CN113491306A - NFC fruit and vegetable juice low-temperature plasma-pulse intense light sterilization reactor - Google Patents
NFC fruit and vegetable juice low-temperature plasma-pulse intense light sterilization reactor Download PDFInfo
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- CN113491306A CN113491306A CN202010189745.2A CN202010189745A CN113491306A CN 113491306 A CN113491306 A CN 113491306A CN 202010189745 A CN202010189745 A CN 202010189745A CN 113491306 A CN113491306 A CN 113491306A
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- intense light
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- temperature plasma
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- vegetable juice
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- 235000012055 fruits and vegetables Nutrition 0.000 title claims abstract description 54
- 235000011389 fruit/vegetable juice Nutrition 0.000 title claims abstract description 53
- 230000001954 sterilising effect Effects 0.000 title claims abstract description 43
- 238000004659 sterilization and disinfection Methods 0.000 title claims abstract description 43
- 239000000463 material Substances 0.000 claims abstract description 51
- 238000000034 method Methods 0.000 claims abstract description 10
- 239000007788 liquid Substances 0.000 claims abstract description 9
- 230000008569 process Effects 0.000 claims abstract description 9
- 230000000694 effects Effects 0.000 claims abstract description 7
- 230000005465 channeling Effects 0.000 claims abstract description 5
- 238000000926 separation method Methods 0.000 claims abstract description 5
- 239000011344 liquid material Substances 0.000 claims abstract description 3
- 230000009471 action Effects 0.000 claims description 7
- 239000011521 glass Substances 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 150000002500 ions Chemical class 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 4
- 239000012528 membrane Substances 0.000 abstract description 2
- 230000000844 anti-bacterial effect Effects 0.000 abstract 1
- 230000007613 environmental effect Effects 0.000 abstract 1
- 230000002349 favourable effect Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 15
- 238000010586 diagram Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 238000012545 processing Methods 0.000 description 5
- 244000005700 microbiome Species 0.000 description 4
- 239000002245 particle Substances 0.000 description 3
- 238000001228 spectrum Methods 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000003205 fragrance Substances 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 235000016709 nutrition Nutrition 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- 210000004666 bacterial spore Anatomy 0.000 description 1
- 210000004027 cell Anatomy 0.000 description 1
- 230000000249 desinfective effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
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- 235000013305 food Nutrition 0.000 description 1
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- 238000009776 industrial production Methods 0.000 description 1
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Images
Classifications
-
- 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
- A23L2/00—Non-alcoholic beverages; Dry compositions or concentrates therefor; Their preparation
- A23L2/70—Clarifying or fining of non-alcoholic beverages; Removing unwanted matter
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23V—INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
- A23V2002/00—Food compositions, function of food ingredients or processes for food or foodstuffs
Abstract
The invention provides a low-temperature plasma-pulse strong light sterilization reactor for NFC fruit and vegetable juice, which comprises a low-temperature plasma reactor component, a pulse strong light reactor component and a material conveying pipeline component; the anode plate and the cathode plate of the plasma reactor component are uniformly provided with a plurality of emission electrodes, and a plurality of small holes are uniformly distributed on the anode plate and the cathode plate, so that the phenomena of turbulence, channeling, wall flow, laminar flow and the like of the freshly squeezed fruit and vegetable juice in the low-temperature plasma generator are avoided, and the freshly squeezed fruit and vegetable juice is ensured to uniformly receive the effect of the low-temperature plasma; the pulse intense light reactor is an inclined plate type pulse intense light reactor, a plurality of NFC fruit and vegetable juice flat plates are arranged in the pulse intense light reactor, and a plurality of pulse intense light lamps are arrayed on the upper part of each flat plate; the material conveying pipeline assembly comprises an inlet, an outlet and a valve of the material, an inlet, an outlet and a valve of the gas and a duckbill-shaped film distributor. The entrance point of material pipeline in the pulse intense light reactor sets up the membrane distributor of duckbilled type for NFC fruit and vegetable juice forms liquid film on the flat board, passes through pulse intense light cavity uniformly, accepts the effect of pulse intense light, improves the bactericidal efficiency of pulse intense light, makes the gaseous complete release of mixing with liquid material simultaneously, realizes gas-liquid separation. The invention realizes the rapid and continuous sterilization of the NFC fruit and vegetable juice at normal temperature and normal pressure, has the advantages of environmental protection, energy saving and favorable economic benefit and popularization value, and is environment-friendly in the whole process.
