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Production method of red bayberry pigment

A production method and pigment technology, applied in the direction of fat oil/fat production, chemical instruments and methods, fat production, etc., can solve the problems that the purity cannot meet the high quality standard requirements, high content of impurities in bayberry red pigment, cumbersome production steps, etc.

Active Publication Date: 2017-07-07
ANQING YONGQIANG AGRI SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In the above-mentioned documents and other prior art, there are problems that the content of myricetin is high in impurities, the purity cannot meet the requirements of high-quality standards, or the production steps are cumbersome and the cost is too high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Wash the dried bayberry fruit, dry it, then crush it into a paste, get 200kg and put it into the extraction tank, add 65% ethanol in the extraction tank with 4 times the quality, add 0.5 weight % N-(2-acetylamino)iminodiacetic acid, maintain a pH value of about 4, extract at 30° C. for 120 minutes, repeat 3 times, and combine the filtrates. Concentrate at 75°C under a vacuum of -0.08MPa to obtain a concentrated extract of myrica rubra.

[0048] Continuously extract the myrica rubra pigment extraction concentrate with cyclohexane solvent at 25°C and 35 rpm to separate the oil-soluble substances; after deoiling, the feed solution is diluted with 4 times deionized water, and the Adsorb in a nonpolar macroporous adsorption resin column, wash the resin bed with deionized water 3 times the volume of the resin after the adsorption is finished, and finally use 85% ethanol aqueous solution to remove the myricetin until the resin bed is free of pigment. Under the vacuum degree o...

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PUM

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Abstract

The invention discloses a production method of a waxberry red pigment. The method comprises the following steps: pulverizing waxberries; extracting with a solvent; carrying out vacuum concentration on the extracting solution; deoiling; carrying out enrichment and purification with a macroporous resin; carrying out refinement by using an ion-exchange chromatographic column; and finally, concentrating the collected waxberry red pigment by using a nanofiltration or reverse osmosis membrane. The waxberry red pigment product obtained by the method has higher purity, and thus, has higher use value.

Description

technical field [0001] The invention relates to a production method of myricetin, more particularly to an effective production method of high-purity myricetin. Background technique [0002] Natural pigments refer to pigments obtained from natural resources, mainly pigments extracted from animals, plants or microorganisms. Natural pigments have the advantages of high safety, natural color, etc., and also have certain nutritional effects and pharmacological effects. They have gradually replaced synthetic pigments and become an important part of food additives. [0003] Waxberry (Myrica rubra Sieb et Zucc.) is an evergreen arbor plant of Dicotyledonae Myricaceae. It is a specialty fruit tree in southern my country. It is mainly distributed in Jiangsu, Zhejiang, Fujian, Guangdong and other provinces south of the Yangtze River. According to statistics, the artificial cultivation area of ​​red bayberry in China is about 140,000 hm 2 More than 300,000 tons of annual output. Amon...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09B61/00C09B67/54C09B67/10C11B1/04C11B1/10
CPCC09B61/00C09B67/0014C09B67/0096C11B1/04C11B1/10
Inventor 李旭颖
Owner ANQING YONGQIANG AGRI SCI & TECH