Method for treating and fresh-keeping sciaenops ocellatus by using acidic electrolyzed water

An acid electrolyzed water, American red fish technology, applied in the preservation of meat/fish with chemicals, preservation of meat/fish by freezing/cooling, etc., can solve the problem that the quality is difficult to guarantee, lack of fresh fish muscle fresh texture, not in line with nature, Green, healthy needs and other issues, to achieve the effect of high degree of automation, reasonable design, and lower freezing point

Active Publication Date: 2013-03-13
ZHEJIANG OCEAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, after the American redfish is cultivated and the finished products are caught, the products have the following processing and preservation sales channels: 1. A small amount is transported to the destination by a keep-alive ship for sale; In the foam box, a layer of crushed ice and a layer of fish are packed in a fresh-keeping and sealed whole box. Generally, fresh-keeping fish in this way mainly enter supermarkets and vegetable markets. This kind of fresh-keeping fish can be transported by road for 3-4 days in winter. The freshness is not bad. If the foam After 13-14 days, the freshness index can s...

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  • Method for treating and fresh-keeping sciaenops ocellatus by using acidic electrolyzed water
  • Method for treating and fresh-keeping sciaenops ocellatus by using acidic electrolyzed water

Examples

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Embodiment 1

[0035] 1) Pretreatment of American redfish: wash fresh American redfish and set aside;

[0036] 2) Acidic electrolyzed water spraying treatment: Put the American redfish after step 1) into the fresh-keeping treatment device, adjust the temperature inside the fresh-keeping treatment device to 8°C, and the spraying speed to 0.2 cubic meters per hour. Turn the redfish over and spray until the acidic electrolyzed water completely submerges the American redfish. The acidic electrolyzed water has a pH value of 2.45, an available chlorine concentration of 52mg / L, and an oxidation-reduction potential value of 1175mV;

[0037] 3) Acidic electrolyzed water soaking treatment: adjust the temperature of the acidic electrolyzed water in the fresh-keeping treatment device to 4°C, close the spray control valve 2, open the water inlet valve 5 and the water outlet valve 6, and make the acidic electrolyzed water in the fresh-keeping treatment device every 5 Cycle once every minute, soak for 30 m...

Embodiment 2

[0042] 1) Pretreatment of American redfish: wash fresh American redfish and set aside;

[0043]2) Spray treatment with acidic electrolyzed water: put the American redfish after step 1) into the fresh-keeping treatment device, adjust the temperature inside the fresh-keeping treatment device to 6°C, and the spraying speed to 0.05 cubic meters per hour. Turn the redfish over and spray until the acidic electrolyzed water completely submerges the American redfish. The acidic electrolyzed water has a pH value of 2.4, an available chlorine concentration of 50mg / L, and an oxidation-reduction potential value of 1165mV;

[0044] 3) Acidic electrolyzed water immersion treatment: adjust the temperature of the acidic electrolyzed water in the fresh-keeping treatment device to 3°C, close the spray control valve 2, open the water inlet valve 5 and the water outlet valve 6, and make the acidic electrolyzed water in the fresh-keeping treatment device every 5 Cycle once every minute, soak for 2...

Embodiment 3

[0049] 1) Pretreatment of American redfish: wash fresh American redfish and set aside;

[0050] 2) Spray treatment with acidic electrolyzed water: Put the American redfish after step 1) into the fresh-keeping treatment device, adjust the temperature inside the fresh-keeping treatment device to 10°C, and the spraying speed to 0.5 cubic meters per hour. Turn the redfish over and spray until the acidic electrolyzed water completely submerges the American redfish. The acidic electrolyzed water has a pH value of 2.5, an available chlorine concentration of 55mg / L, and an oxidation-reduction potential value of 1185mV;

[0051] 3) Acidic electrolyzed water soaking treatment: adjust the temperature of the acidic electrolyzed water in the fresh-keeping treatment device to 6°C, close the spray control valve 2, open the water inlet valve 5 and the water outlet valve 6, and make the acidic electrolyzed water in the fresh-keeping treatment device every 5 Cycle once every minute, soak for 35...

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Abstract

The invention provides a method for treating and fresh-keeping sciaenops ocellatus by using acidic electrolyzed water and belongs to the technical field of preservation of aquatic products. The method comprises the following steps of: 1) pre-treating the sciaenops ocellatus; 2) carrying out spraying treatment by using the acidic electrolyzed water; 3) carrying out immersing treatment by using the acidic electrolyzed water; 4) carrying out freezing point injection treatment; 5) packaging in vacuum; and 6) preserving at an ice temperature. According to the method for treating and fresh-keeping the sciaenops ocellatus by using the acidic electrolyzed water, disclosed by the invention, the kill ratio of common bacteria on the surface of the sciaenops ocellatus is more than 99%; and the freshness degree, the flavor and the texture of the sciaenops ocellatus can be guaranteed to the greatest extent within 40-50 days.

Description

technical field [0001] The invention belongs to the technical field of fresh-keeping aquatic products, and in particular relates to a method for treating fresh-keeping American redfish with acidic electrolyzed water. Background technique [0002] As the output of seawater cultured fish increases year by year, the processing of cultured products has become a key problem to be solved urgently. More than 90% of my country's aquatic product processing output is completed by the seven coastal provinces of Shandong, Zhejiang, Fujian, Guangdong, Liaoning, Jiangsu and Guangxi. Among them, the output value of aquatic product processing in Shandong ranks first in the country, and Zhejiang only ranks fourth. According to the comparison of aquatic product processing benefits (the ratio of output to output value), Zhejiang can only rank fifth. According to research, the processing of aquaculture products is one of the important reasons restricting the expansion of aquaculture scale and t...

Claims

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Application Information

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IPC IPC(8): A23B4/20A23B4/09
Inventor 夏灵敏徐梅英罗红宇
Owner ZHEJIANG OCEAN UNIV
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