CN107241849A - A kind of low-temperature plasma device fresh-keeping for food sterilization - Google Patents
A kind of low-temperature plasma device fresh-keeping for food sterilization Download PDFInfo
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- CN107241849A CN107241849A CN201710494643.XA CN201710494643A CN107241849A CN 107241849 A CN107241849 A CN 107241849A CN 201710494643 A CN201710494643 A CN 201710494643A CN 107241849 A CN107241849 A CN 107241849A
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- food
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- producing apparatus
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- 235000013305 food Nutrition 0.000 title claims abstract description 42
- 238000004659 sterilization and disinfection Methods 0.000 title claims abstract description 21
- 230000001954 sterilising effect Effects 0.000 title claims abstract description 20
- 239000007921 spray Substances 0.000 claims abstract description 10
- 239000002184 metal Substances 0.000 claims abstract description 4
- 229910052751 metal Inorganic materials 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 5
- 239000010935 stainless steel Substances 0.000 claims description 5
- 238000009827 uniform distribution Methods 0.000 claims description 3
- 239000011800 void material Substances 0.000 claims description 2
- 244000005700 microbiome Species 0.000 abstract description 7
- 102000004190 Enzymes Human genes 0.000 abstract description 6
- 108090000790 Enzymes Proteins 0.000 abstract description 6
- 238000006243 chemical reaction Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 5
- 238000000354 decomposition reaction Methods 0.000 abstract description 4
- 230000000813 microbial effect Effects 0.000 abstract description 4
- 239000000645 desinfectant Substances 0.000 abstract description 3
- 238000007599 discharging Methods 0.000 abstract description 3
- 238000006911 enzymatic reaction Methods 0.000 abstract description 3
- 230000002401 inhibitory effect Effects 0.000 abstract description 3
- 239000005416 organic matter Substances 0.000 abstract description 3
- 238000003466 welding Methods 0.000 abstract 1
- 150000002500 ions Chemical class 0.000 description 5
- 241000894007 species Species 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 150000003254 radicals Chemical class 0.000 description 3
- 235000013311 vegetables Nutrition 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 230000001580 bacterial effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000009395 breeding Methods 0.000 description 2
- 230000001488 breeding effect Effects 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 235000021022 fresh fruits Nutrition 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 235000013372 meat Nutrition 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 235000005911 diet Nutrition 0.000 description 1
- 230000037213 diet Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 235000019688 fish Nutrition 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 235000012055 fruits and vegetables Nutrition 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 235000012054 meals Nutrition 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 244000000010 microbial pathogen Species 0.000 description 1
- 230000000050 nutritive effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 235000021067 refined food Nutrition 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 235000012976 tarts Nutrition 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 239000003053 toxin Substances 0.000 description 1
- 231100000765 toxin Toxicity 0.000 description 1
- 238000004383 yellowing Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H1/00—Generating plasma; Handling plasma
- H05H1/24—Generating plasma
- H05H1/2406—Generating plasma using dielectric barrier discharges, i.e. with a dielectric interposed between the electrodes
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
- A23L3/26—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by irradiation without heating
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Health & Medical Sciences (AREA)
- Nutrition Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
Abstract
A kind of low-temperature plasma device fresh-keeping for food sterilization, including place supporting plate, plasma producing apparatus, shell, door, the circuit control module of food.Supporting plate is connected with plasma producing apparatus by dielectric, the spray point welding of plasma producing apparatus is on a metal plate, connected between metallic plate and ground electrode by dielectric, spray point is arranged on the position of ground electrode center of circular hole, metallic plate is connected with connecing the high-pressure side of high voltage power supply, ground electrode ground connection.The device produces plasma by special discharging structure, the flowing of air is driven using ion wind, the microbial reaction of some active components and foodstuff surface in plasma, kill microorganism, some enzyme reactions of active component and food therein, the activity of inhibitory enzyme, slow down the decomposition rate of organic matter, food and daily apparatus are carried out disinfection, and the shelf-life of food can be extended, disinfectant fresh-keeping under cryogenic to food is realized.
Description
Technical field
The present invention relates to food sterilization technical field of preservation of fresh, more particularly to it is a kind of for food sterilization, fresh-keeping be integrated
Low-temperature plasma device.
Background technology
During food storage, because ambient influnence or storage time are long, some food occur rotten or rotten.