Description
Technical Field
The invention belongs to the field of non-thermal sterilization of food, and particularly relates to a non-concentrated (NFC) fruit and vegetable juice low-temperature plasma-pulsed intense light sterilization reactor.
Background
The NFC fruit and vegetable juice has the advantages of good quality and high added value, and is an important direction for development of the fruit and vegetable fine and deep processing industry, but the NFC fruit and vegetable juice belongs to a thermosensitive product, and the color, the flavor and the nutrient substances of the NFC fruit and vegetable juice are changed by adopting a thermal processing technology, so that the product quality is influenced; by adopting a non-thermal processing technology, the negative problem in the thermal processing process can be solved, and the requirements of NFC fruit and vegetable juice processing production are met.
The non-thermal sterilization technology for fruit and vegetable juice at home and abroad is ultrahigh pressure sterilization, high density sterilization, pulsed electric field sterilization, pulsed magnetic field sterilization, low-temperature plasma sterilization, pulsed high-light sterilization and the like, which are obtained through literature retrieval. The basic principle of low-temperature plasma sterilization is that various excited particles and high-energy electrons are formed in the discharging process, so that the structure of harmful microorganisms is damaged, irreversible damages such as thallus rupture, content overflow, electrolyte collapse and the like are caused, the growth and metabolism of the harmful microorganisms are influenced, and meanwhile, DNA structures in cells can be damaged, so that the harmful microorganisms lose the reproductive and self-replicating abilities to achieve the killing effect. The strong pulse light sterilization uses alternating current as a power supply to provide energy for an inert gas lamp to generate strong pulse light flash, the spectrum of the strong pulse light flash is similar to the spectrum of the sun but is thousands of times stronger than the spectrum of the sun, the sterilization time is short, and the treatment process is normal temperature and normal pressure. Most of the sterilization technologies are intermittent sterilization and single sterilization, and the sterilization technologies are difficult to inactivate bacterial spores and enzymes with strong vitality, so that the safety risk of incomplete sterilization exists. The invention develops and designs the NFC fruit and vegetable juice low-temperature plasma-pulse high-light sterilization reactor, can make up for the defects of a single sterilization technology, realizes continuous sterilization, realizes normal temperature and pressure in the whole sterilization process, and is easy to realize industrial production.
Disclosure of Invention
In view of the defects of the prior art, the invention provides the low-temperature plasma-pulsed high-light sterilization reactor for the NFC fruit and vegetable juice, the reactor can continuously feed and discharge materials, harmful microorganisms in the heat-sensitive NFC fruit and vegetable juice can be rapidly and thoroughly killed, and the sterilized NFC fruit and vegetable juice keeps the original color, fragrance, taste and nutritional ingredients.
In order to solve the technical problems, the technical scheme adopted by the invention comprises the following steps:
a NFC fruit and vegetable juice low-temperature plasma-pulse intense light sterilization reactor comprises a low-temperature plasma reactor component, a pulse intense light reactor component and a material conveying pipeline component; the plasma reactor component is provided with an anode plate and a cathode plate, and the anode plate is uniformly provided with a plurality of emission electrodes; the pulse intense light reactor is an inclined plate type pulse intense light reactor, a plurality of NFC fruit and vegetable juice flat plates are arranged in the pulse intense light reactor, and a plurality of pulse intense light lamps are arrayed on the upper part of each flat plate; the port of the material conveying pipeline in the pulse intense light reactor is provided with a duckbilled film distributor.
In the technical scheme of the invention, the invention also has the following additional technical characteristics:
furthermore, the wall material of the low-temperature plasma generator is transparent white glass, so that real-time observation in the low-temperature plasma discharge working process is realized.
Furthermore, a material inlet and a gas inlet are arranged at the bottom of the low-temperature plasma generator, and the material feeding amount and the gas inflow amount are adjusted through a valve; the anode plate of the low-temperature plasma generator is connected to the positive electrode of a power supply through a binding post, and the cathode plate is connected to the negative electrode of the power supply through the binding post, so that discharge is generated between the positive plate and the negative plate; the low-temperature plasma positive plate is uniformly provided with a plurality of electrodes, so that uniform discharge in the low-temperature plasma reaction cavity is ensured.
