CN104326170B - A kind of photocatalysis controlled atmospheric packing technology - Google Patents
A kind of photocatalysis controlled atmospheric packing technology Download PDFInfo
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- CN104326170B CN104326170B CN201410439303.3A CN201410439303A CN104326170B CN 104326170 B CN104326170 B CN 104326170B CN 201410439303 A CN201410439303 A CN 201410439303A CN 104326170 B CN104326170 B CN 104326170B
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- photocatalysis
- food
- bag
- controlled atmospheric
- atmospheric packing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/90—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in food processing or handling, e.g. food conservation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
- Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics
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- Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
- Packages (AREA)
- General Preparation And Processing Of Foods (AREA)
Abstract
The invention discloses a kind of photocatalysis controlled atmospheric packing technology, this technology is with ethanol as substrate, by under the effect of ultraviolet light and catalyst, make the oxygen generation light-catalyzed reaction in ethanol and packaging bag (container), generate carbon dioxide and acid, and make the oxygen content in packaging bag (container) reduce, can effectively suppress growth of microorganism and food because of oxidation cause rotten, and then the stability of food storage can be improved and extend the preservation term of food.It addition, photocatalysis bag of the present invention is all made up of food grade materials, not resulting in any danger after accidentally eating by mistake, safety is high.The present invention can be not only used for the controlled atmospheric packing of meat and varieties of food items packaging bag (container) it can also be used to the controlled atmospheric packing of food in the Cold Chain Logistics systems such as freezer.
Description
Technical field
The present invention relates to a kind of controlled atmospheric packing technology, particularly relate to a kind of photocatalysis controlled atmospheric packing technology,
Belong to food packaging applications.
Background technology
The Main Function of packaging for foodstuff is to ensure that in the food process of circulation from factory to consumer, from
The foeign element such as biology, chemistry, physics is disturbed, and keeps food matter in Long-term Storage and transportation
Amount does not occurs or less changes, it is ensured that Safety of Food Quality.But the nutritive peculiarity that food has
Making it be encroached on by microorganism unavoidably in storage, this causes the food can not long term storage
Major reason.
Cause reason that microorganism grows in food except sterilization thoroughly in addition to, also with the water of food
In point activity, surrounding, the content of oxygen has substantial connection.Wherein oxygen is possible not only to promote micro-life
The growth of thing, and also can result in food the oxidation of fat, the destruction of vitamin and amino acid whose
Chemical change, ultimately results in nutritive value of food and storage-stable reduces, and oxygen can also add in addition
Acute food brown stain.Therefore, reduce in the oxygen content in packaging for foodstuff, the bag that changes package (container)
Gas componant, microbial activity in food can be suppressed and prevent the loss of food nutrient composition,
And then play preservation term and the storage-stable extending food.
In packaging for foodstuff, conventional deoxidation method is oxidizable with iron powder, ammonium chloride, zinc, aluminum etc.
Composition and the oxygen generation chemical reaction in packaging bag (container), to play the effect of deoxidation.But
This method of deoxidation has the participation of metallic compound, is by chemical method deoxidation, product mostly
Also it is the compound that human body is had certain injury, therefore must mark " the most edible on deoxidizer packing bag
With " printed words, but the most illiterate child or adult eat by mistake or abuse etc. causes
Potential danger.It is therefore desirable to develop a kind of new deoxidation air conditioning technology, to solve above-mentioned potential safety hazard.
Summary of the invention
It is an object of the invention to provide a kind of photocatalysis controlled atmospheric packing technology, this packing technique both can be protected
The stability of card food storage, can improve again the safety of controlled atmospheric packing.
For reaching above-mentioned purpose, the photocatalysis controlled atmospheric packing technology that the present invention provides comprises the steps:
(1) preparation of photocatalysis bag
A. the mixing of catalyst and carrier: be taken as into catalyst food-level titanium dioxide powder 0.1～
0.5g and the polysaccharide 80～100g as carrier, be mixed uniformly；
B. ethanol solidification: add in the mixture of catalyst and carrier and account for mixture quality 35～45%
(m/m) food-grade ethanol, quickly mediates, and makes ethanol be formed all with the mixture of catalyst and carrier
Even kneading body；
C. pelletize: be graininess or broken section of shape by above-mentioned kneading body machine-shaping, with 6～8 after drying
Mesh sieve sieves, and collects siftage and i.e. obtains photocatalytic particle；
D. packaging: above-mentioned photocatalytic particle is loaded by metering the transparent plastic which is provided with air-vent
In Dai, preparing photocatalysis bag, photocatalysis bag, if used the most immediately, should be placed in freezing (-18 at lucifuge
Below DEG C)；
(2) photocatalysis bag and the packaging of food: food and photocatalysis bag are loaded at ambient pressure the most saturating
In the composite membrane food pack of light or partial light permeability and seal, photocatalysis bag is positioned at the printing opacity of packaging bag
Place, for light activated food, can use coating design to make it light tight by the thin film at food position；
(3) photocatalysis controlled atmosphere: use 20～50W uviol lamps, irradiates photocatalysis bag through outer packaging bag
30～70min, uviol lamp is 3～7mm with the distance of packaging bag.
