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Method of preparing ultra-low-temperature cryogenic-freezing frozen yellow croakers

A technology of ultra-low temperature and yellow croaker, which is applied in the direction of freezing/cooling preservation of meat/fish, meat/fish preservation, food processing, etc. It can solve the problems of high salt content in salty and dry products, short shelf life of chilled products, hard taste, etc. problems, to achieve better taste, significant shelf life, and flavor retention

Inactive Publication Date: 2013-07-31
OCEAN RES CENT OF ZHOUSHAN ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Salty dry products have high salt content and hard taste; chilled products have a short shelf life

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] 1. Put the small yellow croaker in tap water, rinse it and put it in the box to drain.

[0023] 2. Put the whole yellow croaker into the sample tray neatly according to the specifications, put the sample tray into the liquid nitrogen freezing device, and set the liquid nitrogen quick-freezing program: 1. It takes 2 minutes for the ambient temperature to drop to -50°C; It takes 3 minutes to reach -80°C; 3. Keep at -80°C for 5 minutes; 4. It takes 2 minutes to rise from -80°C to -50°C; 5. Take it out after 2 minutes.

[0024] 3. After the yellow croaker is taken out, it is divided into bags, vacuum-sealed and packaged to obtain the finished product. Store frozen in a -18°C freezer.

Embodiment 2

[0026] 1. Put the small yellow croaker in tap water, rinse it and put it in the box to drain.

[0027] 2. Put the whole yellow croaker neatly into the sample tray according to the specifications, and put them together in a freezer at about -18°C to cool down to about 12°C in the center of the sample, and then take it out.

[0028] 3. Put the whole yellow croaker into the sample tray neatly according to the specifications, put the sample tray into the liquid nitrogen freezing device, and set the liquid nitrogen quick-freezing program: 1. It takes 3 minutes for the ambient temperature to drop to -70°C; 2. Keep it at -70°C 8min. 3. Take it out after 3 minutes.

[0029] 4. After the yellow croaker is taken out, it is divided into bags, vacuum-sealed and packaged to obtain the finished product. Store frozen in a -18°C freezer.

Embodiment 3

[0031] 1. Put the large yellow croaker in tap water, rinse it and put it in the box to drain.

[0032] 2. Put the whole yellow croaker neatly into the sample tray according to the specifications, and put them together in a freezer at about -18°C to cool down to the center temperature of the sample at about 10°C, then take it out.

[0033] 3. Put the cooled yellow croaker sample plate into the liquid nitrogen freezing device, and set the liquid nitrogen quick freezing program: 1. It takes 2 minutes for the ambient temperature to drop to -40°C; 2. It takes 5 minutes for the ambient temperature to drop from -40°C to -100°C; 3. .-100°C for 10 minutes; 4. It takes 3 minutes to rise from -100°C to -50°C; 5. Take it out after 3 minutes.

[0034] 4. After the yellow croaker is taken out, it is divided into bags, vacuum-sealed and packaged to obtain the finished product. Store frozen in a -30°C freezer.

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PUM

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Abstract

The invention discloses a method of preparing ultra-low-temperature cryogenic-freezing frozen yellow croakers. The method comprises pre-treating the yellow croakers, cleaning, draining to obtain clean yellow croaker raw materials, and processing the yellow croaker raw materials through combination of several following technologies comprising immersing, naturally cooling, dehydrating under vacuum microwave, cooling, and cryogenic freezing, thereby effectively maintaining color, freshness and nutrition components of the yellow croakers, being long in preservation time, and being beneficial for keeping away from period of fish production and marketing, and problems of routine processing and poor frozen quality.

Description

technical field [0001] The invention belongs to the field of food processing, and relates to a method for making ultra-low temperature cryogenic quick-frozen yellow croaker products. Background technique [0002] Yellow croaker is an important fishery economic fish in my country. Its meat is delicate, delicious and nutritious. Muscle protein is rich in a variety of amino acids, among which the essential amino acids and semi-essential amino acids are high in content. In particular, the nutritional structure of large yellow croaker characterized by high protein and low fat meets the needs of today's people for high protein and low fat nutritious food, and is an ideal animal protein source for human beings. With the successful application of artificial propagation technology, the cage culture area of ​​large yellow croaker has expanded rapidly. The rapid development of seawater cage culture has made the contradiction between production and sales of large yellow croaker increa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23B4/06A23B4/033
CPCY02P60/85
Inventor 余海霞胡亚芹杨水兵胡庆兰任西营
Owner OCEAN RES CENT OF ZHOUSHAN ZHEJIANG UNIV
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