Furthermore, a plurality of small holes are uniformly formed in the cathode plate and the anode plate of the low-temperature plasma generator, so that the phenomena of turbulence, channeling, wall flow, laminar flow and the like of the NFC fruit and vegetable juice in the low-temperature plasma generator are avoided, and the NFC fruit and vegetable juice is ensured to uniformly receive the action of low-temperature plasma; the top of the plasma generator is only provided with an outlet for mixing materials and gas, so that the full action of active ions and the materials generated in the plasma generator is ensured; and the outlet of the low-temperature plasma generator is connected with a pulse intense light generator.
Furthermore, the wall material of the intensive pulse light generator is transparent white glass, so that real-time observation in the plasma discharge working process is realized; the pulse intense light generator is provided with a material inlet, a material outlet, a gas outlet and a plurality of NFC fruit and vegetable juice flat plates; and a plurality of pulse high-light lamps are uniformly arrayed right above the NFC fruit and vegetable juice flat plate.
Preferably, the design of pulse intense light generator is ramp type pulse intense light generator, and the material import is supporting to have duckbilled type membrane distributor for NFC fruit and vegetable juice forms liquid film on the flat board, passes through pulse highlight cavity uniformly, accepts the effect of pulse highlight, improves the sterilization efficiency of pulse intense light, makes the gaseous complete release with liquid material mixture simultaneously, realizes gas-liquid separation.
The working principle of the invention is as follows: opening a material inlet and a gas inlet of the low-temperature plasma generator, uniformly mixing the material and the gas, and then uniformly entering the cavity space of the low-temperature plasma generator to receive the action of the low-temperature plasma; adjusting the feeding amount of the material to ensure that the material and high-energy particles and active free radicals (-OH, O) generated by the isothermal plasma2-，H2O2，O3Etc.) function adequately; after the low-temperature plasma sterilization is finished, the materials are connected through a material pipe and enter a pulse strong light generator; NFC fruit and vegetable juice passes through duckbilled type film distributor to form liquid film on the flat board, under the effect of delivery pump and gravity, from the even lower part that flows in flat board upper portion, accomplish the separation of gas and material simultaneously, gas is discharged from pulse intense light reactor top, and the material is discharged from its bottom pipeline, accomplishes disinfecting of NFC fruit and vegetable juice.
The invention has the advantages and positive effects that: two non-thermal sterilization devices, namely low-temperature plasma and high-pulse light, are connected in series to realize continuous non-thermal sterilization of the heat-sensitive material NFC fruit and vegetable juice, the sterilization process is normal temperature and normal pressure, and the NFC fruit and vegetable juice is green and pollution-free and can keep original color, fragrance, taste and nutritional ingredients of the NFC fruit and vegetable juice.
Drawings
Fig. 1 is a schematic structural diagram of a low-temperature plasma-pulsed light sterilization reactor for NFC fruit and vegetable juice according to the present invention.
Fig. 2 is a schematic structural view of an anode plate in the low-temperature plasma reactor of the present invention.
Fig. 3 is a schematic structural view of a cathode plate in the low temperature plasma reactor of the present invention.
Fig. 4 is a schematic structural diagram of a duckbilled film distributor in the pulsed strong light sterilization reactor of the present invention.
FIG. 5 is a schematic diagram of the structure of the distribution of the pulsed high-intensity lamps in the pulsed high-intensity sterilization reactor of the present invention.
Detailed Description
The technical solution of the present invention will be described in further detail with reference to the accompanying drawings and the detailed description. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The invention provides a low-temperature plasma-pulse high-light sterilization reactor for NFC fruit and vegetable juice, which is shown in a figure 1 and comprises a material conveying inlet valve 1, a pipeline inlet 2, a low-temperature plasma reactor 3, an NFC fruit and vegetable juice buffering transition region 4, a cathode plate power terminal 5, a low-temperature plasma cathode plate 13, a low-temperature plasma anode plate 11, an anode plate terminal 7, a low-temperature plasma reactor shell 8, a buffering transition region 9 at the upper end of the anode plate and the shell, pipelines 10 and 16 for connecting the low-temperature plasma reactor and a pulse high-light reactor, duckbilled film distributors 17, 18 and 19, a pulse high-light reactor shell 20, pulse high- light lamps 22, 23, 25 and 27, NFC fruit and vegetable juice flat plates 21, 26 and 28, an exhaust pipe 24, a discharge valve 29, a discharge port 30 and a pulse high-light reactor support 31.
