Method for controlling blackening of frozen euphausia superba blocks in unfreezing process

An Antarctic krill, melanization technology, applied in the direction of preservation of meat/fish by freezing/cooling, preservation of meat/fish with chemicals, etc. simple effect

Pending Publication Date: 2020-08-04
QINGDAO NAT LAB FOR MARINE SCI & TECH DEV CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Blackening is also prone to blackening during thawing, so it is necessary to develop a method to control blackening during thawing of Antarctic krill frozen blocks

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A method for preventing blackening of Antarctic krill, comprising the following steps:

[0029] (1) configuration anti-blackening preservative, wherein the mass percent of tea polyphenols is 20%, the mass percent of grape seed extract is 8%, the mass percent of 4-hexylresorcinol is 2%, the mass percent of ascorbic acid 70%.

[0030] (2) Add the anti-blackening antistaling agent to the natural water at 10°C according to the ratio of 1:1000 (m / v);

[0031] (3) According to the ratio of Antarctic krill frozen block and water 1:4 (m / v), raw materials are put into thawing;

[0032] (4) After processing 5 batches of Antarctic krill frozen blocks, replace the thawing water.

Embodiment 2

[0034] A method for preventing blackening of Antarctic krill, comprising the following steps:

[0035] (1) configuration anti-blackening preservative, wherein the mass percent of tea polyphenols is 30%, the mass percent of grape seed extract is 6%, the mass percent of 4-hexylresorcinol is 4%, the mass percent of ascorbic acid 60%.

[0036] (2) Add the anti-blackening antistaling agent to the natural water at 20°C according to the ratio of 1:1000 (m / v);

[0037] (3) According to the ratio of Antarctic krill frozen block and water 1:3 (m / v), raw materials are put into thawing;

[0038] (4) After processing 4 batches of Antarctic krill frozen blocks, replace the thawing water.

Embodiment 3

[0040] A method for preventing blackening of Antarctic krill, comprising the following steps:

[0041] (1) configuration anti-blackening preservative, wherein the mass percent of tea polyphenols is 25%, the mass percent of grape seed extract is 5%, the mass percent of 4-hexylresorcinol is 5%, the mass percent of ascorbic acid 65%.

[0042] (2) Add the anti-blackening antistaling agent to the natural water at 25°C according to the ratio of 1:1000 (m / v);

[0043] (3) According to the ratio of Antarctic krill frozen block and water 1:2 (m / v), raw materials are put into thawing;

[0044] (4) After processing 3 batches of Antarctic krill frozen blocks, replace the thawing water.

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PUM

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Abstract

The invention belongs to the technical field of food processing, and particularly relates to a method for controlling blackening of frozen euphausia superba blocks in the unfreezing process. The method comprises the following steps: putting shrimp blocks into tap water in which an anti-black preservative is dissolved in proportion, and unfreezing, wherein the anti-black preservative is formed by compounding tea polyphenol, a grape seed extract, 4-hexylresorcinol and ascorbic acid. According to the method, blackening of the frozen euphausia superba blocks in the unfreezing process can be effectively controlled, the product quality is effectively guaranteed, abuse of illegal additives can be reduced, and remarkable social benefits are achieved.

Description

Technical field: [0001] The invention belongs to the technical field of food processing, and in particular relates to a method for controlling blackening during thawing of Antarctic krill frozen blocks. Background technique: [0002] Antarctic krill is widely distributed in the waters of the continental shelf around Antarctica, and has a huge amount of resources. It is a marine resource that the world's fishery developed countries are competing to develop and utilize. Antarctic krill has a highly active melanization-promoting enzyme system, which causes rapid blackening of Antarctic krill after death, seriously affecting the appearance and quality of raw materials. [0003] In order to effectively maintain the quality of Antarctic krill raw materials, most of Antarctic krill raw materials are currently stored and transported in the form of frozen products. After the Antarctic krill frozen block is transported to the land, it needs to be thawed before processing. Blackening...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23B4/07A23B4/20
CPCA23B4/07A23B4/20
Inventor 曹荣刘淇姜晓明赵玲孙慧慧
Owner QINGDAO NAT LAB FOR MARINE SCI & TECH DEV CENT
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