A method and product for preparing cochineal aluminum-free lake-like pigments by using protein and application thereof

A technology of cochineal and protein, which is applied in the field of preparing cochineal aluminum-free lake pigments, can solve the problems of affecting the skeletal nerve development of newborns, increasing the incidence of breast cancer, and questioning safety, so as to avoid safety , good color rendering and simple operation

Active Publication Date: 2021-12-07
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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  • A method and product for preparing cochineal aluminum-free lake-like pigments by using protein and application thereof
  • A method and product for preparing cochineal aluminum-free lake-like pigments by using protein and application thereof
  • A method and product for preparing cochineal aluminum-free lake-like pigments by using protein and application thereof

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 and product for preparing cochineal aluminum-free lake-like pigments by using protein and the application thereof, comprising: adding carminic acid into a buffer solution with a pH of 3 to prepare a pigment solution, and adding metal ions, fully stirred to obtain carminic acid pigment solution; add protein to carminic acid solution, mix well, add polyphenols, stir well, take precipitate after centrifugation, freeze-dry, grind to obtain cochineal red aluminum-free Lake pigments. The method for preparing cochineal aluminum-free lake-like pigments by utilizing protein in the invention is simple and convenient to operate, and the aluminum-free product avoids doubts about its safety. The invention provides a cochineal aluminum-free protein color lake, which has a good coloring effect in alkaline dilute iron solution and alkaline calcium solution, and has a dyeing effect on dough, surimi and cream better.

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 Patents(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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