Anti-deterioration storage method of frozen food

A frozen food and anti-deterioration technology, which is applied in the field of anti-deterioration storage of frozen food, can solve the problems of rough shape, broken belt, bulky and other problems, and achieve the effect of inhibiting the growth and respiration of microorganisms, prolonging the storage time and improving the storage quality

Pending Publication Date: 2020-06-16
江苏丰诺供应链管理集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although the domestic production of quick-freezing machines has a certain foundation, compared with similar foreign products, there are problems such as bulky, heavy, poor low-temperature performance, and high energy consumption.
The gap between the transmission parts produced by some quick-freezing parts manufacturers and similar foreign products is mainly due to rough appearance, poor precision and unstable performance
A stainless steel belt with a circumference of more than 10 meters, due to accumulated errors, in a low temperature environment, the metal steel belt is prone to chain belt skipping and belt breakage, causing users to stop production and lose
The length of the spiral belt is generally more than 100 meters. The quality of the domestic belt is unstable, and it is prone to extrusion and disconnection;
[0004] At the same time, due to the long-term transportation of goods, it is easy to cause food corruption, shorten the shelf life of food, and bring certain economic losses to producers. Therefore, we propose an anti-deterioration storage method for frozen food

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Spray the trehalose solution on the surface of the food to be frozen. The concentration of the trehalose solution is 2Mol / L. The trehalose solution uses anhydrous trehalose with a relative humidity of more than 30%. The heat of dissolution of anhydrous trehalose is 53.4KJ / mol. Anhydrous trehalose solution heated at 100℃ for 24h can still store more than 99% of trehalose. It will not show color when reacted with glycine at 100℃ for 90 minutes, and it will not show color when reacted with polypeptone at 120℃ for 90 minutes. The spray amount is 0.2 of the weight of the food to be frozen. %, then place the frozen food sprayed with trehalose solution in a closed pressure chamber, apply pressure at 80Mpa for 1 hour, ventilate and dry at room temperature, make the frozen food moisture content not higher than 4%, and use it for later use; After processing, the frozen food is placed in a vacuum container and degassed under a pressure of 40Mpa. During degassing, the frozen food bag...

Embodiment 2

[0023] Spray the trehalose solution on the surface of the food to be frozen. The concentration of the trehalose solution is 2Mol / L. The trehalose solution uses anhydrous trehalose with a relative humidity of more than 30%. The heat of dissolution of anhydrous trehalose is 53.4KJ / mol. Anhydrous trehalose solution heated at 100°C for 24h can still store more than 99% of trehalose. It does not show color after reacting with glycine at 100°C for 90 minutes, and does not show color after reacting with polypeptone at 120°C for 90 minutes. The spray volume is 0.4 of the weight of the food to be frozen. %, then place the frozen food sprayed with trehalose solution in a closed pressure chamber, apply pressure at 120Mpa for 2h, ventilate and dry at room temperature, so that the moisture content of the frozen food is not higher than 4%, and set aside; After processing, the frozen food is placed in a vacuum container and degassed under a pressure of 80Mpa. During degassing, the frozen food ...

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PUM

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Abstract

The invention discloses an anti-deterioration storage method of frozen food. The anti-deterioration storage method comprises the following steps: spraying a trehalose solution to the surface of the to-be-frozen food; wherein the spraying amount is 0.2-0.4% of the weight of the to-be-frozen food, then putting the frozen food sprayed with the trehalose solution into a closed pressure bin, applying pressure for 1-2 h at the pressure of 80-120 Mpa, and then performing ventilation and airing under the room temperature condition to enable the moisture content of the frozen food to be not higher than4% for standby application; performing vacuumizing; performing bag opening packaging on the frozen food obtained after degassing treatment is completed; and freezing and storing, namely storing the packaged frozen food in a refrigeration house; according to the anti-deterioration storage method of the frozen food, surface treatment, vacuumizing, packaging and freezing storage are conducted on theto-be-frozen food, the fresh-keeping rate of the food can be achieved to the maximum extent, the expiration date of the food is guaranteed to the maximum extent, and therefore the expiration time ofthe food is shortened, the practical time of the food is prolonged, and practicability is achieved.

Description

Technical field [0001] The invention belongs to the field of food storage, and particularly relates to a method for preventing deterioration of frozen foods. Background technique [0002] Frozen food is divided into chilled food and frozen food. Frozen food is easy to preserve and is widely used in the production, transportation and storage of perishable food such as meat, poultry, aquatic products, milk, eggs, vegetables and fruits; [0003] Although domestic quick-freezer production has a certain foundation, compared with similar foreign products, there are problems such as bulky, heavy, poor low-temperature performance, and high energy consumption. The gap between the conveying parts produced by some quick-freezing machine parts manufacturers and similar foreign products is mainly due to rough appearance, poor accuracy and unstable performance. For a stainless steel belt with a circumference of more than 10 meters, due to accumulated errors, in a low temperature environment, th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L3/36A23L3/3562A23L3/00
CPCA23L3/00A23L3/3562A23L3/364A23V2002/00A23V2200/10A23V2250/636A23V2300/20
Inventor 金怀前
Owner 江苏丰诺供应链管理集团有限公司
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