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Process for producing high color value betalain by utilizing macroporous resin

A beet red pigment and macroporous resin technology, applied in azo dyes, organic dyes, chemical instruments and methods, etc., can solve the problems of many impurities, restrictions, low product pigment content, etc., and achieve high color price and low cost. , the effect of simple process

Active Publication Date: 2013-12-18
CHENGUANG BIOTECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there are many studies on the extraction of beet red pigment from red beets, but most of the beet red pigment obtained by the existing technology has problems such as low color value and odor. The national standard QB / T3791-1999 stipulates that the beet red pigment unit It is qualified. The specifications of common beet red products on the market mainly include: etc., the reason is that the extract contains a large amount of sugar and other impurities, and the existing technology can not completely remove the sugar impurities, so that the product has low pigment content, more impurities, and peculiar smell, making it suitable for use in and limited promotion

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] The method comprises the following steps: (1), taking 100 kg of red beet raw material, washing and trimming it, cutting it into 3mm coriander strips, extracting it three times in citric acid aqueous solution with pH=3.0, the extraction temperature is 30°C, and the red beet and lemon The weight ratio of the acids is 1:3, the extraction time is 2 hours for the first pass, and 1 hour for the second and third passes. (2) Combine the three extracts, add 1 g of chitosan and let stand, and precipitate at 5° C. for 24 hours. (3) Filter the precipitated supernatant through a diatomaceous earth filter. (4), the obtained beet red filtrate is subjected to macroporous resin adsorption, first washed with water and controlled to dry, and then analyzed with 40% alcohol. The adsorption rate is 1BV / h, the washing rate is 2BV / h, and the resolution rate is 1BV / h. (5) Using a nanofiltration membrane to concentrate the beet red analytical solution at 20° C. to obtain 41 kg of liquid beet r...

Embodiment 2

[0012] The method comprises the following steps: (1) 200kg of red beet raw material is taken, washed and trimmed, cut into 4mm coriander shreds, and extracted twice in citric acid aqueous solution with pH=3.5. The extraction temperature is 40° C.; the weight ratio of red beet to citric acid is 1:4; the extraction time is 2 hours each for the first and second times. (2) Combine the secondary extracts, add 1.5 g of chitosan and let stand, and precipitate at 6° C. for 24 hours. (3) Filter the precipitated supernatant through a diatomaceous earth filter. (4) The obtained beet red filtrate is subjected to macroporous resin adsorption, first washed with water and controlled to dry, and then analyzed with 50% alcohol. The adsorption rate is 1BV / h, the washing rate is 2BV / h, and the resolution rate is 1BV / h. (5) Concentrate the beet red analytical solution at 20°C using a nanofiltration membrane to obtain 83kg of liquid beet red pigment, with a unit color price is 1.98. (6), liqu...

Embodiment 3

[0014] The method comprises the following steps: 1. Take 500kg of red beet raw material, cut it into 3mm coriander shreds after cleaning and trimming, and extract three times in citric acid aqueous solution with pH=3.5. The weight ratio of red beet to citric acid is ; the extraction temperature is 1:5; the extraction time is 3 hours for the first pass, and 1 hour for the second and third passes. (2) Combine the three extracts, add 5g of chitosan and let stand, and precipitate at 8°C for 24 hours. (3) Filter the precipitated supernatant through a diatomaceous earth filter. (4), the obtained beet red filtrate is subjected to macroporous resin adsorption, first washed with water and controlled to dry, and then analyzed with 40% alcohol. The adsorption rate is 1BV / h, the washing rate is 2BV / h, and the resolution rate is 1BV / h. (5) Use a nanofiltration membrane to concentrate the beet red analysis solution at 20°C to obtain 200kg of liquid beet red pigment, with a unit color pric...

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Abstract

The invention belongs to the field of the refinement of natural pigments of food additives, and particularly relates to a process for refining high color value betalain by utilizing a special No. 1 macroporous resin. The process comprises the following steps of: (1) cleaning fresh red beets; (2) extraction, namely cutting the red beets into vegetable slices with the width of between 2 and 5 mm and directly falling into citric acid buffer solution with the pH value of between 2 and 5 for extraction; (3) precipitation, namely merging extract liquor and then precipitating; (4) filtration, namely filtering supernatant obtained after the precipitation; (5) resin treatment, namely absorbing by using the No. 1 macroporous resin; (6) concentration, namely concentrating betalain ethanol solution obtained through the analysis by utilizing nanofiltration membrane concentration equipment; and (7), spray drying, namely performing spray drying on liquid betalain obtained through the concentration to obtain powdery betalain. The process is simple, has low cost, and is suitable for industrialized production.

Description

technical field [0001] The invention belongs to the field of refining food additive natural pigments, and in particular relates to a process for refining and treating high color-value beet red pigments by using special-purpose 1# macroporous resin. Background technique [0002] With the vigorous development of the food industry, the demand for natural pigments is also increasing day by day. Because natural pigments are safe to use, natural in color and have high nutritional value, natural pigments are more and more popular among people. Beet red pigment is mainly a water-soluble natural pigment extracted from the tubers of Chenopodiaceae red beet. It belongs to pyridine derivatives. The basic chromophore is 1,7-diazoheptanine, which is all colored compounds in red beet The general term for beetroot, which is composed of red beet anthocyanin and yellow betaxanthin. The main component of beet cyanine is betanin (Betanin), which accounts for 75% to 95% of the red pigment, and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09B61/00
Inventor 暴海军袁红波任庆海薛强张建霞
Owner CHENGUANG BIOTECH GRP CO LTD
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