Aquatic product bio-preservative and preparation method thereof

A biological preservative and the technology of the preservative, which are applied in the field of biological preservatives for aquatic products and their preparation, can solve the problems of prolonging the shelf life of hairtail in refrigeration and not being seen, and achieve the advantages of increasing the income of fishermen, prolonging the fresh-keeping period and maintaining the original quality. Effect

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

Problems solved by technology

[0006] So far, under conventional refrigeration conditions, the shelf life of hairtail can reach about 5 days. Except for the above re

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0016] Example: A biological preservative for aquatic products, composed of chitosan, tea polyphenols, glacial acetic acid and water, wherein the weight percentages of chitosan and tea polyphenols in the preservative are 1.0% and 0.4%, respectively; ice The volume percentage of acetic acid in the preservative is 1.0%; the rest is water.

[0017] The preparation method of the above-mentioned aquatic product preservative is as follows:

[0018] Mix 10 g of chitosan and 4 g of tea polyphenols quickly and uniformly, add 976 ml of water, stir evenly, add 10 ml of glacial acetic acid, and swell for 5-10 minutes after fully stirring to obtain a biological preservative for aquatic products. When the above biological preservative for aquatic products is used to keep the hairtail, the fresh hairtail is cleaned with ice water after the head, tail and guts are removed, and the surface water is drained, and the biological preservation liquid coating film is applied to the surface of the hairtai...

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PUM

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Abstract

The invention discloses an aquatic product bio-preservative which comprises chitosan, tea polyphenol, glacial acetic acid and water, wherein the weight percentage of the chitosan and the tea polyphenol in the preservative is respectively 0.3 to 2.5 percent and 0.2 to 1.0 percent; the volume percentage of the glacial acetic acid in the preservative is 0.5 to 2.0 percent; and the rest of water. After the chitosan and the tea polyphenol are quickly and uniformly mixed, water is added in to be uniformly stirred. Acetic acid is added in and swollen for 5 to 10min after being fully stirred, and the aquatic product bio-preservative is obtained. Compared with the prior art, the aquatic product bio-preservative of the invention can play the antibacterial, film forming and anti-oxidation roles, well keep the original quality of an aquatic product, and can significantly prolong the shelf life of the aquatic product.

Description

technical field [0001] The invention relates to a fresh-keeping agent and a preparation method thereof, in particular to a biological fresh-keeping agent for aquatic products and a preparation method thereof. Background technique [0002] In our country, 70% of the fresh-keeping processing of aquatic products is frozen or refrigerated. With the improvement of people's living standards, frozen aquatic products are more and more unpopular with consumers because their flavor and nutrition are greatly affected by freezing and thawing; while cold storage can better maintain the fresh quality of hairtail but not It can meet people's requirements for shelf life. People are paying more and more attention to seeking an effective and safe fresh-keeping technology. [0003] Hairtail is a kind of economic fish with the highest yield in my country's coastal areas. Hairtail is not only tender and delicious in meat, but also has high nutritional value. It is a kind of aquatic product tha...

Claims

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Application Information

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IPC IPC(8): A23L3/3562
CPCY02A40/90
Inventor 谢晶杨胜平韩志
Owner SHANGHAI OCEAN UNIV
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