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Controlled atmosphere fresh-keeping bag and sterilized controlled atmosphere fresh-keeping method

A modified atmosphere fresh-keeping and fresh-keeping bag technology, which is applied in the fields of fruit and vegetable preservation and fresh flowers, can solve the problems of deadly bacteria reproduction, large investment, microbial infection, etc., and achieve the effect of thorough disinfection, less investment and easy operation

Active Publication Date: 2008-09-24
钟楚杰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When fruits and vegetables are in sealed packaging, the effect of using ozone fresh-keeping machines in cold storage is not ideal
With aseptic packaging technology, fruits and vegetables, fresh cut flowers, and packaging materials must first be sterilized with ozone or other disinfectants, and then sealed in an aseptic workshop sterilized with ozone or other disinfectants; the former is time-consuming. The latter is labor-intensive, and the latter is time-consuming, and the two methods cannot be well combined with air-conditioning and other fresh-keeping technologies, which seriously affects the promotion and application of ozone disinfection.
Composite modified atmosphere fresh-keeping packaging technology, because fruits and vegetables and fresh cut flowers will still undergo respiration when they enter the packaging, the original design gas composition will inevitably change after a certain period of time and affect the storage effect. It will inevitably affect the storage effect, and vacuum packaging is conducive to the reproduction of deadly bacteria

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Embodiment 1 Modified atmosphere fresh-keeping bag

[0031] A modified atmosphere fresh-keeping bag, which is made of polyethylene as a base, mixed with calcium carbonate, p-tolualdehyde sorbitol, nano-silver and modified starch, and then blown, wherein polyethylene accounts for 64.5% of the total mass of the mixture %, calcium carbonate accounts for 4% of the total mass of the mixture, p-tolualdehyde sorbitol accounts for 0.5% of the total mass of the mixture, nano silver accounts for 1% of the total mass of the mixture, and modified starch accounts for 30% of the total mass of the mixture.

Embodiment 2

[0032] Embodiment 2 Modified atmosphere fresh-keeping bag

[0033] A modified atmosphere fresh-keeping bag is based on polyethylene, adding talcum powder, Dagu stone, zeolite, modified starch, nano-titanium dioxide, sorbitan monopalmitate, sorbitan monostearate, ethylene Methyldimethoxysilane, cobalt blue and bis(3.4-dimethylbenzylidene) sorbitol are mixed and blown, wherein polyethylene accounts for 63.5% of the total mass of the mixture, talcum powder, large grain Stone and zeolite each account for 2.5% of the total mass of the mixture, sorbitan monopalmitate and sorbitan monostearate each account for 0.5% of the total mass of the mixture, and vinylmethyldimethoxysilane accounts for 0.5% of the total mass of the mixture. 1% of the mass, cobalt blue accounts for 0.5% of the total mass of the mixture, nano-titanium dioxide accounts for 1% of the total mass of the mixture, bis(3.4-dimethylbenzylidene) sorbitol accounts for 0.5%, and modified starch accounts for 25%.

Embodiment 3

[0034] Embodiment 3 Modified atmosphere fresh-keeping bag

[0035] A modified atmosphere fresh-keeping bag, which is based on polyethylene and is mixed with nanometer zinc dioxide, cinnamaldehyde, bis(3.4-dimethylbenzylidene) sorbitol, silicon dioxide, diatomaceous earth, and modified starch , blown, wherein polyethylene accounted for 66.5% of the total mass of the mixture, nano-zinc dioxide accounted for 1.0%, cinnamaldehyde accounted for 0.5%, silicon dioxide accounted for 1.5% of the total mass of the mixture, diatomaceous earth accounted for the total mass of the mixture 5. Bis(3.4-dimethylbenzylidene) sorbitol accounts for 0.5%, modified starch accounts for 25%,

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PUM

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Abstract

The invention provides an air-adjusting fresh keeping bag and a sterile air-adjusting fresh keeping method. The air-adjusting fresh keeping bag takes tasteless, odourlessness, innocuous resin material as a substrate which is then added and mixed with functional materials and then blown into a homogenous humidity keeping air-adjusting fresh keeping bag enabling the ozone to pass. The sterile air-adjusting fresh keeping method of the invention includes the procedures that: the air-adjusting fresh keeping bag is placed in an ordinary temperature adjustable plant according to the package weight after fruits and vegetables as well as flowers are pretreated; the air-adjusting fresh keeping bag is placed in a ventilated plastic circulating container after being sealed and packaged and then is sent into a sealing house for the ozonic sterilization; the fruits, the vegetables and freshly cut flowers are stored into a refrigerator after the sterilization according to the temperatures required by the storage of the fruits, the vegetables and the freshly cut flowers or is placed into a refrigerator car cabinet for the transportation. The sterile air-adjusting fresh keeping method of the invention is small in investment and convenient in operation and combines the ozonic sterilization and the air-adjusting fresh keeping, the sterilization is thorough and the fresh keeping effect is long-lasting.

Description

technical field [0001] The invention belongs to the technical field of fresh-keeping of flowers, fruits and vegetables, and in particular relates to a modified atmosphere fresh-keeping bag for packing fruits and vegetables and fresh-cut flowers and an aseptic modified-atmosphere fresh-keeping method thereof. Background technique [0002] Fruits and vegetables and fresh cut flowers used for preservation are isolated but still living organisms, and the metabolism in the body is still in progress. Due to the lack of supply of various nutrients, the original color, flavor and nutrients will change, resulting in The quality declines, and at the same time, due to its own aging, it gradually loses its disease resistance and eventually rots and deteriorates. For this reason, people adopt various measures to keep fruits and vegetables, fresh cut flowers in a slow and normal life activity state, delay aging and prolong the storage period. [0003] At present, there are many fresh-kee...

Claims

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Application Information

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IPC IPC(8): B65D30/02B65D81/20B65D85/34B65D85/50B65B51/00B65B55/02C08L23/06C08L3/04C08L5/08C08K13/02C08K3/26C08K5/07C08K3/08
CPCY02A40/90Y02W90/10
Inventor 钟楚杰
Owner 钟楚杰
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