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Low-temperature preservation method of modified atmosphere packaging type peanut kernel

A fresh-keeping method and modified atmosphere packaging technology, which are applied in the fields of edible seed preservation, food preservation, and seeds preservation by freezing/cooling, etc., can solve the problems of increasing cost, easy damage of packaging containers, etc. The effect of reducing fungal activity, prolonging stagnation and exponential growth phases

Inactive Publication Date: 2014-07-02
TIANJIN TAIYUAN INDAL GAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the method of vacuumizing the container is used for storage, the cost will be increased, and the packaging container will also become easily damaged

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] a. Put the peanuts into the packaging bag;

[0012] b. Fill the packaging bag with a mixture of 10% carbon dioxide and 90% nitrogen by volume, and seal the packaging bag;

[0013] c. Store the packaging bag at 25°C.

[0014] The shelf life of peanuts stored according to the above steps can be extended to 50 weeks.

Embodiment 2

[0016] a. Put the peanuts into the packaging bag;

[0017] b. Fill the packaging bag with a mixed gas of 5% carbon dioxide and 95% nitrogen by volume percentage, and seal the packaging bag;

[0018] c. Store the packaging bag in an environment of 20°C.

[0019] The shelf life of peanuts stored according to the above steps can be extended to 51 weeks.

Embodiment 3

[0021] a. Put the peanuts into the packaging bag;

[0022] b. Fill the packaging bag with a mixed gas whose volume percentage is 100% nitrogen, and seal the packaging bag;

[0023] c. Store the packaging bag at 22°C.

[0024] The shelf life of peanuts stored according to the above steps can be extended to 52 weeks.

[0025] Through the above three examples, it is illustrated that the shelf life of peanuts can be extended from 12 weeks to about 52 weeks by using a mixture of carbon dioxide and nitrogen in an appropriate ratio instead of ordinary air, and with appropriate dosage and temperature.

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PUM

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Abstract

The invention provides a low-temperature preservation method of modified atmosphere packaging type peanut kernel. The method is characterized by comprising the following steps: putting peanut kernels into a packaging bag, filling the packaging bag with mixture gas without oxygen, sealing the packaging bag, and putting the packaging bag in an environment for preservation at 20-25 DEG C. The method has the beneficial effects that as carbon dioxide is adopted to inhibit the growth and the propagation of fungi, the fungus activity can be effectively prevented and reduced, the growth stagnation period and the index growth period of the fungi are prolonged, the functions of corrosion prevention and mould prevention are achieved, and the anti-corrosion period of the peanut kernels is prolonged; as nitrogen which is not subjected to chemical reaction with food and is not absorbed by the food is filled, the growth and the reproduction of the fungi are inhibited; as the mixture gas instead of air is used, the peanut kernels are prevented from corrosion and decay because of the oxygen. As part of the carbon dioxide can be absorbed by fat and water in the peanut kernels, and a proper amount of nitrogen is filled, a packaging container is kept swelling.

Description

technical field [0001] The invention belongs to the technical field of packaging and preservation, and in particular relates to a low-temperature preservation method for modified atmosphere packaging peanuts. Background technique [0002] Peanuts are a popular food, whether as snacks or cooking materials, they are eaten in large quantities. Oxidation and spoilage are the main reasons for the deterioration of peanuts. The shelf life of peanuts generally depends on the oxygen content in the packaging container. Even a small amount of oxygen may cause peanuts to spoil. People generally put peanuts in packaging containers and store them at room temperature. The shelf life is generally about 12 weeks. If the container is preserved by vacuumizing, the cost will be increased, and the packaging container will be easily damaged. Contents of the invention [0003] In order to solve the above-mentioned technical problems, the present invention provides a method for low-temperature ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23B9/20A23B9/10
Inventor 原东风
Owner TIANJIN TAIYUAN INDAL GAS
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