Further, described in step (1) a, polysaccharide is made up of the raw material of following mass percent: starch
80～90%, xanthan gum 5～10%, Konjac glucomannan 5～10%.
Further, described in step (1) a, the purity of food-grade ethanol is not less than 95%.
Further, metering described in step (1) d is for every bag 20～50g.
Further, step (2) joins a photocatalysis bag by every 150～300g food and packs,
Depending on the size of photocatalysis bag is according to the shelf-life of food.
The present invention utilizes ethanol the feature of oxidation reaction to occur under catalyst and illumination condition, at food
After packaging bag (container) sealing, use luminescence method, promote oxidation of ethanol to consume packaging bag (container)
In oxygen, simultaneously by generate gaseous compound, the gas group in the bag that changes package (container)
Become, and then effectively suppression growth of microorganism and food, because of going bad that oxidation causes, improve food storage
Stability and the preservation term of prolongation food.It addition, the photocatalysis bag of the present invention all uses food stage former
Material is made, and does not results in any danger after eating by mistake, and compared with existing deoxidizer, safety is high.
The present invention can be not only used for meat and the controlled atmospheric packing of varieties of food items packaging bag (container), it is also possible to
The controlled atmospheric packing of food in the Cold Chain Logistics systems such as freezer.
Detailed description of the invention
In order to be more fully understood that the present invention, below in conjunction with specific embodiment, the present invention is made the most in detail
Describe, but protection scope of the present invention is not limited to this.
The controlled atmospheric packing of embodiment 1 dried pork
(1) preparation of photocatalysis bag
A. catalyst and the mixing of carrier: be taken as the food-level titanium dioxide powder 0.2g into catalyst
With the polysaccharide mixture 80g as carrier, being used V-Mixer mix homogeneously, described polysaccharide mixes
Compound is made up of the raw material of following mass percent: starch 83%, xanthan gum 8%, Konjac glucomannan 9%；
B. ethanol solidification: add in the mixture of catalyst and carrier and account for mixture quality 39%
(m/m) food-grade ethanol (purity 95%), quickly mediates, and makes ethanol and catalyst and carrier
Mixture is formed uniformly mediates body；
C. pelletize: by above-mentioned kneading body through oodle maker tabletting, cutting, is shaped to width and height is 1.5mm
Strip, roll over broken after drying, with 8 mesh sieves screening, collect siftage i.e. obtain photocatalytic particle；
D. packaging: above-mentioned photocatalytic particle is loaded by every bag of 20g and which is provided with air-vent (diameter
In transparent plastic bag 0.1mm), preparing photocatalysis bag, photocatalysis bag, if used the most immediately, should be placed in
-18 DEG C of Storage in refrigerator；
(2) photocatalysis bag and the packaging of dried pork: by dried pork 200g and a photocatalysis bag (20g)
Load the most together in the composite membrane food pack of printing opacity and seal；
(3) photocatalysis controlled atmosphere: use 20W uviol lamp, irradiates photocatalysis bag 40min through outer packaging bag,
Uviol lamp is 4mm with the distance of packaging bag.
The controlled atmospheric packing of the cold fresh beef of embodiment 2
A. the mixing of catalyst and carrier: be taken as into catalyst food-level titanium dioxide powder 0.4g and
As the polysaccharide mixture 95g of carrier, being used hands mix homogeneously, described polysaccharide mixture is by following matter
The raw material composition of amount percentage ratio: starch 90%, xanthan gum 5%, Konjac glucomannan 5%；
B. ethanol solidification: add in the mixture of catalyst and carrier and account for mixture quality 43%
(m/m) food-grade ethanol (purity 95%), quickly mediates, and makes ethanol and catalyst and carrier
Mixture is formed uniformly mediates body；
C. pelletize: by above-mentioned kneading body Squeezinggranulator pelletize, particle diameter between 2.0～3.4mm,
Cross 6 mesh sieves after drying, collect siftage and i.e. obtain photocatalytic particle；
D. packaging: above-mentioned photocatalytic particle is loaded by every bag of 30g and which is provided with air-vent (diameter
In transparent plastic bag 0.25mm), preparing photocatalysis bag, photocatalysis bag, if used the most immediately, should be put
In-18 DEG C of Storage in refrigerator；
(2) photocatalysis bag and the packaging of cold fresh beef: by cold fresh beef 500g and a photocatalysis bag
(30g) load the most together in the composite membrane food pack of partial light permeability and seal, Qi Zhongguang
Catalysis bag is placed in packaging bag side, and this part packaging bag is transparent, and coating is passed through at other position of packaging bag
Make it opaque；
(3) photocatalysis controlled atmosphere: use 40W uviol lamp, irradiates photocatalysis bag 30min through outer packaging bag,
Uviol lamp is 6mm with the distance of packaging bag.
