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Method for quickly freezing belt fish and belt fish products

A technology for octopus and products, which is applied in the direction of preserving meat/fish by freezing/cooling, and preserving meat/fish with chemicals, etc. It can solve the problems of lack of application technology and achieve a significant shelf life, better taste, and extended shelf life. Effect

Active Publication Date: 2013-05-01
OCEAN RES CENT OF ZHOUSHAN ZHEJIANG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Scholars at home and abroad have used liquid nitrogen ultra-low temperature to deep freeze edible mushrooms, broccoli and other foods, but there is still a lack of mature application technology for deep freezing hairtail and its products

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] 1. Put the hairtail in tap water, rinse it and put it in the box to drain for 5 minutes.

[0017] 2. Put the whole hairtail neatly into the sample tray according to the specifications, put them together in the -18°C freezer to cool down to about 10°C in the center of the sample, and take it out.

[0018] 3. Put the cooled hairtail 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 3 minutes for the ambient temperature to drop from -40°C to -80°C; 3. .-80°C for 15 minutes; 4. It takes 5 minutes to rise from -80°C to -50°C; 5. Take it out after 3 minutes.

[0019] 4. After the hairtail 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

[0021] 1. Put the hairtail in tap water, rinse it and put it in the box to drain for 5 minutes.

[0022] 2. Put the whole hairtail neatly into the sample tray according to the specifications, put them together in a -18°C freezer to cool down to about 8°C in the center of the sample, and take it out.

[0023] 3. Put the cooled hairtail 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 -70°C; 2. It takes 3 minutes for the ambient temperature to drop from -70°C to -100°C; 3. .-100°C for 13 minutes; 4. Take it out 4 minutes after the end.

[0024] 4. After the hairtail is taken out, it is divided into bags, vacuum-sealed and packaged to obtain the finished product. Store frozen in a -40°C freezer.

Embodiment 3

[0026] 1. Remove the head, tail, and viscera of the hairtail, rinse it, put it in the frame and drain for 5 minutes.

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

[0028] 3. Put the cooled hairtail 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 4 minutes for the ambient temperature to drop from -40°C to -100°C; 3. .-100°C for 8 minutes; 4.-100°C to -50°C for 3 minutes; 5. Take it out after 2 minutes.

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

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PUM

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Abstract

The invention discloses a method for quickly freezing belt fish and products thereof. According to the invention, the belt fish are preprocessed, cleaned and leached to obtain clean belt fish raw materials, then the belt fish raw materials are processed by the selected quick-freezing technology, wherein the quick-freezing technology comprises temperature reducing or seasoning processing, quick-freezing processing and freezing storage processing. Through the processing method provided by the invention, the freshness and nutritional ingredients of the belt fish and the products thereof are kept favorable, the shelf life is remarkably prolonged, the belt fish harvest period is avoided and the problem of poor quality by conventional freezing storage is solved; and the quickly frozen belt fish and products thereof can be taken as ideal goods for catering or gift giving and the like.

Description

technical field [0001] The invention belongs to the field of food processing and relates to a method for quickly freezing hairtail and hairtail products. Background technique [0002] Hairtail is one of the most important catches in the East my country Sea of ​​China. In recent years, the average annual catch has reached about 1 million tons, ranking first in my country's marine fish production. Generally, the delivery period of hairtail fish in the East China Sea is short. The average price of large hairtail during the harvest period is 60-80 yuan / kg. After the delivery period, the price is extremely high due to the small quantity. The fresh hairtail can be sold or processed at any time after being frozen and stored after a little processing, and the economic benefit is significantly improved. Now hairtail is mostly frozen at a temperature lower than -35°C, and the freezing time is longer. Frozen products have a shorter shelf life, and their quality and freshness decline ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23B4/06A23B4/24
Inventor 余海霞胡亚芹杨水兵王天明胡庆兰任西营
Owner OCEAN RES CENT OF ZHOUSHAN ZHEJIANG UNIV
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