Shrimp blackening preventing agent, and preparation method and application thereof in euphausia superba

An Antarctic krill and shrimp technology, which is applied in the field of shrimp anti-melanizing agent and its preparation, can solve the problems of reducing the sensory characteristics of aquatic products, reducing the sensory characteristics of food, chemical residues, etc., and achieves fewer preparation processes and more reduction. Phenolase activity and the effect of prolonging the fresh-keeping period

Inactive Publication Date: 2015-11-11
ZHEJIANG OCEAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the anti-blackening agent of shrimp is generally compounded with chemical reagents. These methods will reduce the sensory properties of aquatic products, and there will be chemical reagent residues, which is harmful to human health. For example: the patent number is ZL201110217956.3 (the authorized announcement number is CN102366154B)'s Chinese invention patent "Sulphur-free Composite Preservative for Inhibiting Penaeus vannamei from Blackening and Preparation Method thereof" discloses a sulfur-

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Take 12 parts of grape seed extract (purchased from Shaanxi Ruikang Biological Engineering Co., Ltd., the same below), 0.8 parts of 4-hexylresorcinol (purchased from Xi’an Dafengshou Biotechnology Co., Ltd., the same below), 0.1 part Citric acid, 0.12 parts of phytic acid, 3 parts of chitosan and 30 parts of deionized water, at room temperature, dissolve grape seed extract and 4-hexylresorcinol in deionized water, stir to fully dissolve, add Mix phytic acid and citric acid, then add chitosan, stir at 40°C for 15 minutes, and finally cool down to room temperature to obtain shrimp anti-blackening agent.

[0020] Select fresh Antarctic krill, wash them with sterile water, and then wash them with 2-3cm 3 The size of the crushed ice pre-cooled for 5 minutes to make it shock. Immerse the shocked Antarctic krill in the above shrimp anti-blackening agent for 20 minutes at 4°C, wherein the ratio of solid to liquid between Antarctic krill and shrimp anti-blackening agent is 1:2....

Embodiment 2

[0023] Take 8 parts of grape seed extract, 1.2 parts of 4-hexylresorcinol, 0.15 parts of citric acid, 0.2 parts of phytic acid, 5 parts of chitosan and 30 parts of deionized water. Dissolve 4-hexylresorcinol in deionized water, stir to fully dissolve, add phytic acid and citric acid and mix well, then add chitosan, stir at 45°C for 13min, and finally cool down to room temperature to obtain shrimp anti-corrosion blackening agent.

[0024] Select fresh Antarctic krill, wash them with sterile water, and then wash them with 2-3cm 3 The size of crushed ice was pre-cooled for 7 minutes to make it shock. Immerse the shocked Antarctic krill in the above shrimp anti-blackening agent for 25 minutes at 4°C, wherein the ratio of solid to liquid between Antarctic krill and shrimp anti-blackening agent is 1:3. Finally, dry the surface moisture of the soaked Antarctic krill with 5°C, wind speed, and 3.3m / s cold wind to a water content of 30%, then put them into sterile food preservation ba...

Embodiment 3

[0027] Take 10 parts of grape seed extract, 1 part of 4-hexylresorcinol, 0.12 parts of citric acid, 0.17 parts of phytic acid, 4 parts of chitosan and 40 parts of deionized water. Dissolve 4-hexylresorcinol in deionized water, stir to fully dissolve, add phytic acid and citric acid and mix well, then add chitosan, stir at 45°C for 15min, and finally cool down to room temperature to obtain shrimp anti-corrosion blackening agent.

[0028] Select fresh Antarctic krill, wash them with sterile water, and then wash them with 2-3cm 3 The size of the crushed ice pre-cooled for 10 minutes to make it shock. Immerse the shocked Antarctic krill in the above shrimp anti-blackening agent for 30 minutes at 4°C, wherein the ratio of solid to liquid between Antarctic krill and shrimp anti-blackening agent is 1:2.5. Finally, dry the surface moisture of the soaked Antarctic krill with 4°C, wind speed, and 2.4m / s cold wind to a water content of 25%, then put them into sterile food preservation ...

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PUM

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Abstract

The invention relates to a shrimp blackening preventing agent. The shrimp blackening preventing agent comprises the following components in parts by mass: 8 to 12 parts of grape seed extract, 0.8 to 1.2 parts of 4-hexylresorcinol, 0.1 to 0.15 part of citric acid, 0.12 to 0.2 part of phytic acid, 3 to 5 parts of chitosan and 30 to 50 parts of deionized water. The invention also relates to a preparation method of the shrimp blackening preventing agent and application of the shrimp blackening preventing agent in euphausia superba. Compared with the prior art, the shrimp blackening preventing agent has the advantages that preparation processes are few, the operation is simple, blackening of the euphausia superba can be effectively inhibited, the antibacterial effect is good, and the freshness of the euphausia superba can be retained, so that the freshness lifetime of an euphausia superba product is effectively prolonged, and the economic value of the euphausia superba product is increased.

Description

technical field [0001] The invention relates to the field of fresh-keeping aquatic products, in particular to a shrimp anti-blackening agent, a preparation method thereof and an application in Antarctic krill. Background technique [0002] Antarctic krill (Euphausia superba), also known as giant krill or Antarctic krill, is a krill that lives in the waters of Antarctica in the Southern Ocean. Antarctic krill is a shrimp-like invertebrate that lives in groups, sometimes with a density of 10,000-30,000 individuals / m 3 . They feed on tiny phytoplankton, from which they convert the energy from primary production to maintain their life cycle in the pelagic zone. They are key species in the Antarctic ecosystem. In terms of biomass, they may be the most abundant on Earth. successful animal species. Antarctic krill is the largest animal protein pool on earth. According to estimates, the biological reserves of Antarctic krill are 400-1.55 billion tons, and the annual sustainable c...

Claims

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Application Information

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IPC IPC(8): A23B4/10A23B4/20
Inventor 霍健聪邓尚贵
Owner ZHEJIANG OCEAN UNIV
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