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Low-temperature air-conditioning coating preservation method for prolonging storage life of eggs

A coating film preservation and shelf-life technology, which is applied in egg preservation, food preservation, egg preservation by freezing/cooling, etc., can solve the problems of affecting sensory and processing quality, reducing egg grade, and protein thinning, etc., so as to save social costs, Antioxidant and antiviral effects of improving and slowing down life decay

Inactive Publication Date: 2017-06-20
FOSHAN HENGNAN MEDICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The former requires a lot of investment, and it makes the protein thinner, lowers the grade of eggs and affects the sensory and processing quality, and cannot be exported. The latter is the trend of development in the past ten years.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A low-temperature modified atmosphere coating film preservation method capable of prolonging the shelf life of eggs, comprising the following steps:

[0019] S10. Wash eggs: select fresh, uncracked eggs, and clean the feces and other pollutants on the shell of the eggs;

[0020] S11. Soak eggs: Put the cleaned eggs into a container and add them to 30°C normal saline for soaking. After soaking for 5 minutes, add calcium chloride to the soaking solution and continue soaking for 2 minutes. Take out the eggs and dry them for later use;

[0021] S12. Frozen eggs: put the soaked eggs into a quenching machine for vacuum freezing storage, quench to 0°C and keep for 3 minutes;

[0022] S13. Vacuum placement: put the frozen eggs into a vacuum box and fill them with argon, carbon dioxide and nitrogen gas mixture, and place them for 18 hours;

[0023] S14, fresh-keeping treatment: the eggs placed in vacuum in step S13 are transferred to a pure nitrogen environment, and the fresh-k...

Embodiment 2

[0030] A low-temperature modified atmosphere coating film preservation method capable of prolonging the shelf life of eggs, comprising the following steps:

[0031] S10. Wash eggs: select fresh, uncracked eggs, and clean the feces and other pollutants on the shell of the eggs;

[0032] S11. Soak eggs: Put the cleaned eggs into a container and add them to 40°C normal saline for soaking. After soaking for 5 minutes, add calcium chloride to the soaking solution, continue soaking for 4 minutes, remove the eggs and dry them for later use;

[0033] S12. Frozen eggs: put the soaked eggs into a quenching machine for vacuum freezing storage, quench to 5°C and keep for 5 minutes;

[0034] S13. Vacuum placement: put the frozen eggs into a vacuum box and fill them with argon, carbon dioxide and nitrogen gas mixture, and place them for 24 hours;

[0035] S14, fresh-keeping treatment: the eggs placed in vacuum in step S13 are transferred to a pure nitrogen environment, and the fresh-keepin...

Embodiment 3

[0042] A low-temperature modified atmosphere coating film preservation method capable of prolonging the shelf life of eggs, comprising the following steps:

[0043] S10. Wash eggs: select fresh, uncracked eggs, and clean the feces and other pollutants on the shell of the eggs;

[0044] S11. Soak eggs: Put the cleaned eggs into a container and add them to 35°C normal saline for soaking. After soaking for 5 minutes, add calcium chloride to the soaking solution, continue soaking for 3 minutes, remove the eggs and dry them in the sun for later use;

[0045] S12. Frozen eggs: put the soaked eggs into a quenching machine for vacuum freezing storage, quench to 3°C and keep for 4 minutes;

[0046] S13. Vacuum placement: put the frozen eggs into a vacuum box and fill them with argon, carbon dioxide, and nitrogen gas mixture, and place them for 20 hours;

[0047] S14, fresh-keeping treatment: the eggs placed in vacuum in step S13 are transferred to a pure nitrogen environment, and the fr...

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PUM

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Abstract

The invention provides a low-temperature air-conditioning coating preservation method for prolonging storage life of eggs. The method comprises the following steps: S10) cleaning the eggs; S11) soaking the eggs; S12) freezing the eggs; S13) placing in vacuum; S14) performing refreshing treatment; S15) storing the eggs. According to the invention, the low-temperature air-conditioning coating preservation method is adopted for performing refreshing treatment on the eggs; a layer of preservative film is coated on the egg surface and the film can restrain the enzymatic activity of the eggs and slow down the life attenuation process, so that the purposes of keeping the eggs fresh and maintaining the quality can be achieved; the characteristics, such as, anti-bacteria effect, antioxidant effect and antiviral effect, of the extracted compound are utilized to prolong the shelf life of the eggs, so that the social cost can be saved; the preservative coated on the egg surface is under colorless transparent state after the preservative is dried; the method has the advantages of safety and low cost.

Description

technical field [0001] The invention relates to the technical field of food preservation, in particular to a low-temperature modified atmosphere coating film preservation method capable of prolonging the preservation period of eggs. Background technique [0002] Eggs have high nutritional value. They not only contain essential nutrients such as protein, fat, minerals and vitamins, but also contain lecithin, cephalin and neurophospholipids, which are indispensable for the human brain and nervous system, especially protein. The content is higher, and it is easy to digest and absorb, and can be used by the human body almost completely, so it can be called high-quality food. But eggs are perishable food, and the spoilage of eggs is closely related to factors such as the condition of the eggs themselves, the type and quantity of bacteria, and the environment in which the eggs are located. Whether the microorganisms contaminated inside the egg can grow depends on environmental co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23B5/18A23B5/04A23B5/10A23B5/00
CPCA23B5/18A23B5/00A23B5/04A23B5/10
Inventor 不公告发明人
Owner FOSHAN HENGNAN MEDICAL TECH CO LTD
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