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Storage method of rainbow trout by exceed ice temperature

A technology of rainbow trout and ice temperature, which is applied to the preservation of meat/fish with chemicals, preservation of meat/fish by freezing/cooling, etc., can solve the problems of cell destruction, slowness, nutrient loss, etc., to extend the shelf life and maintain nutrition. Ingredient, effect of prolonging shelf life

Inactive Publication Date: 2016-07-20
TIANJIN UNIV OF COMMERCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current ultra-freezing fish temperature is achieved by simply slowing down the temperature to reach the super-freezing temperature, but the large ice crystals formed during slow cooling will seriously damage the cells and cause nutrient loss

Method used

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  • Storage method of rainbow trout by exceed ice temperature
  • Storage method of rainbow trout by exceed ice temperature
  • Storage method of rainbow trout by exceed ice temperature

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] The present invention will be further described below in conjunction with the drawings.

[0015] 1. Freezing point experiment

[0016] The purpose of the freezing point experiment is to establish a freezing curve under slow freezing conditions. Observe the freezing curve to find the maximum ice crystal formation area, thereby determining the freezing point temperature.

[0017] Pre-cool the carcass of rainbow trout to 2°C as a sample of rainbow trout. The armored T-type thermocouple is used to measure the temperature at the center of the red trout sample, and the temperature is collected by a temperature collector. The sample is placed in a polystyrene foam box, and the box is placed in a precision ice temperature library (operating temperature is -20°C). The temperature is controlled accurately, and the temperature data is recorded every 10 seconds. When the temperature of the test sample is lower than -10°C, the freezing test is stopped and the test is repeated 10 times.

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Abstract

The invention discloses a storage method of rainbow trout by exceed ice temperature. The storage method of rainbow trout by exceed ice temperature disclosed by the method comprises the following steps: soaking slaughtered rainbow trout in 8% NaCl solution at 20 DEG C for half an hour; fishing the soaked rainbow trout out from the 8% NaCl solution and carrying out airing; containing the aired d rainbow trout in a vacuum plastic bag; carrying out vacuum-pumping; pre-cooling the rainbow trout in the vacuum bag to 2 DEG C; carrying out a continuous temperature-changing program so as to cool the temperature of the rainbow trout to 0.8 DEG C below zero to 2.0 DEG C below zero, so that the storage temperature is reached; and maintaining the storage temperature, so that storage of the rainbow trout at an exceed ice temperature is realized. By utilizing the storage method disclosed by the invention, the rainbow trout is not frozen during storage, and the longest storage time can be as long as 3 days.

Description

Technical field [0001] The invention relates to a refrigeration technology for seafood products, in particular to a method for storing rainbow trout at an ultra-ice temperature. Background technique [0002] Rainbow trout is a high-end rare fish with few bone spurs, delicious meat and high nutritional value, so it is very popular among people. With the development of society and the advancement of science and technology, there are more and more studies on the preservation of red trout. At present, the storage methods of fish are mainly refrigeration and freezing. The refrigeration method can better maintain the freshness and taste of the fish, but the storage period is very short, which is only suitable for short-term preservation. The freezing method is not suitable for the preservation of rainbow trout. Rainbow trout frozen by the freezing method has very poor taste and serious loss of nutrients. [0003] The ice-temperature-modified-atmosphere preservation technology, which h...

Claims

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Application Information

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IPC IPC(8): A23B4/06A23B4/20
CPCA23B4/06A23B4/20
Inventor 张哲李晓博田津津王飒飒郝俊杰俞苏苏
Owner TIANJIN UNIV OF COMMERCE
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