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Production method for gardenia yellow pigment

A technology of gardenia yellow pigment and production method, which is applied in the production field of gardenia yellow pigment, can solve the problems of limited application range, easy precipitation of gardenia yellow pigment, etc., achieves wide application range, improves clarity, and improves purity. Effect

Active Publication Date: 2012-01-18
HENAN ZHONGDA HENGYUAN BIOTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method uses membrane separation and purification technology to remove tiny particulate impurities and improve the quality of gardenia yellow pigment, the gardenia yellow pigment produced by this method is prone to precipitation in an acidic environment, thus limiting its application range

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Grind the dried gardenia fruit to 10 mesh, put 500kg gardenia fruit powder into the extraction tank, add 50% ethanol aqueous solution at 30°C for 120 minutes according to the solid-to-liquid mass ratio of 1:10 Finally, filter with a 400-mesh sand core filter rod, collect the filter residue and filtrate, then repeat the above operation three times with the filter residue, collect and merge the filtrate after each filtration, and obtain the first pigment solution;

[0057] The obtained first pigment solution was vacuum-concentrated at 60°C under a vacuum degree of -0.08MPa, then diluted with 5 times its volume of deionized water, and then adsorbed by D101 macroporous adsorption resin. After the adsorption was saturated, First wash the resin with deionized water 10 times the volume of the resin, then use 20% ethanol aqueous solution to elute impurities such as gardenoside adsorbed in the resin, and finally use 90% ethanol aqueous solution to elute gardenia yellow For the p...

Embodiment 2

[0063] Grind the dried gardenia fruit to 10 meshes, put 500kg of gardenia fruit powder into the extraction tank, add 60% ethanol aqueous solution at 30°C for 120 minutes according to the solid-to-liquid mass ratio of 1:8 Finally, filter with a 400-mesh nylon filter, collect the filter residue and filtrate, then repeat the above operation three times with the filter residue, collect and merge the filtrate after each filtration, to obtain the first pigment solution;

[0064] The obtained first pigment solution was vacuum-concentrated at 80°C under a vacuum degree of -0.1MPa, then diluted with 6 times its volume of deionized water, and then adsorbed by D101 macroporous adsorption resin. After the adsorption was saturated, First wash the resin with 12 times the volume of the resin in deionized water, then use 25% ethanol aqueous solution to elute impurities such as gardenoside adsorbed in the resin, and finally use 85% ethanol aqueous solution to elute gardenia yellow For the pigm...

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PUM

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Abstract

The invention provides a production method for gardenia yellow pigment. The production method comprises the following steps of: (a) lixiviating gardenia fruit powder to obtain first pigment solution; (b) purifying the first pigment solution with macroporous adsorption resin to obtain second pigment solution; and (c) refining the second pigment solution with ion exchange resin to obtain gardenia yellow pigment, wherein the ion exchange resin contains a sulfonic group, acylamino group or amino group. The gardenia yellow pigment obtained by the production method provided by the invention has the advantages of less impurities, high color number and low gardenoside content; an aqueous solution of the gardenia yellow pigment has high clarity and low probability of producing precipitate under acidic environment; and the gardenia yellow pigment has broader application range.

Description

technical field [0001] The invention relates to the technical field of pigments, in particular to a production method of gardenia yellow pigment. Background technique [0002] Gardenia yellow pigment, also known as crocetin, is a natural pigment extracted from the fruit of gardenia, a medicinal and edible plant of the Rubiaceae family. Its main components are crocetin and crocetin. Gardenia yellow pigment is a water-soluble carotenoid, which has many advantages such as good health care, safety and non-toxicity, bright color, strong tinting power, high stability, and color tone is almost not affected by pH value, so it is widely used in medicine and medicine. In food and other fields, as stipulated in the Chinese national standard GB 2760-2011 "National Food Safety Standard Food Additive Use Standard", gardenia yellow pigment can be used in food such as flour products, candies, cakes and beverages. At present, gardenia yellow pigment has a wide market demand in Japan, South ...

Claims

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Application Information

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IPC IPC(8): C09B61/00
Inventor 李宏龙文雁君李林正章文晋潘天义李轩
Owner HENAN ZHONGDA HENGYUAN BIOTECH CO LTD
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