Method for preserving small yellow croaker by combining partial freezing and composite preservative

A composite fresh-keeping and small yellow croaker technology, which is applied in the preservation of food ingredients as antimicrobials, food ingredients, and chemical preservation of meat/fish, etc., can solve the problems of short refrigeration and fresh-keeping time of small yellow croaker, and achieve high food safety and guarantee integrity. performance, good fresh-keeping performance

Inactive Publication Date: 2016-04-20
OCEAN RES CENT OF ZHOUSHAN ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a method for keeping fresh of small yellow croaker with partial freezing combined with a composite preservative that can significantly prolong the shelf life of small yellow croaker to more than 25 days in order to solve the short storage time of the existing small yellow croaker with strong practicability

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A method for partially freezing small yellow croaker combined with a composite preservative for fresh-keeping, the method comprises the following steps:

[0024] 1) Fresh small yellow croaker is washed with ice water and then immersed in neutral electrolyzed water at 0-4°C for 5 minutes and drained for use; among them, the small yellow croaker is immersed in neutral electrolyzed water while ultrasonically oscillating, with an ultrasonic power of 45kw; the pH of the neutral electrolyzed water is 6, the redox potential is 750mv, and the available chlorine content is 33mg / L;

[0025] 2) The small yellow croaker obtained in step 1) was immersed in the composite preservative solution for 5 minutes, removed and drained and put into a PE packaging bag; the composite preservative was composed of the following components by weight: 0.1% lysozyme, 2% casein acid Sodium, 3% B vitamins 2 , 0.5% erythritol, 3% mushroom fruit and vegetable extract, 3% marine oligosaccharide, 0.5% ta...

Embodiment 2

[0030] A method for partially freezing small yellow croaker combined with a composite preservative for fresh-keeping, the method comprises the following steps:

[0031] 1) Fresh small yellow croaker is washed with ice water and then immersed in neutral electrolyzed water at 0-4°C for 8 minutes and drained for use; among them, the small yellow croaker is immersed in neutral electrolyzed water while ultrasonically oscillating, with an ultrasonic power of 50kw; the pH of the neutral electrolyzed water is 6.2, the redox potential is 770mv, and the available chlorine content is 34mg / L;

[0032] 2) The small yellow croaker obtained in step 1) was immersed in the composite preservative solution for 7 minutes, taken out and drained and put into a PE packaging bag; the composite preservative was composed of the following components by weight: 0.2% lysozyme, 2.3% casein acid Sodium, 5% B vitamins 2 , 0.8% erythritol, 4% mushroom fruit and vegetable extract, 5% marine oligosaccharide, 0...

Embodiment 3

[0037] A method for partially freezing small yellow croaker combined with a composite preservative for fresh-keeping, the method comprises the following steps:

[0038] 1) Fresh small yellow croaker is washed with ice water and then immersed in neutral electrolyzed water at 0-4°C for 10 minutes and drained for use; among them, the small yellow croaker is immersed in neutral electrolyzed water while ultrasonically oscillating, with an ultrasonic power of 55kw; the pH of the neutral electrolyzed water is 6.5, the redox potential is 800mv, and the available chlorine content is 35mg / L;

[0039] 2) The small yellow croaker obtained in step 1) was immersed in the composite preservative solution for 10 minutes, removed and drained and put into a PE packaging bag; the composite preservative was composed of the following components by weight: 0.25% lysozyme, 2.5% casein acid Sodium, 8% B vitamins 2 , 1% erythritol, 5% mushroom fruit and vegetable extract, 6% marine oligosaccharide, 1....

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Abstract

The invention relates to a method for preserving small yellow croaker by combining partial freezing and composite preservative. The method comprises the following steps of washing the fresh small yellow croaker by ice water, soaking into a neutral electrolyzed water with temperature of 0 to 4 DEG C for 5-10min, and draining off for use; soaking the small yellow croaker into the composite preservative for 5-10min, fetching out, draining off, and putting into a package bag; putting the small yellow croaker into a freezer with temperature of -18 to -20 DEG C, precooling, lowering the temperature for 3-5min, putting into a programmable type constant-temperature and constant-humidity box, and storing under partial freezing conditions. The method has the advantages that the product stored by the partial freezing method can guarantee the integrity of product cells, and maintain the original luster, freshness and flavor; the edible safety of each component of the composite preservative is high; by utilizing the synergistic function of the components, the preserving property is good; at the premises of guaranteeing the edible quality and the sensing quality of the small yellow croaker, the shelf life is greatly prolonged, and the freshness is still maintained after the small yellow croaker is stored for 25 days.

Description

technical field [0001] The invention belongs to the technical field of food processing and storage, and designs a composite fresh-keeping method for aquatic products, in particular to a method for partial freezing treatment of small yellow croaker combined with a composite fresh-keeping agent. Background technique [0002] Small yellow croaker (Pseudosciaena polyacti Bleeke), belonging to Perciformes, Sciaenidae, yellow croaker, is a warm-temperate near bottom fish, widely distributed in the East China Sea, Yellow Sea and Bohai Sea and the west coast of the Korean Peninsula. It is a fishery the main target of fishing. However, because the small yellow croaker died immediately after being caught, it is prone to spoilage under the action of microorganisms and enzymes during storage and transportation, and fat oxidation will occur. Therefore, it is particularly important to seek a natural and safe method to significantly prolong the shelf life of small yellow croaker. [0003...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23B4/22A23B4/20
CPCA23B4/22A23B4/20A23V2002/00A23V2200/10A23V2250/0644A23V2250/6402A23V2250/21A23V2250/208A23V2250/60A23V2250/7044A23V2250/54246A23V2250/30
Inventor 杨水兵胡亚芹杨志坚余海霞胡玥
Owner OCEAN RES CENT OF ZHOUSHAN ZHEJIANG UNIV
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