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

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...

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-free composite preservative, which consists of the following components mixed with water as a solvent : 4-hexylresorcinol 0.01~0.03mg / ml, citric acid 5.00~9.00mg / ml, disodium EDTA 1.8~2.20mg / ml, sodium dihydrogen phosphate 0.10~0.20mg / ml

[0004] At present, commonly used fresh-keeping methods for shrimp include low-temperature preservation, chemical substance treatment, biologically active substance treatment, modified atmosphere and gas preservation, and irradiation preservation. Problems such as chemical residues