Claims (5)
1. a photocatalysis controlled atmospheric packing method, comprises the steps:
(1) preparation of photocatalysis bag
A. the mixing of catalyst and carrier: be taken as into catalyst food-level titanium dioxide powder 0.1～
0.5g and the polysaccharide 80～100g as carrier, be mixed uniformly；
B. ethanol solidification: add in the mixture of catalyst and carrier and account for mixture quality 35～45%
Food-grade ethanol, quickly mediate, make the mixture of ethanol and catalyst and carrier form uniformly kneading
Body；
C. pelletize: be graininess or broken section of shape by above-mentioned kneading body machine-shaping, with 6～8 after drying
Mesh sieve sieves, and collects siftage and i.e. obtains photocatalytic particle；
D. packaging: above-mentioned photocatalytic particle is loaded by metering the transparent plastic which is provided with air-vent
In Dai, prepare photocatalysis bag；
(2) photocatalysis bag and the packaging of food: food and photocatalysis bag are loaded at ambient pressure the most saturating
In the composite membrane food pack of light or partial light permeability and seal, photocatalysis bag is positioned at the printing opacity of packaging bag
Place；
(3) photocatalysis controlled atmosphere: use 20～50W uviol lamps, irradiates photocatalysis bag through outer packaging bag
30～70min, uviol lamp is 3～7mm with the distance of packaging bag.
Photocatalysis controlled atmospheric packing method the most according to claim 1, it is characterised in that: step (1) a
Described in polysaccharide be made up of the raw material of following mass percent: starch 80～90%, xanthan gum 5～10%,
Konjac glucomannan 5～10%.
Photocatalysis controlled atmospheric packing method the most according to claim 1, it is characterised in that: step (1) b
Described in the purity of food-grade ethanol be not less than 95%.
Photocatalysis controlled atmospheric packing method the most according to claim 1, it is characterised in that: step (1) d
Described in metering for every bag 20～50g.
Photocatalysis controlled atmospheric packing method the most according to claim 1, it is characterised in that: step (2)
In join a photocatalysis bag by every 150～300g food and pack, the size of photocatalysis bag is according to food
Depending on the shelf-life of product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410439303.3A CN104326170B (en) | 2014-08-29 | 2014-08-29 | A kind of photocatalysis controlled atmospheric packing technology |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410439303.3A CN104326170B (en) | 2014-08-29 | 2014-08-29 | A kind of photocatalysis controlled atmospheric packing technology |
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| Publication Number | Publication Date |
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| CN104326170A CN104326170A (en) | 2015-02-04 |
| CN104326170B true CN104326170B (en) | 2016-08-24 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10212203A (en) * | 1997-01-30 | 1998-08-11 | Zeon Kasei Co Ltd | Photocatalytic freshness-keeping apparatus |
| CN1559238A (en) * | 2004-02-15 | 2005-01-05 | 云南大学 | Antistalling bactericide for vegetables and fruits prepn. method and use thereof |
| CN102550651A (en) * | 2010-12-30 | 2012-07-11 | 佐贺光触媒环保科技(大连)有限公司 | Photocatalytic fresh fruit storage reservoir capable of decomposing ethylene |
| CN102580783A (en) * | 2012-01-09 | 2012-07-18 | 兰州交通大学 | Method for preparing TiO2/PS/Fe3O4 magnetic nanoparticle photocatalyst |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110123694A1 (en) * | 2009-11-24 | 2011-05-26 | Hussmann Corporation | Table with ethylene scrubber |
-
2014
- 2014-08-29 CN CN201410439303.3A patent/CN104326170B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10212203A (en) * | 1997-01-30 | 1998-08-11 | Zeon Kasei Co Ltd | Photocatalytic freshness-keeping apparatus |
| CN1559238A (en) * | 2004-02-15 | 2005-01-05 | 云南大学 | Antistalling bactericide for vegetables and fruits prepn. method and use thereof |
| CN1270614C (en) * | 2004-02-15 | 2006-08-23 | 云南大学 | Antistalling bactericide for vegetables and fruits prepn. method and use thereof |
| CN102550651A (en) * | 2010-12-30 | 2012-07-11 | 佐贺光触媒环保科技(大连)有限公司 | Photocatalytic fresh fruit storage reservoir capable of decomposing ethylene |
| CN102580783A (en) * | 2012-01-09 | 2012-07-18 | 兰州交通大学 | Method for preparing TiO2/PS/Fe3O4 magnetic nanoparticle photocatalyst |
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| Publication number | Publication date |
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| CN104326170A (en) | 2015-02-04 |
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