Hydrolyzed fish protein powder and preparation method thereof

A technology of hydrolyzing protein powder and protein powder, which is applied in the field of food protein and food protein processing, and can solve the problems of no use of fish viscera, unutilized protease, and heavy workload

Inactive Publication Date: 2011-06-01
湖北振源生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this method is that it is necessary to divide the viscera in advance, and then take out the fish intestines and its affiliated digestive organs from the viscera to make an "enzyme complex". low content of peptides
The shortcoming that this method exists is: a, fish raw material needs to carry out the cleaning work of removing fish head, getting viscera, and workload is still very big; c. Proteases other than intestinal proteases in fish raw materials are not utilized
[0007] The two methods of (1) and (2) of the above second category also have a common deficiency in that the fish raw materials used as hydrolysis are all fish raw materials with heads and guts removed, i.e. fish meat and fish bone spurs, while fish The protein in viscera and fish head is not utilized, and the content of free amino acids and oligopeptides is still low

Method used

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  • Hydrolyzed fish protein powder and preparation method thereof
  • Hydrolyzed fish protein powder and preparation method thereof
  • Hydrolyzed fish protein powder and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A preparation method of fish hydrolyzed protein powder, the steps are as follows:

[0043] A. Determine the fish raw material used for hydrolysis: the fish raw material is all kinds of fresh water fish that have been cleaned without removing the head and viscera, specifically including: only the pre-cleaned part after cleaning The remaining fish body after the meat was harvested, or the fresh and alive whole fish after cleaning and not cleaning, or / and the fresh and alive quick-frozen fish after cleaning and not cleaning; the fish raw material in this embodiment is only The leftover fish bodies after partial meat harvesting in advance can be mixed regardless of the type and size of the fish. In this embodiment, the fresh silver carp with an average monomer weight of about 1.5kg is used to produce surimi, and the meat is harvested by a meat harvester. 30% of the remaining fish body is used as raw material for fish hydrolyzed protein powder;

[0044] B. Hydrolyze with th...

Embodiment 2

[0049] A kind of preparation method of fish hydrolyzed protein powder, the steps different from embodiment one are as follows:

[0050] A, determine that the fish raw material that is used for hydrolysis is the fresh and alive whole fish that does not clear up after cleaning; Specifically speaking, the small miscellaneous fish that takes fresh and alive loach as the main body is made raw material, also can be silver carp, carp etc.; To inhibit microorganisms, it also adopts low-temperature crushing and homogenization, processes to a particle size of 0.5-0.8 mm, and puts it in a hydrolysis reaction tank;

[0051] B. Adjusting the pH value when hydrolyzing with the cathepsin of the fish raw material itself is pH=4.5~5.0, heating 45~50°C, the present embodiment pH=5.0, heating to 50°C, or choosing pH=4.5, adding The temperature is 45-50°C; the pH value is adjusted by adding a 15% hydrochloric acid solution; in addition, in order to better activate the cathepsin of the fish raw ma...

Embodiment 3

[0055] A kind of preparation method of fish hydrolyzed protein powder, the steps different from embodiment one are as follows:

[0056] A. Determine the fish raw materials used for hydrolysis: fresh whole fish that have been cleaned but not cleaned, and fresh and live quick-frozen fish that have been cleaned but not cleaned;

[0057] The fish raw material that is used for hydrolysis only uses the fresh and alive quick-frozen fish that does not clean up after cleaning, is another kind of embodiment;

[0058] B. When hydrolyzing with cathepsin of the fish raw material itself, adjust the pH value to be pH=4.5~5.0, heat to 45~50°C, in this embodiment, pH=4.5, heat to 50°C, or select pH=5.0, Heating at 45°C; adjusting the pH value is achieved by adding a 25% hydrochloric acid solution; in addition, in order to better activate the cathepsin of the fish raw material itself, add 0.15% of the weight of the fish raw material to the hydrolyzate. as an enzyme activator;

[0059] C, fini...

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Abstract

The invention relates to a hydrolyzed fish protein powder and a preparation method thereof, belonging to the technical fields of food protein and food protein processing. The preparation method of the hydrolyzed fish protein powder comprises the following steps: firstly determining a raw fish material used for hydrolysis; then hydrolyzing by virtue of protease of the raw fish material; and finally heating hydrolyzate to inactivate the protease, extracting the hydrolyzate, concentrating, and drying, thus the hydrolyzed fish protein powder is obtained. The hydrolyzed fish protein powder comprises protein, hydrolyzed protein, polypeptide, free amino acid, fat, carbohydrate and mineral substances, wherein the ratio of the total content of the hydrolyzed protein in the hydrolyzed fish protein powder to the total content of the protein and the ratio of the total content of the free amino acid to the total content of the hydrolyzed protein are high, and oligopeptide is also contained in the hydrolyzed fish protein powder. The invention has the advantages that in the method, human resource can be saved and waste of the raw fish material is avoided, thus being convenient for mechanized production; meanwhile, the hydrolysis process is efficient and coordinated, the quality of hydrolyzed product is high, especially the content of the free amino acid and oligopeptide is high. The hydrolyzed fish protein powder product in the invention is a human nutrition enriching supplement which is prepared from fresh water fish raw material, contains no additive, preservative, organic solvent or man-made addition material, has high water solubility and high free amino acid content and is natural.

Description

technical field [0001] The invention relates to a method for preparing fish hydrolyzed protein powder and the prepared fish hydrolyzed protein powder, belonging to the technical field of food protein and food protein processing; especially food-grade fish hydrolyzed protein products, which use enzymes to hydrolyze protein in fish raw materials, A method for preparing fish hydrolyzed protein powder. Background technique [0002] The most common methods that have been used to enzymatically hydrolyze fish proteins to prepare hydrolyzed protein products are: [0003] The first type of method: do not use the protease that exists in the fish raw material itself. The protease used is obtained from the hydrolysis of the substrate fish raw material, or the existing commercial protease is used. In short, it is not the protease that exists in the fish itself to hydrolyze the fish protein. , to produce hydrolyzed protein products, the composition of the obtained hydrolyzed products var...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23J1/04
Inventor 张振国张建初伍东元
Owner 湖北振源生物科技有限公司
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