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Preservation method of tilapia

A fresh-keeping method, tilapia technology, applied in the direction of meat/fish preservation, food preservation, meat/fish preservation through radiation/electrical treatment, etc., can solve the problems such as ineffective cold storage and preservation, and achieve the solution of thiobabi The effect of increasing acid value, prolonging the shelf life and improving the freshness period

Inactive Publication Date: 2018-03-23
BAIYANG INVESTMENT GRP INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims at the inconspicuous refrigerated and fresh-keeping effect of single fresh-keeping technology in tilapia fresh-keeping prior art, single electron beam irradiation increases the thiobarbituric acid value of tilapia, promotes the oxidation of fat, shortens the shelf life and other problems. It provides a fresh-keeping method for tilapia while maintaining the original quality of fresh fish while prolonging the storage period

Method used

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  • Preservation method of tilapia
  • Preservation method of tilapia
  • Preservation method of tilapia

Examples

Experimental program
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Effect test

Embodiment 1

[0028] Step 1, raw material pretreatment: take live fish, slaughter, remove fish scales, internal organs, fish skin, fish bones to obtain fish meat, clean and drain;

[0029] Step 2, modified atmosphere packaging: put the drained tilapia in step 1 into a sterile packaging bag, fill with carbon dioxide, nitrogen, oxygen, CO 2 Volume content is 50%, N 2 Volume content is 30%, O 2 The volume content is 20%, and the ratio of aerated volume to fish mass is 2mL / g;

[0030] Step 3, electron beam irradiation: place the packaged fish in step 2 on ice at 0°C for electron beam irradiation treatment, with an electron beam irradiation dose of 5 kGy;

[0031] Step 4, high-voltage electrostatic treatment: place the tilapia in step 3 in a high-voltage electrostatic field with a voltage of 30kV and a time of 10 minutes;

[0032] Step 5, slightly freezing and keeping fresh: the fish meat treated with high-voltage electrostatic treatment in step 4 is stored at -4°C.

[0033] (6) take out til...

Embodiment 2

[0035] Step 1, raw material pretreatment: take live fish, slaughter, remove fish scales, internal organs, fish skin, fish bones to obtain fish meat, clean and drain;

[0036] Step 2, modified atmosphere packaging: put the fish meat in step 1 into a sterile packaging bag, fill with carbon dioxide, nitrogen, oxygen, CO 2 Volume content is 70%, N 2 The volume content is 20%, O 2 The volume content is 10%, and the ratio of aerated volume to fish mass is 4mL / g;

[0037] Step 3, electron beam irradiation: place the packaged fish meat in step 2 at 0-15°C for electron beam irradiation treatment, and the electron beam irradiation dose is 9kGy;

[0038] Step 4, high-voltage electrostatic treatment: place the tilapia in step 3 in a high-voltage electrostatic field with a voltage of 50kV and a time of 20 minutes;

[0039] Step 5, slightly freezing and keeping fresh: the fish meat treated with high-voltage electrostatic treatment in step 4 is stored at -1°C.

[0040](6) take out tilapi...

Embodiment 3

[0042] Step 1, raw material pretreatment: take live fish, slaughter, remove fish scales, internal organs, fish skin, fish bones to obtain fish meat, clean and drain;

[0043] Step 2, modified atmosphere packaging: put the fish meat in step 1 into a sterile packaging bag, fill with carbon dioxide, nitrogen, oxygen, CO 2 Volume content is 55%, N 2 Volume content is 25%, O 2 The volume content is 20%, and the ratio of aerated volume to fish mass is 3mL / g;

[0044] Step 3, electron beam irradiation: place the packaged fish meat in step 2 at 10°C for electron beam irradiation treatment, and the electron beam irradiation dose is 7kGy;

[0045] Step 4, high-voltage electrostatic treatment: place the tilapia in step 3 in a high-voltage electrostatic field with a voltage of 40kV and a time of 15 minutes;

[0046] Step 5, slightly freezing and keeping fresh: storing the fish meat treated with high-voltage static electricity in step 4 at -2°C;

[0047] (6) take out tilapia on the 15t...

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Abstract

The invention provides a tilapia fresh-keeping method, the method comprising the following steps: Step 1, raw material pretreatment; Step 2, modified atmosphere packaging; Step 3, electron beam irradiation; Step 4, high-voltage electrostatic treatment; Step 5 , slightly frozen and kept fresh. The present invention combines multiple single fresh-keeping technologies, wherein high-energy electron beam irradiation is used instead of ozone water immersion treatment, which improves the safety of tilapia food, prolongs the storage period and maintains the original quality of fresh fish meat; adopts high-voltage electrostatic treatment Combined with high-energy electron beam irradiation, it solves the problems of increasing the thiobarbituric acid value and promoting fat oxidation caused by high-energy electron beam irradiation, and further improves the freshness of tilapia, with a shelf life of up to 40 days.

Description

technical field [0001] The invention relates to a food preservation method, in particular to a tilapia preservation method. Background technique [0002] The export of tilapia products in my country is mainly sold to all parts of the world in the form of single-frozen fish meat. Frozen aquatic products need to be thawed before cooking because they have been deep-frozen. Loss, destruction of tissue structure, changes in protein biochemical properties and intensification of fat oxidation, major changes in quality, not only affect the economic benefits of enterprises, but also damage the interests of consumers. However, with the development of e-commerce, supermarket retailing, the growth of people's consumption level and the enhancement of consumption awareness, consumers are increasingly pursuing healthy and delicious food. In addition, with the acceleration of the pace of life, the lifestyle of modern people has undergone drastic changes, and people need aquatic products tha...

Claims

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Application Information

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IPC IPC(8): A23B4/015A23B4/00
CPCA23B4/015A23B4/00
Inventor 白洋陈莹唐彩珍朱娟丽王珝蘅
Owner BAIYANG INVESTMENT GRP INC
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