Method for preserving pseudosciaena crocea by combining natural preservative with modified atmosphere packaging

A technology of modified atmosphere packaging and fresh-keeping methods, which is applied in the direction of preserving meat/fish with chemicals, and can solve the problem of not being able to guarantee the freshness, flavor and texture of fresh fish, not conforming to natural, green, healthy, and lacking the tender texture of fresh fish muscles and other problems, to achieve the effect of superior extraction and concentration method, convenient operation and simple preparation process

Inactive Publication Date: 2014-12-31
ZHEJIANG OCEAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the large yellow croaker has the following sales channels for processing and preservation: a small amount is transported to the destination by a keep-alive ship for sale; some is preserved by chilling, that is, in a foam box, a layer of crushed ice and a layer of fish are kept fresh and sealed in a whole box , Generally, fresh-keeping fish in this way mainly enter supermarkets and vegetable markets. The freshness of this kind of fresh-keeping fish in winter road transportation is 3-4 days. The index can still reach the first level, but it is difficult to guarantee the

Method used

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  • Method for preserving pseudosciaena crocea by combining natural preservative with modified atmosphere packaging

Examples

Experimental program
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Effect test

Embodiment 1

[0038] 1) Slaughter the fresh large yellow croaker, wash it, and set it aside;

[0039] 2) Put the large yellow croaker into a natural antistaling agent and soak for 10 minutes at a temperature of 3°C. The natural antistaling agent contains the following substances in weight content: 10 parts of Fructus officinalis extract, 15 parts of Ginkgo leaf extract, grapefruit extract 30 parts, 45 parts of perilla extract;

[0040] 3) Modified atmosphere packaging: take out and drain the large yellow croaker processed in step 2), put it into a packaging bag, use a gas proportional mixer to mix the gas, and use a modified atmosphere packaging machine to vacuumize, inflate and seal. Packaging; the gas filled in modified atmosphere packaging is composed of the following substances in volume ratio: CO2 is 60%, O2 is 15%, and N2 is 25%;

[0041] 4) Refrigerate the modified-atmosphere-packed large yellow croaker at a temperature of 1°C.

Embodiment 2

[0043] 1) Slaughter the fresh large yellow croaker, wash it, and set it aside;

[0044] 2) Put the large yellow croaker into a natural antistaling agent and soak for 12 minutes at a temperature of 5°C. The natural antistaling agent contains the following substances in weight content: 12 parts of Fructus officinalis extract, 18 parts of Ginkgo leaf extract, grapefruit extract 25 parts, 45 parts of perilla extract;

[0045] 3) Modified atmosphere packaging: take out and drain the large yellow croaker processed in step 2), put it into a packaging bag, use a gas proportional mixer to mix the gas, and use a modified atmosphere packaging machine to vacuumize, inflate and seal. Packaging; the gas filled in modified atmosphere packaging is composed of the following substances in volume ratio: CO2 is 65%, O2 is 12%, and N2 is 23%;

[0046] 4) Refrigerate the modified atmosphere packaged large yellow croaker at 2°C.

Embodiment 3

[0048] 1) Slaughter the fresh large yellow croaker, wash it, and set it aside;

[0049] 2) Put the large yellow croaker into a natural antistaling agent and soak for 18 minutes at a temperature of 8°C. The natural antistaling agent contains the following substances in weight content: 18 parts of Fructus officinalis extract, 20 parts of Ginkgo leaf extract, grapefruit extract 25 parts, 37 parts of perilla extract;

[0050] 3) Modified atmosphere packaging: take out and drain the large yellow croaker processed in step 2), put it into a packaging bag, use a gas proportional mixer to mix the gas, and use a modified atmosphere packaging machine to vacuumize, inflate and seal. Packaging; the gas filled in modified atmosphere packaging is composed of the following substances in volume ratio: CO2 is 70%, O2 is 12%, and N2 is 18%;

[0051] 4) Refrigerate the modified-atmosphere-packed large yellow croaker at a temperature of 3°C.

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Abstract

The invention discloses a method for preserving pseudosciaena crocea by combining a natural preservative with modified atmosphere packaging, and belongs to the technical field of aquatic product preservation. The method comprises the following steps: (1) slaughtering the fresh and alive pseudosciaena crocea and flushing; (2) soaking the pseudosciaena crocea in the natural preservative, wherein the natural preservative contains the following materials in parts by weight: 10-20 parts of melicope patulinervia extract liquid, 15-25 parts of ginkgo leaf extract liquid, 20-30 parts of grapefruit extract liquid and 30-45 parts of purple perilla extract liquid; (3) performing modified atmosphere packaging; (4) refrigerating for preservation. The method has preservation and anti-corrosion effects and can delay the food decomposition and deterioration speed; a thin film formed on the surface of the pseudosciaena crocea is nontoxic and edible; by combination with the modified atmosphere packaging, the preservation time of the pseudosciaena crocea is prolonged and the preservation effect of the pseudosciaena crocea is improved; moreover, the method is simple, convenient, safe, pure natural and low in production cost; the pseudosciaena crocea processed by the method still has the freshness, flavor and texture similar to those of alive pseudosciaena crocea within 55-65 days.

Description

technical field [0001] The invention belongs to the technical field of fresh-keeping of aquatic products, and in particular relates to a fresh-keeping method of large yellow croaker in combination with a natural fresh-keeping agent and modified atmosphere packaging. Background technique [0002] At present, the large yellow croaker has the following sales channels for processing and preservation: a small amount is transported to the destination by a keep-alive ship for sale; some is preserved by chilling, that is, in a foam box, a layer of crushed ice and a layer of fish are kept fresh and sealed in a whole box , Generally, fresh-keeping fish in this way mainly enter supermarkets and vegetable markets. The freshness of this kind of fresh-keeping fish in winter road transportation is 3-4 days. The index can still reach the first level, but it is difficult to guarantee the quality beyond this deadline; the caught fish are transported to the processing factory to be ice-coated ...

Claims

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Application Information

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IPC IPC(8): A23B4/18A23B4/16
Inventor 段玉婧傅林静
Owner ZHEJIANG OCEAN UNIV
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