As shown in fig. 1, the NFC fruit and vegetable juice low-temperature plasma-pulse high-light sterilization reactor includes a low-temperature plasma reactor component, a pulse high-light reactor component, and a pipeline component. The low-temperature plasma reactor component comprises a low-temperature plasma reactor shell 8, a cathode plate 5, an anode plate 11 and power supply wiring terminals 5 and 7; the pulse intense light reactor assembly comprises a pulse intense light reactor shell 20, NFC fruit and vegetable juice bearing flat plates 21, 26 and 28 and pulse intense light lamps 22, 23, 25 and 27; the pipeline assembly comprises a material inlet valve 1 of the plasma reactor, a material inlet 2, a gas inlet 14, a gas inlet valve 15, a connecting pipeline 10 of the plasma reactor and the pulse intense-light reactor, duckbill- shaped film distributors 17, 18 and 19, a material outlet 30 of the pulse intense-light reactor, a material outlet valve 29, an exhaust port 24 and a support 31.
Fig. 2 is a schematic structural diagram of an anode plate 11 in the low-temperature plasma reactor of the present invention, and the reference numerals indicate that a plurality of electrodes 12 and NFC fruit and vegetable juice passage holes 32 are distributed in an array on the anode plate 11 of the low-temperature plasma reactor.
Fig. 3 is a schematic structural diagram of a cathode plate 13 in the low-temperature plasma reactor of the present invention, and reference numerals indicate that a plurality of NFC fruit and vegetable juice channel pores 33 are distributed in an array on the cathode plate 13 of the low-temperature plasma reactor, so as to prevent NFC fruit and vegetable juice from generating turbulence, channeling, wall flow, laminar flow, etc. in the low-temperature plasma generator, and ensure that the NFC fruit and vegetable juice uniformly receives the effect of the low-temperature plasma;
fig. 4 is a schematic structural diagram of a duckbilled film distributor 17 in the pulse high-light sterilization reactor of the present invention, and reference numerals indicate that a port 35 of the duckbilled film distributor 17 is connected to an NFC fruit and vegetable juice pipeline 16, and a port 34 of the film distributor 17 distributes NFC fruit and vegetable juice films uniformly from the upper ends to the lower ends of material bearing flat plates 21, 26, 28 to receive the effects of pulse high- light lamps 22, 23, 25, 27.
Fig. 5 is a schematic structural diagram of the distribution of light sources 22, 23, 25, and 27 in the pulse high-light sterilization reactor of the present invention, wherein the reference numerals indicate that a plurality of NFC fruit and vegetable juice bearing flat plates 21 are uniformly arranged inside the housing 20 of the pulse high-light reactor, and a plurality of pulse high-light lamps 25 are arrayed above the flat plates.
The technical scheme and the working method adopted for solving the technical problems are as follows: opening the material inlet valve 1 and the gas inlet valve 15 of the low-temperature plasma generator, mixing the materials and the gas, and uniformly entering the space of the cavity 4 through the small hole 33 on the negative plate 5, wherein the cavity 4 and the cavity 9 have the functions of preventing the NFC fruit and vegetable juice from generating turbulence, channeling, wall flow, laminar flow and the like in the low-temperature plasma generator and ensuring that the NFC fruit and vegetable juice uniformly receives the low-temperature plasma; adjusting the feeding amount of the material to ensure that the material and high-energy particles and active free radicals (-OH, O) generated by the isothermal plasma2-，H2O2，O3Etc.) function adequately; after the low-temperature plasma sterilization is finished, the materials are connected through a material pipe 10 and enter a pulse strong light generator; the materials form a liquid film through a duckbill-shaped film distributor 17And the NFC fruit and vegetable juice uniformly flows from the upper ends to the lower ends of the material bearing flat plates 21, 26 and 28, receives the action of the pulse high- light lamps 22, 23, 25 and 27, simultaneously completes the separation of gas and the material, the gas is discharged from a gas outlet 24 at the top of the pulse high-light reactor, the material is discharged from a pipeline outlet 30 at the bottom of the pulse high-light reactor, and the sterilization of the NFC fruit and vegetable juice is completed.
The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above embodiment, and it should be noted that any equivalent substitution, obvious modification made by those skilled in the art under the teaching of the present specification are within the spirit scope of the present specification, and the present invention should be protected.
Claims (6)
1. A non-concentrated (NFC) fruit and vegetable juice low-temperature plasma-pulse intense light sterilization reactor is characterized by comprising a low-temperature plasma reactor component, a pulse intense light reactor component and a material conveying pipeline component; the plasma reactor component is provided with an anode plate and a cathode plate, and the anode plate is uniformly provided with a plurality of emission electrodes; the pulse intense light reactor comprises a material inlet, a material outlet, a gas outlet, a plurality of layers of NFC fruit and vegetable juice flat plates, a plurality of pulse intense light lamps and a duckbilled film distributor.