Causing the main cause of food spoilage has 3 aspects：1st, microorganism decomposition：There is microorganism in environment everywhere, food is being produced, added
During work, transport, storage, easy microbial contamination, as long as proper temperature, microorganism will raised growth breeding, decomposition
After protein in nutriment in food, food is destroyed, it can stink and tart flavour；2nd, the effect of enzyme：In various enzymes
In the presence of, the nutriment of food is broken down into multi-products, and meal spoils and turn sour, fruit rots, and is exactly that carbohydrate is divided by enzyme
Caused by solution after fermentation；3rd, the chemical reaction of food：Grease is easily oxidized, and a series of chemical reaction is produced, after oxidation
Grease have strange taste, such as fat meat can be by white yellowing.In the factors of food spoilage, the pollution of microorganism plays leading make
With.In general, fish, meat, fruit or vegetable type food, the most obvious with bacterial action, grain, Flour product are then shown the most with mould effect
Write.Not only outward appearance changes rotten food, loses the color of original food, and nutritive value can also decline, and can also contain
There is corresponding toxin to be detrimental to health.
It is always the health diet method extensively got consumer reception to eat fresh fruit and vegetables raw, therefore, fresh fruit and
The fresh-keeping and food-safety problem of vegetables is constantly subjected to the extensive concern of people.The initiation of numerous food product safety problem, be mostly
Caused by eating the fruits and vegetables that surface is polluted by pathogenic microorganisms by mistake.Traditional fresh-keeping and method for disinfection has titanium dioxide stove drying
Steam, ultraviolet etc., but these method generally existing costs are high, chemical residue, the shortcomings of bactericidal effect is not ideal enough.
With the progress and the improvement of people's living standards of society, there is higher requirement with fresh-keeping to sterilizing for food,
Current sterilizing equipment decontaminating apparatus and freshness preserving equipment are separation, and freshness preserving equipment mainly has refrigerator to serve as, and the temperature in refrigerator is general in 3-10
Degree, this temperature is the preference temperature of bacterial growth and breeding, therefore fridge freshness retaining is also generally all within couple of days, while ice
Peculiar smell is often produced in case.
The content of the invention
It is above-mentioned to solve it is an object of the invention to provide a kind of low-temperature plasma device fresh-keeping for food sterilization
The problem of being proposed in background technology there is provided one kind without compressor and freon, energy-conserving and environment-protective, sterilization and it is fresh-keeping be integrated it is new
Type equipment, not only with sterilization of high efficiency, processing time is short, the low feature for the treatment of temperature, additionally it is possible to keep processed food
Freshness and quality can carry out disinfection to food and daily apparatus, and can extend the shelf-life of food, go to eliminate the unusual smell, the life
Production. art is simple, with low cost, it is easy to popularization and popularization.
To reach above-mentioned purpose, the present invention is adopted the following technical scheme that：It is a kind of for fresh-keeping low temperature of food sterilization etc. from
Daughter device, including a cuboid housing, are provided with switch gate in hull outside, are provided with the inside of switch gate circuit control mould
The horizontal shelf for contain things no less than two layers is provided with block, housing, horizontal shelf is porous metallic plate, and it is empty
Gap ratio is more than 80%；Plasma producing apparatus is located at the just lower of horizontal shelf and is just connected by dielectric with horizontal shelf
Connect, plasma producing apparatus upper bottom surface is that ground electrode is connected by the metallic plate of dielectric and bottom surface, and ground electrode is used
Stainless steel material, metallic plate is connected with the high-pressure side of high voltage power supply, ground electrode ground connection；The ground of plasma producing apparatus upper bottom surface
Array circular hole uniformly is offered on electrode, plasma producing apparatus inside bottom is uniform-distribution with array spray point, spray point
Positioned at the underface of ground electrode center hole, and weld on a metal plate；The supply voltage that plasma producing apparatus is used is
5kV~15kV, frequency is 1kHz~20kHz.
The beneficial effects of the invention are as follows：Using plasma technology carries out freshness-keeping sterilizing to food, is driven using ion wind
The flowing of air, plasma is produced by special discharging structure, using some compositions in plasma, for example bear from
Son, excited atom, molecule and free radical isoreactivity species, the microbial reaction with foodstuff surface kill microorganism, meanwhile,
Some enzyme reactions of active component and food therein, the activity of inhibitory enzyme slows down the decomposition rate of organic matter, realizes in low temperature bar
To the disinfectant fresh-keeping of food under part.The device simple production process, it is with low cost, it is easy to popularization and popularization, there is extensive market,
Larger economic benefit and social benefit can be brought to enterprise and society.
Brief description of the drawings
Fig. 1 is structural representation of the invention；
Fig. 2 is supporting plate and plasma producing apparatus connection figure of the invention；
Fig. 3 is the axial sectional view of the plasma producing apparatus of the present invention；
Fig. 4 is the transverse sectional view of the plasma producing apparatus of the present invention；
Fig. 5 is plasma producing apparatus control flow chart of the invention.
