Fresh keeping method of marsupenaeus japonicus through deepfreezing of liquid nitrogen

A technology of monodon shrimp and liquid nitrogen, applied in the direction of preservation of meat/fish by freezing/cooling, preservation of meat/fish by chemicals, etc. Good color and freshness, and the effect of extending shelf life

Inactive Publication Date: 2017-04-26
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 make

Method used

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  • Fresh keeping method of marsupenaeus japonicus through deepfreezing of liquid nitrogen

Examples

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Embodiment 1

[0031] A method for deep-freezing and fresh-keeping of monodon shrimp in liquid nitrogen, comprising the following steps:

[0032] (1) Cleaning: Select fresh shrimp with bright color and normal smell, wash with water, and control the water temperature at 10°C;

[0033] (2) Drain water: put the cleaned tiger prawns into the drain box and let it stand for 2 minutes;

[0034] (3) Soaking: Soak the drained prawns in a cryoprotectant solution for 6 minutes. The cryoprotectant solution includes sodium polyphosphate, sodium iso-Vc, sodium citrate, sorbitol, Bletilla striata extract and water . Wherein, the mass concentration of the sodium polyphosphate is 0.3%, the mass concentration of iso-Vc sodium is 0.1%, the mass concentration of sodium citrate is 0.1%, the mass concentration of sorbitol is 2%, the mass concentration of Bletilla striata extract The concentration is 1%.

[0035] (4) Quick-freezing: Arrange the soaked prawns neatly in the sample tray of the liquid nitrogen cryo...

Embodiment 2

[0041] A method for deep-freezing and fresh-keeping of monodon shrimp in liquid nitrogen, comprising the following steps:

[0042] (1) Cleaning: Select fresh shrimp with bright color and normal smell, wash with water, and control the water temperature at 5°C;

[0043] (2) Drain water: put the cleaned tiger prawns into the drain box and let it stand for 3 minutes;

[0044] (3) Soaking: Soak the drained prawns in a cryoprotectant solution for 4 minutes. The cryoprotectant solution includes sodium polyphosphate, sodium iso-Vc, sodium citrate, sorbitol, Bletilla striata extract and water . Wherein, the mass concentration of the sodium polyphosphate is 0.5%, the mass concentration of iso-Vc sodium is 0.05%, the mass concentration of sodium citrate is 0.2%, the mass concentration of sorbitol is 5%, the quality of Bletilla striata extract The concentration is 0.5%.

[0045] (4) Quick-freezing: Arrange the soaked prawns neatly in the sample tray of the liquid nitrogen cryogenic spr...

Embodiment 3

[0051] A method for deep-freezing and fresh-keeping of monodon shrimp in liquid nitrogen, comprising the following steps:

[0052] (1) Cleaning: Select fresh shrimp with bright color and normal smell, wash with water, and control the water temperature at 0°C;

[0053] (2) Drain water: put the cleaned tiger prawns into the drain box and let it stand for 4 minutes to drain;

[0054] (3) Soaking: Soak the drained prawns in a cryoprotectant solution for 8 minutes. The cryoprotectant solution includes sodium polyphosphate, sodium iso-Vc, sodium citrate, sorbitol, Bletilla striata extract and water . Wherein, the mass concentration of the sodium polyphosphate is 0.1%, 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 1%, the mass concentration of Bletilla striata extract The concentration is 1.5%.

[0055] (4) Quick-freezing: Arrange the soaked prawns neatly in the sample tray of the liquid nit...

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Abstract

The invention relates to the technical field of food processing and storing, and discloses a fresh keeping method of marsupenaeus japonicus through deepfreezing of liquid nitrogen. Working procedures of performing cleaning, performing draining, preventing frostbite, performing multi-stage quick-freezing, plating ice coating, performing packaging and the like are sequentially performed, so that a set of complete fresh keeping technology for the marsupenaeus japonicus through the deepfreezing of the liquid nitrogen is formed. Ice crystals formed by products after deepfreezing treatment are small, so that the integrity of product cells is guaranteed, the original color, the original freshness and the original flavor of the products can also be maintained, the shelf life of the products is greatly prolonged, the fresh keeping degree is good, supply requirements throughout the year can be met, and the fresh keeping method has 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 cryogenically quick-freezing and preserving the shrimp with liquid nitrogen. Background technique [0002] Spotted prawns, also known as bamboo prawns, tiger prawns, grass prawns, black tiger prawns, and flower prawns, are marine shrimps with high nutritional value and certain health care functions, and are of great development and utilization value. The distribution area is very wide, from southern Japan, South Korea, the coast of my country, the Philippines, Indonesia, Australia, Thailand, India to the east coast of Africa. Compared with some other aquatic products, it is easy to be spoiled and deteriorated during fishing, transportation, processing and storage. Shrimp usually dies soon after fishing. If the distance between the points is relatively long, it will be difficult to keep fresh, which seriously affects the quality of the lobster. W...

Claims

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Application Information

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IPC IPC(8): A23B4/20A23B4/06A23B4/08A23B4/09A23B4/18
CPCA23B4/20A23B4/06A23B4/08A23B4/09A23B4/18
Inventor 杨水兵余海霞胡亚芹杨志坚符莎露王丽平
Owner OCEAN RES CENT OF ZHOUSHAN ZHEJIANG UNIV
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