Film preservative, preparation method thereof, and application thereof in preservation of euphausia superba

Abstract

The invention relates to a film preservative. The film preservative is composed of the following components in percentage by mass: 0.8 to 1.5 percent of soybean polysaccharide, 0.6 to 1.0 percent of sodium alginate, 0.2 to 0.5 percent of citric acid, 0.1 to 0.3 percent of phytic acid, 3 to 5 percent of a waxberry extract, 5 to 7 percent of a honeysuckle extract, 0.08 to 0.2 percent of magnesium salt and the balance of pure water. The invention also relates to a preparation method of the film preservative and application of the film preservative in preservation of euphausia superba. Compared with the prior art, the film preservative has the advantages that a film can be formed on the surface of the euphausia superba so as to inhibit the invasion and the growth of pathogenic bacteria such as bacteria and fungi, the decaying deterioration of an euphausia superba body is prevented, the euphausia superba treated by the film preservative can be stored at the temperature of 0 to 4 DEG C, the taste and the quality of shrimp meat are guaranteed, and compared with the storage energy consumption of a conventional low-temperature storage method, the storage energy consumption of the film preservative is reduced.

Description

technical field [0001] The invention relates to the field of seafood preservation, in particular to a film-coated preservation agent, a preparation method thereof and an application in preservation of 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 susta...

AI Technical Summary

Problems solved by technology

At present, Antarctic krill is generally insured through frozen storage, and the stability of frozen storage in domestic cold storage is mostly around -20°C, which not only cannot completely inhibit the autolysis of Antarctic krill, but also easily causes the fluorine in the shrimp shell to migrate into the shrimp meat , causing the fluorine content in the shrimp meat to increase, so the special cold storage for storing Antarctic krill in Japan and other countries is generally around -25°C or below. Denature the protein of krill, and at the same time make the tyrosinase in krill easily oxidized to form melanin, thus affecting the sensory quality of Antarctic krill

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