Color-protecting agent and method for improving thermal stability of cochineal dye

A technology of cochineal and thermal stability, applied in the field of natural pigments, can solve the problems of single antioxidant effect is not obvious, easy to fade, etc., to achieve the effect of avoiding fading, improving thermal stability, and prolonging the effective period of action

Active Publication Date: 2019-08-23
上海统益生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although cochineal red pigment is very stable, it is easy to fade when it is used in the pro

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] The color-protecting agent for improving the thermal stability of cochineal pigment is made of the following raw materials: tea polyphenols, papaya flavonoids, and glucomannan, in terms of parts by mass: 0.24 parts of tea polyphenols, 0.03 parts of papaya flavonoids, and glucomannan 0.87 parts, the raw materials are dispersed in a mixed solvent to obtain a color-protecting agent. The mixed solvent comprises 34 parts of propylene glycol and 68 parts of water.

Embodiment 2

[0017] The color-protecting agent for improving the thermal stability of cochineal pigment is made of the following raw materials: tea polyphenols, papaya flavonoids, and glucomannan, in terms of parts by mass: 0.37 parts of tea polyphenols, 0.02 parts of papaya flavonoids, and glucomannan 0.93 parts, the raw materials are dispersed in a mixed solvent to obtain a color-protecting agent. The mixed solvent includes 25 parts of propylene glycol and 75 parts of water.

Embodiment 3

[0019] The color-protecting agent for improving the thermal stability of cochineal pigment is made of the following raw materials: tea polyphenols, papaya flavonoids, and glucomannan, in terms of parts by mass: 0.19 parts of tea polyphenols, 0.03 parts of papaya flavonoids, and glucomannan 1.26 parts, the raw material is dispersed in a mixed solvent to obtain a color-protecting agent. The mixed solvent includes 20-40 parts of propylene glycol and 50-80 parts of water.

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PUM

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Abstract

The invention belongs to the technical field of natural pigments, and relates to a color-protecting agent and method for improving thermal stability of cochineal dye. The color-protecting agent is prepared from the following raw materials, in parts by mass: 0.1-0.4 part of tea polyphenols, 0.02-0.05 part of papaya flavone, and 0.5-1.5 parts of glucomannan; the color-protecting agent is prepared bydispersing the raw materials into a mixed solvent; and the above color-protecting agent is added into the cochineal dye, and uniform mixing is performed to form a mixture of the cochineal dye and thecolor-protecting agent. According to the color-protecting agent and method for improving the thermal stability of the cochineal dye provided by the invention, the thermal stability of the cochineal dye can be effectively improved, and discoloration of the cochineal dye due to heat during processing and storage of the cochineal dye can be avoided; and meanwhile the tea polyphenol and papaya flavone antioxidants are slowly released under the action of the glucomannan, so that the effect effective duration of the color-protecting agent can be effectively prolonged.

Description

technical field [0001] The invention belongs to the technical field of natural pigments, and relates to a color-protecting agent for improving the thermal stability of carmine pigment and a method thereof. Background technique [0002] Carmine is an anthraquinone natural pigment, which is an excellent colorant for food, cosmetics, medicine and textiles. It is also the only natural pigment approved by the FDA for both food, medicine and cosmetics. Although cochineal red pigment is very stable, it is easy to fade when used in the processing of other products, and the effect of conventional single antioxidants is not obvious. Contents of the invention [0003] Aiming at the above-mentioned technical problems, the present invention provides a color-protecting agent and method for improving the thermal stability of carmine pigment, through the synergistic effect of antioxidants and other substances, the stability of carmine pigment under heat is protected, without Fading occur...

Claims

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Application Information

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IPC IPC(8): C09B67/10C09B1/02C09B61/00
CPCC09B1/02C09B61/00C09B67/0014
Inventor 滕雅蓉
Owner 上海统益生物科技有限公司
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