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Device for fresh-keeping packaging of bananas

A technology for fresh-keeping packaging and bananas, applied in packaging, biological packaging, packaged food, etc., can solve the problems of low ethylene gas permeability, and achieve the effects of reducing content, extending shelf life and delaying aging.

Inactive Publication Date: 2011-04-27
NAT ENG AN TECH RES CENT FOR PRESERVATION OF AGRI PROD TIANJIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the permeability of conventional films to ethylene gas is low. Therefore, the ethylene gas in conventional packaging films accumulates over time, and the concentration is getting higher and higher, which will play a positive role in promoting the aging of bananas.

Method used

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  • Device for fresh-keeping packaging of bananas
  • Device for fresh-keeping packaging of bananas
  • Device for fresh-keeping packaging of bananas

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Get 10kg of seven-ripe bananas harvested in good time without injury, put them into the banana fresh-keeping packaging device described herein after sterilization, tie the fresh-keeping bags, and seal the outer packing carton with adhesive tape. Storage at 15°C. Use the PBI5500 portable infrared gas detector to measure the gas index once a day, and observe the time when the gas balance is reached and the concentration of carbon dioxide and oxygen gas. It can be seen from the observed values ​​that the gas concentration in the bag reaches balance from the fourth day, and the gas indicators during the balance are oxygen: 2-3%, carbon dioxide 4-5%.

Embodiment 2

[0021] Also take 10kg of bananas with the same conditions as in Example 1, pack them in the same way and store them in the warehouse at 10°C, and measure the gas index once a day. It can be seen from the observed values ​​that the gas concentration in the packaging bag reaches balance from the 6th day, and the gas indicators during the balance are oxygen: 3-4%, carbon dioxide 4-5%.

Embodiment 3

[0023] Also take 10kg of bananas identical to those in Example 1, pack them in the same way and store them in the warehouse at 20°C, and measure the gas index every two days. It can be seen from the observed value that the gas concentration in the bag reaches equilibrium from the third day, and the gas indicators during the equilibrium are oxygen: 1-2%, carbon dioxide 4-5%.

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Abstract

The invention relates to a device for fresh-keeping packaging of bananas. The device consists of an outer packaging box and an inner packaging film. The packaging box is generally made of a cardboard with air vents on the walls, and an independent gas buffer environment is formed between the packaging film and the outside of the packaging box and enables air exchange between the outside and the inside of the packaging film. The packaging film material used by the device is poly(4-methyl-1-pentene) film containing an ethylene absorption-decomposition agent. The film has high gas-and-vapor transmission rate, which is about 10 times of that of an ordinary PE film, and the film is capable of absorbing and decomposing the ethylene gas produced in the banana metabolism. The content control of the carbon dioxide and the ethylene greatly delays the respiratory peak of the bananas, thus achieving the purpose of fresh-keeping.

Description

technical field [0001] The invention belongs to the fields of food packaging and fresh-keeping of fruits and vegetables, in particular to a banana fresh-keeping packaging device. technical background [0002] Controlled atmosphere storage is one of the main technologies for fresh-keeping of fruits and vegetables. Its basic principle is: use specific facilities or specific packaging materials to provide a relatively low-oxygen and high-carbon-dioxide environment for harvested fruits and vegetables, thereby inhibiting the respiration of fruits and vegetables and the growth of some microorganisms, and prolonging the freshness. Expect. There are two ways of controlled atmosphere storage including controlled atmosphere storage and spontaneous modified atmosphere packaging. The construction cost of controlled atmosphere storage is relatively high, and it is difficult to popularize and implement it under the current agricultural economic level in our country. Spontaneous modified...

Claims

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Application Information

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IPC IPC(8): B65D85/34B65D77/02B65D85/50B65D81/24B65D25/04A23B7/148
Inventor 李家政毕大鹏
Owner NAT ENG AN TECH RES CENT FOR PRESERVATION OF AGRI PROD TIANJIN
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