon to the fruit juice, stir for 30 minutes, centrifuge at a speed of 4000r / min through a centrifuge, filter, and then pass the filtrate through a tubular centrifuge at a speed of 30000r / min Centrifuge and filter to obtain the pigment solution;

[0030] c. Put the pigment solution on the chromatographic column of model MCI GEL CHP20Y, then elute it with pure water, collect the eluate, and freeze-dry to obtain beet red pigment. After testing, its unit color value is E11c%m535nm for 131. When eluting with water, 1-2 column volumes can be eluted with water first, and then the eluate can be collected for...

Embodiment 3

[0032] A, get the pulp of 30kg dragon fruit and the pericarp of 20kg dragon fruit, mix, add 100kg ice cube, beating, filter, get filtrate and filter residue respectively, the juice that filter residue obtains through squeezing machine merges with filtrate, obtains fruit juice;

[0033] b. According to the amount of 3 parts by weight of activated carbon per 100 parts by volume of fruit juice, add activated carbon to the fruit juice, stir for 5 minutes, centrifuge at a speed of 2000r / min through a centrifuge, filter, and then pass the filtrate through a tubular centrifuge at a speed of 50000r / min Centrifuge and filter to obtain the pigment solution;

[0034] c. Put the pigment solution on the chromatographic column of model MCI GEL CHP20SS, then elute it with pure water, collect the eluate, spray dry it, and obtain the beet red pigment. After testing, its unit color value is 128 at 535nm. When eluting with water, 1-2 column volumes can be eluted with water first, and then the ...

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Abstract

The invention relates to a method used for preparing beet red color with high color value from dragon fruit, and belongs to the technical field of natural pigment. The method comprises following steps: a, dragon fruit is collected, ice blend is added, and an obtained mixture is subjected to pulp making and filtration so as to obtain juice; b, active carbon or diatomite is added into the obtained juice, and an obtained mixed material is stirred, centrifuged, and filtered so as to obtain a pigment solution; c, the obtained pigment solution is processed by using a MCI gel chromatographic column, is subjected to elution with water, and an eluent is collected and dried so as to obtain beet red color. Beneficial effects of the method are that: impurity content of the beet red color obtained via the method is low, color value is high, the method is simple and convenient, and production cost is low.

Description

technical field [0001] The invention belongs to the technical field of natural pigments, and in particular relates to a method for preparing high-color-value beet red pigments from dragon fruit. Background technique [0002] Betalains (Betalains) are natural red pigments of betalains, which have the characteristics of non-toxicity, safety, good coloring, etc., and have anti-oxidation and cardiovascular disease prevention effects. They have broad applications in food, medicine, cosmetics, etc. application prospects. [0003] At present, beet red pigment mainly comes from sugar beets, Suaeda salsa and pokeweed berries. Due to the high sugar content of beet, the extract contains a large amount of sugar and other impurities, resulting in low purity and strong odor of beet red pigment; the special growth environment of Suaeda salsa cannot be artificially cultivated, which limits the production of raw materials; pokeweed berry extraction Phytolagalus saponin is contained in the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B61/00C09B67/54
Inventor 周志宏刘菲菲张宝洪王兵
Owner 昆明涞章医药科技有限公司
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