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Method for extracting yellow coloring matter from crown daisy

A technology of yellow pigment and Chrysanthemum chrysanthemum, applied in chemical instruments and methods, azo dyes, organic dyes, etc., can solve the problems that the pigment structure is easily damaged by high temperature, the purity is not high, and the powder has many impurities

Inactive Publication Date: 2008-07-09
上海多普富生物技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] After searching the existing technical documents, it is found that Chinese Patent Publication (Notice) No.: CN101054474, patent name "Chrysanthemum chrysanthemum natural food coloring and its preparation method and application", this method uses boiling water to extract the pigment in the dried flower of chrysanthemum chrysanthemum, and the pigment structure is easily destroyed. Destroyed at high temperature, the powder obtained by simple filtration and drying has more impurities and is not high in purity

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Take Chrysanthemum chrysanthemum to dry, weigh 10g, add 400ml of water, extract at 50°C for 8 hours, repeat 3 times, filter, combine the filtrates, add 1000ml of 90% ethanol to the filtrate, let it stand for 24 hours, centrifuge, and take the supernatant The solution was concentrated under reduced pressure at 45° C. to recover the solvent to obtain 2.0 g of extractum, which was dissolved in 100 ml of distilled water, adsorbed with 300 g of HZ818 macroporous resin for 24 hours, eluted with 1000 ml of distilled water and then eluted with 1000 ml of 95% ethanol, and the ethanol eluate Concentrate to dryness under reduced pressure to obtain 0.61 g of chrysanthemum chrysanthemum pigment.

Embodiment 2

[0026] Take chrysanthemum chrysanthemum to dry, weigh 10g, add 300ml of water, extract at 45°C for 6 hours, repeat 3 times, filter, combine the filtrate, add 850ml of 90% ethanol to the filtrate, let it stand for 24 hours, centrifuge, and take the supernatant The solution was concentrated under reduced pressure at 45°C to recover the solvent to obtain 1.8 g of extract. Dissolve the extract with 100ml of distilled water, adsorb with 300g of HZ820 macroporous resin for 24 hours, elute with 800ml of 90% ethanol after eluting with 800ml of distilled water, and concentrate the ethanol eluate to dryness under reduced pressure to obtain 0.58g of chrysanthemum chrysanthemum pigment.

Embodiment 3

[0028] Take chrysanthemum chrysanthemum to dry, weigh 10g, add 200ml of water, extract at 30°C for 5 hours, repeat twice, filter, combine the filtrate, add 400ml of 80% ethanol to the filtrate, let it stand for 24 hours, centrifuge, and take the supernatant The solution was concentrated under reduced pressure at 45°C to recover the solvent to obtain 1.7 g of extract. Dissolve the extract with 100ml of distilled water, absorb with 300g of HZ841 macroporous resin for 24 hours, elute with 700ml of 85% ethanol after eluting with 700ml of distilled water, and concentrate the ethanol eluate to dryness under reduced pressure to obtain 0.53g of Chrysanthemum chrysanthemum pigment.

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Abstract

The invention discloses a process for extracting yellow coloring matter from chrysanthemum coronarium which belongs to the technical field of the extraction of natural coloring matter, the process comprises first, airing fresh chrysanthemum coronarium, adding distilled water as the weight of the chrysanthemum coronarium, extracting, filtering, and getting crude extract, second, adding the same amount of alcohol in the crude extract, standing after evenly mixing, centrifuging and getting supernatant fluid, third, decompressing and condensing the supernatant fluid to take extract shape, fourth, adding distilled water in the extract to dissolve, absorbing with macroporous adsorption resin, eluting with alcohol after eluting with a great amount of distilled water, gathering alcohol eluent, decompressing, condensing, and drying, finally getting yellow coloring matter of chrysanthemum coronarium. The invention utilizes plant chrysanthemum coronarium which is natural and innocuous to extract yellow colouring matter, which provides a technical basis for reducing the employment of synthetic pigment and developing natural coloring matters.

Description

technical field [0001] The invention relates to a method for extracting edible pigment in the technical field of food, in particular to a method for extracting yellow pigment from Chrysanthemum chrysanthemum. Background technique [0002] Food coloring is usually divided into two categories: synthetic coloring and natural coloring. Chemically synthesized pigments have been popularized and applied rapidly due to their bright color, stable properties, strong tinting strength, high fastness, convenient use, and low cost. However, most of the chemically synthesized pigments belong to coal tar or aniline pigments, which not only have no nutritional value, but also most of them are harmful to the human body. In recent years, it has been found that the toxic effects of chemically synthesized pigments are not only general toxicity and diarrhea, but also carcinogenic in some varieties. At present, the use of many varieties of synthetic pigments has been banned one after another, an...

Claims

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Application Information

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IPC IPC(8): C09B61/00A23L1/27A23L5/40
Inventor 代光辉胥荻
Owner 上海多普富生物技术有限公司
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