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Quality maintaining method of frozen Euphausiasuperba

A technology for quality of Antarctic krill, applied in the direction of freezing/cooling preservation of meat/fish, etc., can solve the problem of no literature report on the quality maintenance method of frozen Antarctic krill, and achieve good application prospects and simple operation

Inactive Publication Date: 2014-08-13
EAST CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the characteristics of quality changes such as autolysis of frozen Antarctic krill, protein freezing denaturation and blackening, targeted pretreatment methods for frozen Antarctic krill must be adopted, and there is no literature report on the quality maintenance method of frozen Antarctic krill for food.

Method used

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  • Quality maintaining method of frozen Euphausiasuperba
  • Quality maintaining method of frozen Euphausiasuperba

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] (1) Inject seawater into the fish tank of the Antarctic krill fishing vessel, and the temperature is below 6°C.

[0019] (2) Weigh 15‰D-sorbitol, 0.1‰4-hexylresorcinol (4-HR) and 7‰ mixed phosphate (sodium hexametaphosphate: sodium pyrophosphate=1:1) of the above seawater , m:m), fully dissolved with a small amount of seawater, poured into the above seawater and stirred evenly. (3) Pour the freshly caught Antarctic krill into the above-mentioned seawater solution and soak for 6 minutes. The ratio (V / m) of the solution to Antarctic krill is 2:1.

[0020] (4) Take out the Antarctic krill after the above treatment and put them into a freezing plate, send them to a plate freezer to freeze, and then store them in a freezer.

[0021] The quality maintenance effect on frozen Antarctic krill is shown in Table 1. The high-quality period of frozen Antarctic krill stored at -18°C was extended from 90 days to 150 days.

[0022] Table 1

[0023]

Embodiment 2

[0025] (1) Inject seawater into the fish tank of the Antarctic krill fishing vessel, and the temperature is below 6°C.

[0026] (2) Weigh 18‰D-sorbitol, 0.4‰4-hexylresorcinol (4-HR) and 9‰ mixed phosphate (sodium hexametaphosphate: sodium pyrophosphate=1:2 , m:m), fully dissolved with a small amount of seawater, poured into the above seawater and stirred evenly. (3) Pour the freshly caught Antarctic krill into the above-mentioned seawater solution and soak for 8 minutes. The ratio (V / m) of the solution to Antarctic krill is 3:1.

[0027] (4) Take out the Antarctic krill after the above treatment and put them into a freezing plate, send them to a plate freezer to freeze, and then store them in a freezer.

[0028] The quality maintenance effect on frozen Antarctic krill is shown in Table 2. The high-quality period of frozen Antarctic krill stored at -18°C was extended from 90 days to 150 days.

[0029] Table 2

[0030]

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Abstract

The present invention relates to a quality maintaining method of frozen Euphausiasuperba. The method comprises: (1) adding 1.5-2.0% of D-sorbitol, 0.01-0.04% of 4-hexylresorcinol, and 0.7-1.0% of mixed phosphate to seawater, and completely dissolving to obtain a mixed solution; (2) pouring Euphausiasuperba into the mixed solution to soak; and (3) taking out the teated Euphausiasuperba, loading into a freezing disk, freezing, placing into a cold storage, and carrying out freeze preservation. According to the present invention, the quality of the frozen Euphausiasuperba is effectively maintained, wherein the high quality period of the frozen Euphausiasuperba stored at a temperature of -18 DEG C is prolonged to 150 days from 90 days; and the operations are simple, the method is suitable for use and mechanized treatments on deep-sea Euphausiasuperba fishing vessels, the used food additive in the process meets the regulation in the national food safety standards, the frozen Euphausiasuperba of the embodiment can be used for taking or can be processed into food, and good application prospects are provided.

Description

technical field [0001] The invention belongs to the field of storage and processing of aquatic products, in particular to a method for maintaining the quality of frozen Antarctic krill. Background technique [0002] Antarctic krill (Euphausia superba) is a marine planktonic crustacean. As one of the largest single-species organisms in the world today, the development and utilization of Antarctic krill is undoubtedly an effective way to meet human demand for aquatic products and alleviate the food crisis. Due to the remoteness of the Antarctic waters and the problems of on-board processing technology, most Antarctic krill is frozen on the fishing boat after being caught, and transported by ocean-going transport ships to designated locations on land for processing and utilization. [0003] However, unlike general aquatic products, Antarctic krill has strong protease activity, even under low temperature conditions. The freezing temperature of ocean-going transport ships and do...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23B4/09
Inventor 迟海杨宪时李学英杨峰刘会省
Owner EAST CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
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