Method for preparing cochineal aluminum-free lake pigment by using protein, product and application of cochineal aluminum-free lake pigment

A cochineal red and protein technology, applied in the directions of lakes, chemical instruments and methods, azo dyes, etc., can solve problems such as affecting the skeletal and neurodevelopment of newborns, increasing the probability of breast cancer, and questioning safety, avoiding the The effect of safety, good color rendering and simple operation

Active Publication Date: 2020-07-28
JIANGNAN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, studies have shown that excessive intake of aluminum may lead to senile dementia, increase the incidence of breast cancer, and may affect the development of newborn bones and nerves, making the safety of cochineal red aluminum lakes questioned

Method used

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  • Method for preparing cochineal aluminum-free lake pigment by using protein, product and application of cochineal aluminum-free lake pigment
  • Method for preparing cochineal aluminum-free lake pigment by using protein, product and application of cochineal aluminum-free lake pigment
  • Method for preparing cochineal aluminum-free lake pigment by using protein, product and application of cochineal aluminum-free lake pigment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] This embodiment provides a method for preparing cochineal aluminum-free lake-like pigments by using protein:

[0031] (1) Configure 0.2mol / L disodium hydrogen phosphate solution and 0.1mol / L citric acid solution, mix, and control its pH to be 3;

[0032] (2) adding carminic acid to the buffer solution in (1) to prepare a carminic acid buffer solution, wherein the mass percentage of carminic acid in the carminic acid buffer solution is 0.02%;

[0033] (3) Add soybean protein isolate to the carminic acid buffer solution prepared in (2), fully stir, and mix uniformly to obtain soybean protein isolate-carminic acid mixed solution, wherein, carminic acid and soybean protein isolate The mass ratio is 1:10;

[0034] (4) Add tannic acid to the soybean protein isolate-carminic acid mixture prepared in (3), control the concentration of tannic acid to 0.1%, after mixing evenly, centrifuge the resulting solution at 2000rpm for 10min, and take the precipitate Freeze-drying and gri...

Embodiment 2

[0036] This embodiment provides a method for preparing cochineal aluminum-free lake-like pigments by using protein:

[0037] (1) Configure 0.2mol / L disodium hydrogen phosphate solution and 0.1mol / L citric acid solution, mix, and control its pH to be 3;

[0038] (2) adding carminic acid to the buffer solution in (1) to prepare a carminic acid buffer solution, wherein the mass percentage of carminic acid in the carminic acid buffer solution is 0.02%;

[0039] (3) Add casein to the carminic acid buffer prepared in (2), fully stir, and mix uniformly to obtain a casein-carminic acid mixed solution, wherein the mass ratio of carminic acid to casein is 1:10;

[0040] (4) Add tannic acid to the casein-carminic acid mixture prepared in (3), control the concentration of tannic acid to be 0.1%, after mixing evenly, centrifuge the resulting solution at 2000rpm for 10min, take the precipitate and freeze dry and grind to obtain cochineal aluminum-free lake pigments; the determination rate...

Embodiment 3

[0042] This embodiment provides a method for preparing cochineal aluminum-free lake-like pigments by using protein:

[0043] (1) Configure 0.2mol / L disodium hydrogen phosphate solution and 0.1mol / L citric acid solution, mix, and control its pH to be 3;

[0044] (2) adding carminic acid to the buffer solution in (1) to prepare a carminic acid buffer solution, wherein the mass percentage of carminic acid in the carminic acid buffer solution is 0.02%;

[0045] (3) Add sodium caseinate to the carminic acid buffer solution prepared in (2), fully stir, and mix uniformly to obtain a sodium caseinate-carminic acid mixed solution, wherein carminic acid and casein The mass ratio of sodium acid is 1:10;

[0046] (4) Add tannic acid to the sodium caseinate-carminic acid mixed solution obtained in (3), control the concentration of tannic acid to be 0.1%, after mixing uniformly, the gained solution is centrifuged at 2000rpm for 10min, and take The precipitate was freeze-dried and ground t...

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Abstract

The invention discloses a method for preparing a cochineal aluminum-free lake pigment by using protein, a product and application of the cochineal aluminum-free lake pigment. The method comprises thefollowing steps: adding axinic acid into a buffer solution with a pH value of 3 to prepare a pigment solution, adding metal ions, and carrying out full stirring to obtain an axinic acid pigment solution; adding protein into the axinic acid solution, carrying out full and uniform mixing, adding polyphenol, carrying out uniform stirring, conducting centrifuging, taking a precipitate, freeze-drying the precipitate, and carrying out grinding to obtain the cochineal aluminum-free lake pigment. The method for preparing the cochineal aluminum-free lake pigment by using the protein is simple and convenient to operate; and the product does not contain aluminum, so the safety of the product is prevented from being doubted. According to the cochineal aluminum-free protein lake provided by the invention, the lake has a relatively good color generation effect in an alkaline dilute iron solution and an alkaline calcium solution, and shows a relatively good dyeing effect on dough, minced fillet and single cream.

Description

technical field [0001] The invention belongs to the field of development and utilization of natural pigments, and in particular relates to a method and product for preparing cochineal aluminum-free lake-like pigments by using proteins and an application thereof. Background technique [0002] Carminic acid is a natural pigment extracted from cochineal. It has strong light stability and thermal stability, and has been widely used in the fields of food, medicine and cosmetics. However, the color of carminic acid is easily changed by the influence of the environment, which affects its application in different systems. For example, carminic acid can range in color from orange-yellow to red to purple as the pH changes from acidic to alkaline; turns dark purple when it encounters iron ions; added to starch or surimi When it is added to the preparation, its color turns purple; when added to cream products, its color turns gray-green. [0003] The cochineal red aluminum lake formed...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B63/00C09B61/00C09B1/02A23L5/43
CPCA23L5/43C09B1/02C09B61/00C09B63/00
Inventor 陈洁刘倩刘熠何志勇曾茂茂王召君秦昉
Owner JIANGNAN UNIV
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