Carnosine-enriched animal protein powder and preparation method thereof

A protein powder and carnosine technology, applied in the field of protein powder, can solve the problems of not being effectively utilized, discarded scraps, hidden safety hazards, etc., and achieve the effects of easy to achieve large-scale production, effective utilization, and low cost

Inactive Publication Date: 2019-11-08
李猷
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are few reports on the combination of carnosine and protein powder, and at present, carnosine is mainly added to food, health care products, etc., and the content of carnosine as high as 5-7wt has not been directly obtained during the preparation of protein powder. % of carnosine-rich protein powder reports
[0005] In addition, the processing of animal meat products (such as: poultry, livestock, fish and other meat products) will produce a large amount of scraps such as animal muscle, skeletal muscle, internal organs, etc. Although the content of carnosine in these scraps is very low, they contain a lot of protein. At present, most of these leftover materials are discarded and not used effectively, which not only causes a waste of resources, but also poses great pollution and safety hazards to the environment.

Method used

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  • Carnosine-enriched animal protein powder and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A preparation method of animal protein powder rich in carnosine, comprising the steps of:

[0035] a) Grinding: use the minced chicken leg meat produced in the processing of chicken products as raw material, add water according to 5 times the weight of the raw material, and grind it with a colloid mill until the particle size of the meat particles is ≤80 mesh to obtain the grinding liquid. During the grinding process, the temperature is controlled At 4°C to avoid microbial contamination and reduce the influence of enzymes in raw materials on itself;

[0036] b) Primary membrane filtration: use a microfiltration membrane with a pore size of 100nm, and use a dead-end filtration mode to filter the grinding liquid obtained in step a) to remove the salt in the grinding liquid and obtain a concentrate (the filtrate can be discarded directly );

[0037] c) Hydrolysis: adding hydrochloric acid to the concentrate obtained in step b) to adjust the pH value to 1, then hydrolyzing...

Embodiment 2

[0043] A preparation method of animal protein powder rich in carnosine, comprising the steps of:

[0044]a) Grinding: use the minced viscera produced in the processing of pork products as raw material, add water according to 8 times the weight of the raw material, and then grind it with a colloid mill until the particle size of the meat particles is ≤ 80 mesh to obtain a grinding liquid. During the grinding process, the temperature is controlled at 2°C to avoid microbial contamination and reduce the influence of enzymes in raw materials on itself;

[0045] b) Primary membrane filtration: use a microfiltration membrane with a pore size of 30nm and cross-flow filtration mode to filter the grinding solution obtained in step a) to remove the salt in the grinding solution and obtain a concentrate (the filtrate can be discarded directly );

[0046] c) Hydrolysis: adding hydrochloric acid to the concentrate obtained in step b) to adjust the pH value to 2, then hydrolyzing at 55° C. ...

Embodiment 3

[0052] A preparation method of animal protein powder rich in carnosine, comprising the steps of:

[0053] a) Grinding: use the precooked liquid produced in the processing of beef products as raw material, add water according to 5 times the weight of the raw material, and grind it with a colloid mill until the particle size of the meat particles is ≤ 80 mesh to obtain the grinding liquid. During the grinding process, the temperature is controlled At 3°C ​​to avoid microbial contamination and reduce the influence of enzymes in raw materials on itself;

[0054] b) Primary membrane filtration: use a microfiltration membrane with a pore size of 30nm and cross-flow filtration mode to filter the grinding solution obtained in step a) to remove the salt in the grinding solution and obtain a concentrate (the filtrate can be discarded directly );

[0055] c) Hydrolysis: adding hydrochloric acid to the concentrate obtained in step b) to adjust the pH value to 3, then hydrolyzing at 55° C...

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Abstract

The invention discloses carnosine-enriched animal protein powder and a preparation method thereof. The carnosine-enriched animal protein powder is animal protein powder of which the carnosine contentis 5-7wt% and which is from leftover materials produced after processing of animal meat products. The preparation method comprises the steps of performing grinding, performing first-class film filtration, performing hydrolysis, performing second-class film filtration, performing bioconversion, performing biosynthesis and performing drying. The leftover materials produced after processing of animalmeat products are used as raw materials, so that the carnosine-enriched animal protein powder of which the carnosine content is as high as 5-7wt% is directly prepared, effective utilization of wasteresources is realized, the nutrient efficacy of the animal protein powder can be improved, the carnosine-enriched animal protein powder is low in cost, and large-scale production is easy to realize.

Description

technical field [0001] The invention relates to an animal protein powder rich in carnosine and a preparation method thereof, belonging to the technical field of protein powder. Background technique [0002] Carnosine was first discovered by the Russian chemist Gurevich as a dipeptide compound, also known as β-alanyl-L-histidine, composed of β-alanine and L-histidine, soluble in water ( Colorless), alkaline, insoluble in alcohol, has extremely high thermal stability, can withstand 20 minutes at a high temperature of 120°C, and can exist stably under acidic conditions (pH<3.0). Studies from Britain, South Korea, Russia and other countries have shown that carnosine has a strong antioxidant capacity. Carnosine can scavenge reactive oxygen species (ROS) and α-β unsaturated aldehydes formed by excessive oxidation of fatty acids in cell membranes during oxidative stress. In addition, carnosine has various physiological functions such as enhancing immunity, regulating enzyme ac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23J1/00A23J3/04A23J3/34
CPCA23J1/002A23J3/04A23J3/341A23V2002/00
Inventor 李猷
Owner 李猷
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