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A kind of protective agent of high stability gardenia yellow pigment and the preparation process and coloring process of high stability gardenia yellow pigment

A gardenia yellow pigment with high stability technology, which is applied in food science and other fields, can solve the problems of shortening dyeing time and instability of gardenia yellow, achieve food safety, improve light fastness, high temperature resistance and light fastness.

Active Publication Date: 2022-03-11
郑州中科新兴产业技术研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the unstable problem of existing gardenia yellow, the present invention proposes a protective agent of high-stable gardenia yellow pigment and a preparation process and coloring process of high-stable gardenia yellow pigment. The protective agent is composed of various food Composed of additives, bamboo leaf antioxidants and licorice extracts are used as the main components to improve the stability of gardenia yellow, and the effect is remarkable; the invention uses microwave coloring technology, which shortens the dyeing time and achieves better coloring Effect

Method used

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  • A kind of protective agent of high stability gardenia yellow pigment and the preparation process and coloring process of high stability gardenia yellow pigment
  • A kind of protective agent of high stability gardenia yellow pigment and the preparation process and coloring process of high stability gardenia yellow pigment
  • A kind of protective agent of high stability gardenia yellow pigment and the preparation process and coloring process of high stability gardenia yellow pigment

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Embodiment 1

[0031] The protective agent preparation method of the present embodiment is as follows:

[0032] The bamboo leaf antioxidant required in the formula is made by crushing the bamboo leaves with a ball mill, passing through a 800-mesh sieve, and mixing the crushed bamboo leaf powder and 70% ethanol at a ratio of 1:15 (w:v) ;Using microwave technology, constant temperature 50°C, treatment for 15min, cooling to room temperature, centrifugation to take the supernatant; Rotary evaporation of the supernatant, at a temperature of 50°C and a vacuum of 0.08MPa, rotary evaporation for 15min; after rotary evaporation The concentrated solution was separated by a polyamide column, and the filtrate was eluted with 70% ethanol; the eluate was freeze-dried at a temperature of -60°C and a vacuum of 0.092MPa to finally obtain bamboo leaf antioxidant powder.

[0033] Protective agent preparation raw materials: ethylenediaminetetraacetic acid disodium (EDTA-2Na): 0.075g, licorice extract: 0.2g, bam...

Embodiment 2

[0040] The protective agent preparation method of the present embodiment is as follows:

[0041] The bamboo leaf antioxidant required by the formula is obtained by pulverizing the bamboo leaves with a ball mill, passing through a 800-mesh sieve, and mixing the pulverized bamboo leaf powder with 80% ethanol at a ratio of 1:20 (W:V) , using microwave technology, constant temperature 60°C, treatment for 15min, cooling to room temperature, centrifugation to take the supernatant; rotary evaporation of the supernatant, at a temperature of 60°C and a vacuum of 0.095MPa, rotary evaporation for 10min; the rotary evaporated The concentrated solution was separated by a polyamide column, and the filtrate was eluted with 80% ethanol; the eluate was freeze-dried at a temperature of -70°C and a vacuum of 0.100 MPa to finally obtain bamboo leaf antioxidant powder.

[0042] Protective agent preparation raw materials: disodium ethylenediaminetetraacetic acid (EDTA-2Na): 0.03g, licorice extract:...

Embodiment 3

[0049] The protective agent preparation method of the present embodiment is as follows:

[0050] The bamboo leaf antioxidant required by the formula is obtained by pulverizing the bamboo leaves with a ball mill, passing through a 800-mesh sieve, and mixing the pulverized bamboo leaf powder and 75% ethanol at a ratio of 1:16 (W:V) , by adopting microwave technology, constant temperature 55℃, treatment for 12min, cooling to room temperature, centrifugation to take the supernatant; the supernatant was subjected to rotary evaporation, at a temperature of 55℃ and a vacuum of 0.09MPa, rotary evaporation for 13min, after rotary evaporation The concentrated solution was separated by a polyamide column, and the filtrate was eluted with 75% ethanol; the eluate was freeze-dried at a temperature of -65°C and a vacuum of 0.095 MPa to finally obtain bamboo leaf antioxidant powder.

[0051] Protective agent preparation raw materials: ethylenediaminetetraacetic acid disodium (EDTA-2Na): 0.06g...

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Abstract

The invention discloses a protective agent for high-stable gardenia yellow pigment and a preparation process and a coloring process of high-stable gardenia yellow pigment. The protective agent is prepared by mixing the following components in parts by weight: ethylene glycol Disodium amine tetraacetate 0.3‑0.75, licorice extract 1‑2, bamboo leaf antioxidant 2‑5, potassium source 2.4‑4.8, sodium citrate 0.1‑0.45, citric acid 2‑2.4. In the present invention, the pigment prepared by embedding gardenia yellow pigment and protective agent with wall materials such as dextrin, sodium alginate or gelatin has significantly improved antioxidant capacity, light resistance and heat resistance, and the prepared gardenia The yellow pigment is applied to the coloring of instant noodles by microwave treatment, which can make the instant noodles achieve better coloring effect. The method of microwave coloring can quickly and evenly disperse the gardenia yellow pigment on the food surface to achieve the ideal coloring effect.

Description

technical field [0001] The invention relates to the field of pigment protective agent and dyeing, in particular to a protective agent for stable gardenia yellow pigment, a preparation process and a coloring process of highly stable gardenia yellow pigment. Background technique [0002] Natural pigment is a kind of pigment extracted from natural plants, animals and microorganisms. Compared with synthetic pigments, it has low side effects, edible and good coloring functions, and also has health benefits such as anti-oxidation and immunity enhancement. Therefore, it is widely used in the food industry. However, natural pigments have poor stability, are not resistant to high temperature and light, and are easily oxidized. These factors restrict their further application. [0003] Gardenia yellow pigment is derived from Rubiaceae gardenia. It is a typical natural pigment with good coloring performance. It is mainly used in food fields such as instant noodles, fruit juice, jelly,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23L5/43A23L5/47
CPCA23L5/43A23L5/47
Inventor 聂毅陈昂张赛郑双双海彬
Owner 郑州中科新兴产业技术研究院
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