Acid-resistant edible pigment containing cochineal and preparation method of acid-resistant edible pigment

A technology of cochineal red and food coloring, applied in the direction of food ingredients as color, application, food science, etc., can solve the problems of poor acid resistance of cochineal red pigment, and achieve the effects of improving preservation rate, improving coloring strength and high stability

Pending Publication Date: 2021-09-21
广州市威伦食品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem solved by the present invention is the problem of poor acid resistance of carmine pigment, and acid-resistant food coloring containing carmine is provided

Method used

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  • Acid-resistant edible pigment containing cochineal and preparation method of acid-resistant edible pigment
  • Acid-resistant edible pigment containing cochineal and preparation method of acid-resistant edible pigment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Acid-resistant food coloring containing carmine, including: 500g carmine powder, 300g chitosan, 50g disodium edetate, 50g sodium benzoate, 200g α-cyclodextrin, 4000g glycerin, 4900g of ionized water.

[0029] Preparation methods include:

[0030] Add disodium edetate, sodium benzoate, and α-cyclodextrin to deionized water and mix well;

[0031] Add cochineal red pigment and glycerol, emulsify and disperse for 20~30min;

[0032] Filtrate to obtain the acid-resistant food coloring containing cochineal.

[0033] The equipment used for emulsification and dispersion is a high-shear homogeneous emulsification pump with a power of 7.5KW, a processing capacity of 0-8T / H, a rotational speed of 2500r / min, and a rotor diameter of 150mm. The emulsification pump uses a three-stage stator and rotor. Described filtering is to adopt 300 mesh sieves. The working mode of the emulsification pump is a down-suction cycle.

[0034] Compound carmine with α-cyclodextrin, chitosan, glycer...

experiment example

[0078] Take the acid-resistant food coloring containing cochineal in Example 1 and Comparative Examples 1-6, adjust the pH value to 3.0 in a citric acid buffer solution, store it in a volumetric flask at room temperature for 1 hour, measure its content, and make a blank at the same time.

[0079] Determination of cochineal content: use spectrophotometer to measure the absorbance of cochineal at the maximum absorption wavelength (about 494 nm), and calculate its content.

[0080] Reagents and materials: hydrochloric acid solution: 2 mol / L, the pigment of each embodiment after being acidified with citric acid.

[0081] Instruments and equipment: Analytical balance: accuracy 0.1 mg; UV-Vis spectrophotometer.

[0082] Determination steps of cochineal: Accurately weigh 1 g (accurate to 0.0001 g) sample of cochineal (solution to be tested), dissolve in 30ml of 2 mol / L hydrochloric acid solution, boil, cool to 20 ℃, transfer to 1000 mL In a volumetric flask, make up to the mark with...

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Abstract

The invention relates to the field of food colorants, provides an acid-resistant edible pigment containing cochineal and a preparation method of the acid-resistant edible pigment, and aims to solve the problem of poor acid resistance of the cochineal. The acid-resistant edible pigment containing cochineal provided by the invention is prepared from the following components in percentage by weight: 3 to 8%of cochineal pigment powder, 0.1 to 5%of chitosan, 0.1 to 1%of disodium ethylene diamine tetraacetate, 0.1 to 1%of sodium benzoate, 0.1 to 3%of alpha-cyclodextrine, 30 to 50%of glycerol and 40 to 60%of deionized water. The preservation rate of the pigment in an acid environment is improved, the thermal stability of the pigment is improved, and the tinting strength of the pigment is improved.

Description

technical field [0001] The invention relates to the field of food pigments, in particular to acid-resistant food pigments containing carmine. Background technique [0002] Carmine is a natural food coloring, which is extracted from female cochineals growing on different types of cactus in different regions. Application prospects. However, due to the poor acid resistance of cochineal red pigment, when used in acidic food (pH<4.0), precipitation and discoloration will occur, so it is subject to certain restrictions in the use of food technology. Contents of the invention [0003] The technical problem solved by the invention is the problem of poor acid resistance of carmine pigment, and acid-resistant food coloring containing carmine is provided. [0004] In order to solve the problems of the technologies described above, the technical solution provided by the invention is: [0005] Acid-resistant food coloring containing carmine, including: carmine powder 3~8%, chitos...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L5/43
CPCA23L5/43A23V2002/00A23V2200/04A23V2250/511A23V2250/5112
Inventor 赵博谦
Owner 广州市威伦食品有限公司
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