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Method for keeping the freshness of belt fish by way that biological fresh-keeping agent is combined with gas-adjusting package

A biological preservative and modified atmosphere packaging technology, which is applied in the direction of preserving meat/fish with coating protection layer, preserving meat/fish with chemicals, and preserving meat/fish through freezing/cooling, etc., which can solve the problem of unseen and prolonged hairtail Refrigerated shelf life preservation technology and other issues to achieve the effect of delaying rapid growth and inhibiting growth and reproduction

Inactive Publication Date: 2010-06-23
SHANGHAI OCEAN UNIV
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  • Summary
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  • Description
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AI Technical Summary

Problems solved by technology

[0007] In addition to the above reports, there is no fresh-keeping technology suitable for prolonging the refrigerated shelf life of hairtail

Method used

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Experimental program
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Effect test

Embodiment

[0016] 1. Cut off the head and tail of the fresh hairtail, cut the abdominal cavity to remove the viscera, wash it in ice water, cut it into 6-7cm long sections, drain, coat the hairtail with the prepared biological preservation solution, dry it and pack it in bags .

[0017] 2. Put the above-mentioned hairtail sections drained by the biological preservative coating film into packaging bags, one bag for each hairtail section. Referring to the above process conditions, the PBI Densor-MAP mix9000 gas mixer made in Denmark is used for gas mixing, and the DQB-360W modified atmosphere packaging machine made in Shanghai is used for vacuuming, inflating and heat sealing. The gas volume ratio is 50% CO 2 , 20%O 2 and 30%N 2 .

[0018] In the above-mentioned modified atmosphere packaging process, the setting parameters of the modified atmosphere packaging machine and the gas mixer are: vacuuming for 5s-15s, inflating for 1s-5s, sealing at 120°C-150°C; the gas mixing accuracy is less...

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Abstract

The present invention discloses a method for keeping the freshness of belt fish by a way that a biological fresh-keeping agent is combined with a gas-adjusting package. The biological fresh-keeping agent is composed of chitosan, tea polyphenol, glacial acetic acid and water, wherein the weight percentages of the chitosan, the tea polyphenol and the glacial acetic acid occupied the biological fresh-keeping agent is respectively 0.5% to 1.5%, 0.2% to 0.6% and 0.5% to 1.5%, and the rest is the water. Gas filled in the gas-adjusting package is composed of CO2, O2 and N2, and the volume proportioning proportion is 50% to 80% CO2, 10% to 20% O2 and 10% to 30% N2.The method for keeping the freshness of belt fish has not side effect for human bodies, and the biological fresh-keeping agent has certain cancer-preventing cancer-resisting healthcare efficiency. The present invention has the advantages of simple operation, low cost, safety and environment protection, and can obviously prolong the shelf period of fresh belt fish.

Description

technical field [0001] The invention relates to a fresh-keeping method for aquatic products, in particular to a method for keeping hairtail fresh by combining a biological fresh-keeping agent with modified atmosphere packaging. Background technique [0002] Hairtail (Trichiurus haumela) is an economic fish with the highest output in my country's coastal areas. In the 1970s, the annual output was generally about 500,000 tons, and it rose to more than 1.1 million tons in the 1990s. Its output has been ranking first in China's marine fish production for many years the first place. Hairtail meat is tender and fat, delicious, and has high nutritional value. Due to the continuous improvement of fish freshness requirements in domestic and foreign markets and the increase in the circulation of fresh fish and the increase in circulation distance, it is very important to seek a safe and hygienic fresh-keeping method that can significantly prolong the shelf life of hairtail. [0003] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23B4/16A23B4/10A23B4/09
Inventor 谢晶杨胜平韩志
Owner SHANGHAI OCEAN UNIV
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