Embodiment
With reference to accompanying drawing, a kind of low-temperature plasma device fresh-keeping for food sterilization, including a cuboid housing 3,
The outside of housing 3 is provided with switch gate 4, circuit control module 5 is provided with the inner side of switch gate 4, be provided with no less than two in housing 3
The horizontal shelf 1 for contain things of layer, plasma producing apparatus 2 is located at the underface of horizontal shelf 1 and by insulation
Medium 1-1 is connected with horizontal shelf 1, the upper bottom surface of plasma producing apparatus 2 be ground electrode 2-3 by dielectric 2-4 with
The metallic plate 2-1 connections of bottom surface, ground electrode 2-3 is by stainless steel material system, metallic plate 2-1 and the high-pressure side phase of high voltage power supply
Even, ground electrode 2-3 ground connection；Array circular hole, plasma are uniformly offered on the ground electrode 2-3 of the upper bottom surface of gas ions generating means 2
The inside bottom of body generating means 2 is uniform-distribution with array spray point 2-2, spray point 2-2 and is being located at ground electrode 2-3 center holes just
Lower section, and 2-1 on a metal plate is welded, the supply voltage that plasma producing apparatus 2 is used is 5kV~15kV, and frequency is
1kHz~20kHz.The enlarged drawing of supporting plate and plasma producing apparatus is as shown in Fig. 2 supporting plate leads to plasma producing apparatus
Dielectric 1-1 connections are crossed, horizontal shelf 1 is porous metallic plate, and its void ratio is more than 80%, and plasma producing apparatus is put
Below food, the circulation of gas, the axial sectional view of plasma producing apparatus are driven using ion wind as shown in figure 3,
Transverse sectional view is as shown in figure 4, spray point 2-2 is welded on metallic plate 2-1, and ground electrode 2-3 uses stainless steel material, metallic plate
Connected between ground electrode by dielectric, spray point is arranged on the position of ground electrode center of circular hole, metallic plate connects high-tension electricity
The high-pressure side in source, ground electrode 2 is grounded, and plasma producing apparatus uses the discharging structure for circular hole, and pin is coaxial with circular hole
Structure, the material of pin is stainless steel, can replace pin using the material of the metal materials such as thin rod, cone, polygonal cone；High pressure
Circuit control module is terminated before power supply, rear termination plasma mode block controls electricity additionally by contact-making switch mounted on a door
Road control module, specific control flow are as shown in figure 5, when opening the door, contact-making switch can give one signal of circuit control module, stop
Powered to high voltage power supply, at closing time, contact-making switch can give one signal of circuit control module, start to power to high voltage power supply, etc.
Gas ions generating means is started working, and clock control module is housed in circuit control module, plasma can be arranged as required to
The time of body generating means work.
A kind of low-temperature plasma device fresh-keeping for food sterilization of the present invention can also make small-sized cabinet type structure, supply
Family uses, and each disinfectant fresh-keeping unit can be arranged on shelf, be used for bulk storage plant and storeroom again.The device can be right
Food carries out disinfection fresh-keeping, and atmospheric non-equilibrium plasma is low due to its temperature, and rich in high energy electron, ion, excitation state
Atom, molecule and free radical isoreactivity species, using some compositions in plasma, for example anion, excited atom, point
Son and free radical isoreactivity species, the microbial reaction with foodstuff surface kill microorganism, meanwhile, in active specy and food
Some enzyme reactions in portion, the activity of inhibitory enzyme slows down the resolution ratio of organic matter, realizes and the sterilization of food is protected under cryogenic conditions
It is fresh.
Claims (5)
1. a kind of low-temperature plasma device fresh-keeping for food sterilization, it is characterised in that including a cuboid housing (3),
Switch gate (4) is installed on the outside of the housing (3), is provided with circuit control module (5), housing (3) and sets on the inside of switch gate (4)
The horizontal shelf (1) for contain things no less than two layers is equipped with, plasma producing apparatus (2) is located at horizontal shelf (1)
Underface and be connected by dielectric (1-1) with horizontal shelf (1), plasma producing apparatus (2) upper bottom surface for ground
Electrode (2-3) is connected by dielectric (2-4) with the metallic plate (2-1) of bottom surface, metallic plate (2-1) and the height of high voltage power supply
Pressure side is connected, ground electrode (2-3) ground connection.
2. a kind of low-temperature plasma device fresh-keeping for food sterilization according to claim 1, it is characterised in that institute
State and uniformly offer array circular hole, plasma producing apparatus on the ground electrode (2-3) of plasma producing apparatus (2) upper bottom surface
(2) inside bottom is uniform-distribution with array spray point (2-2), spray point (2-2) be located at ground electrode (2-3) center hole just under
Side, and weld on a metal plate (2-1).
