Method for guaranteeing quality of frozen hairtail by using electron beam irradiation

A technology of electron beam irradiation and hairtail fish, applied in the direction of preservation of meat/fish by freezing/cooling, food freezing, meat/fish preservation, etc.

Pending Publication Date: 2022-03-15
TIANJIN UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] At present, no one has studied the effect of electron beam irradiation on frozen hairtail, so the patent ap

Method used

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  • Method for guaranteeing quality of frozen hairtail by using electron beam irradiation
  • Method for guaranteeing quality of frozen hairtail by using electron beam irradiation
  • Method for guaranteeing quality of frozen hairtail by using electron beam irradiation

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Effect test

Embodiment 1

[0022] A method for using electron beam irradiation to preserve the quality of frozen hairtail, characterized in that: the method uses high-energy electron beam irradiation technology to irradiate the frozen hairtail that has been gutted, cut into pieces and vacuum-packed, from the aspects of energy saving and shelf life Considering that, the optimal dose suitable for freezing hairtail is 1kGy, which basically does not cause damage to the nutritional components of hairtail, effectively slows down the production of trimethylamine in hairtail, inhibits the growth of volatile base nitrogen during storage, and prolongs The storage period of hairtail is shortened.

[0023] The frozen hairtail is viscera removed, cut into pieces, washed with distilled water, dried and vacuum-packed.

[0024] During the irradiation, the hairtail was irradiated with an accelerator energy of 10 MeV, a power of 20 kW, and a dose rate of 23 kGy / min.

[0025] The electron beam irradiation dose of 1kGy to...

Embodiment 2

[0029] After the fresh frozen hairtail is gutted and cut into pieces, it is washed with distilled water and dried, and the hairtail is vacuum-packed for later use. Flatten the hairtail in the tray (thickness is less than 4cm), adopt accelerator energy to be 10MeV, the power is 20kW, the electron accelerator irradiation rate 23kGy / min irradiates the hairtail, the dose is respectively 1, 3, 5, 7, 10kGy, and then The irradiated hairtails were stored in a refrigerator at -18°C.

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Abstract

The invention particularly relates to a method for guaranteeing the quality of frozen hairtail by utilizing electron beam irradiation, the method adopts a high-energy electron beam technology to irradiate the frozen hairtail which is subjected to viscera removal, dicing and vacuum packaging, and the preferable dosage suitable for the frozen hairtail is 1kGy from the aspects of energy conservation and shelf life prolonging. The dosage basically does not damage the nutritional ingredients of the hairtail, effectively inhibits the generation of trimethylamine in hairtail meat, inhibits the increase of volatile basic nitrogen in the storage process, and prolongs the storage period of the hairtail. On one hand, nutritional ingredients such as moisture, water activity and crude fat of the frozen hairtail are basically kept unchanged; on the other hand, the high-energy electron beam irradiation technology is utilized, so that the decay process of the hairtail can be efficiently slowed down in an energy-saving and pollution-free manner, and the shelf life of the frozen hairtail is prolonged to a certain extent. The method is simple in process, environmentally friendly, free of residues and suitable for large-scale application, the shelf life of the frozen hairtail can be effectively prolonged, and an application basis is provided for storage of related aquatic products.

Description

technical field [0001] The invention belongs to the technical field of aquatic product storage and preservation, and in particular relates to a method for preserving the quality of frozen hairtail by electron beam irradiation. Background technique [0002] Hairtail (Trichiurus lepturus), also known as whip fish, wakame, saury, belongs to Osteophytes, Perciformes, and Hairtail family. It is a traditional economic fish in my country. People love it. Hairtail is rich in nutrients, with many types of amino acids, rich in various minerals and trace elements, which can delay aging, reduce cholesterol levels in the body, and enhance cell vitality. The fat ratio of hairtail is relatively high, and most of them are unsaturated fatty acids. After oxidation, alcohols, aldehydes, and ketones are produced, which have a great impact on its sensory quality. Because the hairtail will die immediately when it comes out of the water, its insurance means are very limited. It is usually transpo...

Claims

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Application Information

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IPC IPC(8): A23B4/015A23B4/06
CPCA23B4/015A23B4/068A23V2002/00A23V2300/12A23V2300/20
Inventor 王田心张玉玺赵江
Owner TIANJIN UNIVERSITY OF SCIENCE AND TECHNOLOGY
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