2. The low-temperature plasma generator according to claim 1, wherein the wall material is transparent glass, so that real-time observation during the low-temperature plasma discharge operation is realized.
3. The low-temperature plasma generator according to claim 1, wherein the anode plate is connected to a positive electrode of a power supply through a terminal, the cathode plate is connected to a negative electrode of the power supply through the terminal, and discharge is generated between the anode plate and the cathode plate; the low-temperature plasma anode plate is uniformly provided with a plurality of electrodes, so that uniform discharge in the low-temperature plasma reaction cavity is ensured.
4. The low-temperature plasma generator according to claim 1, wherein a plurality of small holes are uniformly arranged on the cathode plate and the anode plate, so that phenomena of turbulence, channeling, wall flow, laminar flow and the like generated in the low-temperature plasma generator by the NFC fruit and vegetable juice are avoided, and the NFC fruit and vegetable juice is ensured to uniformly receive the effect of the low-temperature plasma; the top of the plasma generator is only provided with an outlet for mixing materials and gas, so that the full action of active ions and the materials generated in the plasma generator is ensured.
5. The pulse intense light generator of claim 1, which is characterized in that the pulse intense light generator is designed as a sloping plate type pulse intense light reactor, and a plurality of pulse intense light lamps are uniformly arrayed above the material bearing plate, so that NFC fruit and vegetable juice can uniformly, thoroughly and efficiently receive the action of the pulse intense light lamps; the wall material is transparent white glass, so that real-time observation in the plasma discharge working process is realized.
6. The pulsed intense light generator according to claims 1 and 5, characterized in that the material inlet is provided with a duckbilled film distributor, so that the NFC fruit and vegetable juice forms a liquid film on the material bearing plate, and the liquid film uniformly passes through the pulsed intense light cavity to receive the action of the pulsed intense light, thereby improving the sterilization efficiency of the pulsed intense light, and simultaneously, the gas mixed with the liquid material is completely released, thereby realizing gas-liquid separation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010189745.2A CN113491306A (en) | 2020-03-18 | 2020-03-18 | NFC fruit and vegetable juice low-temperature plasma-pulse intense light sterilization reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010189745.2A CN113491306A (en) | 2020-03-18 | 2020-03-18 | NFC fruit and vegetable juice low-temperature plasma-pulse intense light sterilization reactor |
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| Publication Number | Publication Date |
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| CN113491306A true CN113491306A (en) | 2021-10-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010189745.2A Pending CN113491306A (en) | 2020-03-18 | 2020-03-18 | NFC fruit and vegetable juice low-temperature plasma-pulse intense light sterilization reactor |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120269677A1 (en) * | 2009-12-31 | 2012-10-25 | Shanghai Tianyun Environmental Protection Technology Co., Ltd. | Plasma sterilizing-purifying device and method for air sterilizing and purifying |
| CN104905380A (en) * | 2015-04-08 | 2015-09-16 | 杭州聚电科技有限公司 | Sterilization device based on combination of intensive pulse light and water film |
| CN206586275U (en) * | 2017-01-13 | 2017-10-27 | 青岛农业大学 | A kind of fresh-cut fruit and vegetable tunnel continuous plasma sterilizing unit |
| CN208925152U (en) * | 2017-12-29 | 2019-06-04 | 西北农林科技大学 | A kind of membranaceous cold sterilizing unit of serialization low temperature plasma for fruit juice |
-
2020
- 2020-03-18 CN CN202010189745.2A patent/CN113491306A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120269677A1 (en) * | 2009-12-31 | 2012-10-25 | Shanghai Tianyun Environmental Protection Technology Co., Ltd. | Plasma sterilizing-purifying device and method for air sterilizing and purifying |
| CN104905380A (en) * | 2015-04-08 | 2015-09-16 | 杭州聚电科技有限公司 | Sterilization device based on combination of intensive pulse light and water film |
| CN206586275U (en) * | 2017-01-13 | 2017-10-27 | 青岛农业大学 | A kind of fresh-cut fruit and vegetable tunnel continuous plasma sterilizing unit |
| CN208925152U (en) * | 2017-12-29 | 2019-06-04 | 西北农林科技大学 | A kind of membranaceous cold sterilizing unit of serialization low temperature plasma for fruit juice |
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