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Pre-freezing method and device for logistics transportation of aquatic products

A pre-freezing technology for aquatic products, which is applied in household refrigeration devices, transportation and packaging, cooling fluid circulation devices, etc., can solve the problems of aquatic products losing umami and nutrition, protein hydration loss, and taste deterioration, etc., to achieve Reduce the loss of nutrients and flavor substances, reduce the generation of ice crystals, and improve the effect of storage stability

Inactive Publication Date: 2022-01-28
福建大昌盛饲料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in the case of low temperature freezing, the water in the medium around the outside of the cells freezes first, and the protein in the aquatic product is denatured due to the formation of ice crystals, the protein hydration is lost, the muscle becomes hard, and the taste becomes poor. At the same time, the unfrozen solution The concentration of electrolyte in the medium increases accordingly, causing cell death. At the same time, as the temperature decreases, the water in the cell will freeze and form ice crystals, which will cause damage to the cell membrane and organelles, and the cytoplasm will flow out, which will cause the aquatic product to lose its original quality. umami and nutrition

Method used

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  • Pre-freezing method and device for logistics transportation of aquatic products
  • Pre-freezing method and device for logistics transportation of aquatic products
  • Pre-freezing method and device for logistics transportation of aquatic products

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] A kind of method for the pre-freezing of aquatic product logistic transportation, method step is as follows:

[0048] Step 1. Soak the pretreated aquatic product in an antifreeze aqueous solution for 90 minutes, and the temperature of the antifreeze aqueous solution is 4°C;

[0049] Step 2, drying the soaked aquatic products through a hot air circulation dryer at 30°C for 30 minutes;

[0050] Step 3. Pre-freeze the dried aquatic products at -5°C for 20 minutes in a freezer cabinet;

[0051] Step 4. Vacuum freeze-dry the pre-frozen aquatic product for 3 hours at -20°C;

[0052] Step 5, the processed aquatic products are transported by refrigerated trucks.

[0053] Soaking with antifreeze can significantly improve the antifreeze performance of aquatic products, reduce the loss of nutrients and flavor substances of aquatic products during freezing, improve the storage stability of aquatic products, and pre-dry and pre-freeze before freezing. Part of the water is removed...

Embodiment 2

[0055] A kind of method for the pre-freezing of aquatic product logistic transportation, method step is as follows:

[0056] Step 1. Soak the pretreated aquatic product in an antifreeze aqueous solution for 60 minutes, and the temperature of the antifreeze aqueous solution is 8°C;

[0057] Step 2. Dry the soaked aquatic products through a hot air circulation dryer at 20°C for 60 minutes;

[0058] Step 3. Pre-freeze the dried aquatic products at -2°C for 20 minutes in a freezer cabinet;

[0059] Step 4. Vacuum freeze-dry the pre-frozen aquatic product for 5 hours at -15°C;

[0060] Step 5, the processed aquatic products are transported by refrigerated trucks.

[0061] Soaking with antifreeze can significantly improve the antifreeze performance of aquatic products, reduce the loss of nutrients and flavor substances of aquatic products during freezing, improve the storage stability of aquatic products, and pre-dry and pre-freeze before freezing. Part of the water is removed by...

Embodiment 3

[0063] Embodiment 3 is a further improvement to Embodiment 1.

[0064] Such as figure 1 , 2 , 3, 4, 5, 6, 7, 8, 9, 10, 11, and 12 show a device for the method of pre-freezing for aquatic product logistics transportation, the device is the refrigerating cabinet 1 in the step 3, and the refrigerating cabinet 1 A horizontal partition 2 and a vertical partition 3 are fixed on the inner wall, the vertical partition 3 is arranged on the side of the center of the refrigeration cabinet 1, the horizontal partition 2 is arranged near the bottom of the inner cavity of the refrigeration cabinet 1, and the space below the horizontal partition 2 is installed There is a compression refrigerator 4, the output end of the compression refrigerator 4 is connected with an air outlet pipe 5, and the air outlet pipe 5 runs through the horizontal partition 2 and communicates with the upper space. Two sets of No. 1 chutes are arranged on the side of the upper opening of the refrigeration cabinet 1 6...

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Abstract

The invention discloses a pre-freezing method and device for the logistics transportation of aquatic products. A horizontal partition plate and a vertical partition plate are fixed to the inner wall of a refrigerator cabinet, a compression refrigerator is installed in the lower space of the horizontal partition plate, the output end of the compression refrigerator is connected with an air outlet pipe, and a rotating assembly is installed in the upper space of the horizontal partition plate; the rotating assembly comprises an L-shaped mounting frame, a motor, a driving belt pulley, a driven belt pulley, a transmission belt, a rotating rod, a placement frame and an air hole, a placement assembly is arranged on the placement frame, and the placement assembly comprises a positioning hole, an aquatic product frame, a handle, a through hole, a positioning rod, a closed sliding groove, a lower magnetic patch, a closed sliding block, a closed plate, a through hole, an auxiliary rectangular groove and a lower magnetic patch. Under the action of the placement assembly and the rotating assembly, aquatic products inside are pre-frozen in a rotating mode, the freezing effect is improved, low-temperature pretreatment is conducted in a pre-freezing mode, and protein denaturation caused by direct freezing is avoided.

Description

technical field [0001] The invention relates to the field of aquatic product transportation and treatment, in particular to a pre-freezing method and device for aquatic product logistics transportation. Background technique [0002] Aquatic products are the general term for aquatic animal and plant products and their processed products produced by marine and freshwater fisheries. Aquatic products in a narrow sense refer specifically to aquatic animals. Aquatic products have been popular among consumers for their unique flavor and rich protein and other nutrients. The aquatic products are loved by those who have just caught them. There are microorganisms on the surface when they are just caught. These microorganisms will cause the spoilage of aquatic products under suitable temperature conditions. die. Therefore, when aquatic products are placed in a low-temperature environment, the growth of microorganisms can be inhibited and the storage period of aquatic products can be e...

Claims

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Application Information

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IPC IPC(8): B65D81/18B65D25/04B65D25/10B65D81/26F25D11/00F25D17/06F25D19/00F25D23/02F25D25/00F26B21/00F26B21/10
CPCB65D81/18B65D25/04B65D25/10B65D81/266F25D11/00F25D17/06F25D19/00F25D23/02F25D25/005F26B21/001F26B21/004F26B21/10
Inventor 郑心宇陈帅陈大照林锋陈烁
Owner 福建大昌盛饲料有限公司