3. a kind of low-temperature plasma device fresh-keeping for food sterilization according to claim 1, it is characterised in that institute
Horizontal shelf (1) is stated for porous metallic plate, its void ratio is more than 80%.
4. a kind of low-temperature plasma device fresh-keeping for food sterilization according to claim 1, it is characterised in that institute
It is 5kV~15kV to state the supply voltage that plasma producing apparatus (2) uses, and frequency is 1kHz~20kHz.
5. a kind of low-temperature plasma device fresh-keeping for food sterilization according to claim 1 or 2, its feature exists
In the ground electrode (2-3) uses stainless steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710494643.XA CN107241849A (en) | 2017-06-26 | 2017-06-26 | A kind of low-temperature plasma device fresh-keeping for food sterilization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710494643.XA CN107241849A (en) | 2017-06-26 | 2017-06-26 | A kind of low-temperature plasma device fresh-keeping for food sterilization |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107241849A true CN107241849A (en) | 2017-10-10 |
Family
ID=59986551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710494643.XA Pending CN107241849A (en) | 2017-06-26 | 2017-06-26 | A kind of low-temperature plasma device fresh-keeping for food sterilization |
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| CN (1) | CN107241849A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108497519A (en) * | 2018-04-23 | 2018-09-07 | 江苏省农业科学院 | The fresh-keeping integrated apparatus of leaf vegetables washing and detoxifying based on non-thermal plasma trap and its application method |
| CN110200060A (en) * | 2019-07-08 | 2019-09-06 | 苏州丰源宝农业科技有限公司 | A kind of continuous preserving fruit and vegetable utilizing apparatus for processing plasma and application method |
| CN110720579A (en) * | 2018-07-16 | 2020-01-24 | 晶彩无限环境科技(苏州)有限公司 | Food fresh-keeping system |
| CN110973234A (en) * | 2019-11-07 | 2020-04-10 | 华南理工大学 | Fruit and vegetable fresh-keeping device and method based on single-array type dielectric barrier discharge plasma |
| CN111374257A (en) * | 2018-12-28 | 2020-07-07 | 南京苏曼等离子科技有限公司 | Atmospheric pressure difference low-temperature plasma cold sterilization and preservation equipment and operation method |
| CN113040317A (en) * | 2021-03-15 | 2021-06-29 | 山东大学 | Food purification device based on radio frequency plasma |
| CN113633804A (en) * | 2021-09-02 | 2021-11-12 | 南京工业大学 | Simple and portable plasma sterilization box device for emergency medical treatment |
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| CN105396227A (en) * | 2015-11-11 | 2016-03-16 | 大连民族大学 | Medical array type micro-plasma skin treatment device |
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| CN2604847Y (en) * | 2003-02-26 | 2004-02-25 | 王守国 | Atmospheric radio-frequency cylinder injective cold plasma generator |
| CN1777347A (en) * | 2005-11-24 | 2006-05-24 | 南京航空航天大学 | Corona coupling medium discharge-blocking device for generating low-temperature plasma |
| CN102647843A (en) * | 2012-04-17 | 2012-08-22 | 中国科学院等离子体物理研究所 | Atmospheric plasma generating device for sterilization |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108497519A (en) * | 2018-04-23 | 2018-09-07 | 江苏省农业科学院 | The fresh-keeping integrated apparatus of leaf vegetables washing and detoxifying based on non-thermal plasma trap and its application method |
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| CN110720579A (en) * | 2018-07-16 | 2020-01-24 | 晶彩无限环境科技(苏州)有限公司 | Food fresh-keeping system |
| CN111374257A (en) * | 2018-12-28 | 2020-07-07 | 南京苏曼等离子科技有限公司 | Atmospheric pressure difference low-temperature plasma cold sterilization and preservation equipment and operation method |
| CN110200060A (en) * | 2019-07-08 | 2019-09-06 | 苏州丰源宝农业科技有限公司 | A kind of continuous preserving fruit and vegetable utilizing apparatus for processing plasma and application method |
| CN110973234A (en) * | 2019-11-07 | 2020-04-10 | 华南理工大学 | Fruit and vegetable fresh-keeping device and method based on single-array type dielectric barrier discharge plasma |
| CN110973234B (en) * | 2019-11-07 | 2021-09-21 | 华南理工大学 | Fruit and vegetable fresh-keeping device and method based on single-array type dielectric barrier discharge plasma |
| CN113040317A (en) * | 2021-03-15 | 2021-06-29 | 山东大学 | Food purification device based on radio frequency plasma |
| CN113633804A (en) * | 2021-09-02 | 2021-11-12 | 南京工业大学 | Simple and portable plasma sterilization box device for emergency medical treatment |
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