Method for ultralow-temperature deep cooling rapid freezing preservation of little yellow croaker

A small yellow croaker and ultra-low temperature technology, applied in the preservation of meat/fish, food preservation, meat/fish preservation with chemicals, etc., can solve the problems of affecting the quality of frozen food, loss of commodity value, economic loss, etc., to maintain color and freshness Good degree, the effect of extending the shelf life

Inactive Publication Date: 2017-10-20
OCEAN RES CENT OF ZHOUSHAN ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Low-temperature freezing damage seriously affects the quality of frozen food, and even makes it lose its commodity value, which will cause great waste of resources and economic losses

Method used

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  • Method for ultralow-temperature deep cooling rapid freezing preservation of little yellow croaker

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A method for ultra-low temperature cryogenic quick-freezing and fresh-keeping of small yellow croaker, comprising the following steps:

[0029] (1) Cleaning: select small yellow croakers, wash and drain with ice water for later use, and control the water temperature at 0-10°C;

[0030] (2) Soaking: soak and drain the small yellow croaker after draining in the cryoprotectant solution for subsequent use, and soak for 4 minutes. The cryoprotectant solution includes trehalose, sodium polyphosphate, sucrose, sodium iso-Vc, sodium citrate, and Sugar alcohol, Bletilla striata extract, conjugated linoleic acid glycerides, taurine, melissic acid, silkworm chrysalis oil and water; wherein, the mass concentration of trehalose is 2%, and the mass concentration of sodium polyphosphate is 0.1% %, the mass concentration of sucrose is 1%, the mass concentration of iso-Vc sodium is 0.05%, the mass concentration of sodium citrate is 0.1%, the mass concentration of sorbitol is 1%, the mas...

Embodiment 2

[0037] A method for ultra-low temperature cryogenic quick-freezing and fresh-keeping of small yellow croaker, comprising the following steps:

[0038] (1) Cleaning: select small yellow croakers, wash and drain with ice water for later use, and control the water temperature at 0-10°C;

[0039] (2) Soaking: soak and drain the small yellow croaker after draining in the cryoprotectant solution for subsequent use, and soak for 6 minutes. The cryoprotectant solution includes trehalose, sodium polyphosphate, sucrose, sodium iso-Vc, sodium citrate, and Sugar alcohol, Bletilla striata extract, glycerol conjugated linoleate, taurine, melissic acid, silkworm chrysalis oil and water; wherein, the mass concentration of trehalose is 3.1%, and the mass concentration of sodium polyphosphate is 0.4% %, the mass concentration of sucrose is 2.7%, the mass concentration of iso-Vc sodium is 0.28%, the mass concentration of sodium citrate is 0.22%, the mass concentration of sorbitol is 3.4%, the ma...

Embodiment 3

[0046] A method for ultra-low temperature cryogenic quick-freezing and fresh-keeping of small yellow croaker, comprising the following steps:

[0047] (1) Cleaning: select small yellow croakers, wash and drain with ice water for later use, and control the water temperature at 0-10°C;

[0048] (2) Soaking: soak and drain the small yellow croaker after draining in the cryoprotectant solution for subsequent use, and soak for 8 minutes. The cryoprotectant solution includes trehalose, sodium polyphosphate, sucrose, sodium iso-Vc, sodium citrate, and Sugar alcohol, Bletilla striata extract, conjugated linoleic acid glycerides, taurine, melissic acid, silkworm chrysalis oil and water; wherein, the mass concentration of trehalose is 4%, and the mass concentration of sodium polyphosphate is 0.5% %, the mass concentration of sucrose is 5%, the mass concentration of iso-Vc sodium is 0.3%, the mass concentration of sodium citrate is 0.3%, the mass concentration of sorbitol is 5%, the mass...

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Abstract

The invention relates to the technical field of food processing storage, and discloses a method for the ultralow-temperature deep cooling rapid freezing preservation of a little yellow croaker. One set of integral technology for the ultralow-temperature liquid-nitrogen deep cooling rapid freezing preservation of the little yellow croaker is formed through working procedures including cleaning, leaching, freeze prevention, vacuum packaging, pre-cooling, multi-stage quick freezing, packaging and the like in sequence. A product which is subjected to deep cooling processing by the method forms a small crystal, the integrity of a product cell is ensured, the original color and luster, freshness and flavor of the product can be kept, the shelf life of the product is greatly prolonged, a refreshment degree is good, perennial supply demands can be met, and the method has a good application value.

Description

technical field [0001] The invention relates to the technical field of food processing and storage, in particular to a method for ultra-low temperature cryogenic quick-freezing and preservation of small yellow croakers. Background technique [0002] Small yellow croaker (Pseudosciaena polyacti Bleeke), belonging to the order Perciformes, Sciaenidae, and genus Yellow croaker, is a warm-temperate near-bottom fish, widely distributed in the East China Sea, Yellow Sea, Bohai Sea, and the west coast of the Korean Peninsula. It is the main target of fishing. However, because the small yellow croaker dies immediately after being caught, it is prone to spoilage under the action of microorganisms and enzymes during storage and transportation, and fat oxidation will occur. Therefore it is particularly important to seek a method that is naturally safe and significantly prolongs the shelf life of small yellow croakers. [0003] Low-temperature storage can effectively prolong the shelf...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23B4/09A23B4/20
CPCA23B4/064A23B4/09A23B4/20A23V2002/00A23V2250/21A23V2250/0644A23V2250/636A23V2250/628
Inventor 杨水兵余海霞胡亚芹杨志坚李苑王丽平
Owner OCEAN RES CENT OF ZHOUSHAN ZHEJIANG UNIV
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