CN109221373A - A kind of packaging betel nut high voltage electric field low temperature plasma sterilization method - Google Patents
A kind of packaging betel nut high voltage electric field low temperature plasma sterilization method Download PDFInfo
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- CN109221373A CN109221373A CN201811342997.3A CN201811342997A CN109221373A CN 109221373 A CN109221373 A CN 109221373A CN 201811342997 A CN201811342997 A CN 201811342997A CN 109221373 A CN109221373 A CN 109221373A
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- betel nut
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
- A23B7/00—Preservation or chemical ripening of fruit or vegetables
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- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
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Abstract
The invention discloses a kind of packaging betel nut high voltage electric field low temperature plasma sterilization methods, betel nut product is put into and is filled with gas in packaging bag (box) and is sealed packaging, under the conditions of room temperature, 50 ~ 95%RH of relative humidity, packaging bag (box) is placed between two electrodes of high voltage electric field plasma sterilization device, using the multiple sterilization mode in short-term-gap-, processing voltage strength is 15 ~ 30kv/cm, and the single electric field action time is 20 ~ 40s, interval time is 30 ~ 90s, is reprocessed 3 ~ 5 times.Pack betel nut using high voltage electric field plasma in short-term-the multiple sterilization mode in gap-, in the case where guaranteeing betel nut organoleptic quality, bactericidal effect is significantly improved, and in short-term-gap-mass automatic production that repeatedly sterilization mode is able to satisfy packaging betel nut product requires.
Description
Technical field
The present invention relates to food processing technology field, specially a kind of packaging betel nut high voltage electric field low temperature plasma is cold to be killed
Bacterium method.
Background technique
In recent years, the production technology of edible areca-nut has been greatly developed, but its processing technology mostly use greatly it is traditional
Labour-intensive processing technology, sanitary condition is poor, easily microbial contamination in process, to cause betel nut product
Microorganism total amount is exceeded, influences its shelf life.Currently, processing betel nut mainly passes through addition different preservatives, ultraviolet light irradiation, spoke
According to the methods of reduce micro organism quantity.But the bactericidal effect of these methods is unsatisfactory, to the shelf life effect for extending betel nut
It is unobvious, and the quality of betel nut is reduced to a certain extent.
The cold sterilization of high voltage electric field plasma is current emerging Brief Analysis of Cold Sterilization on Food a kind of in the world, utilizes food
Package interior gas medium generates photoelectron, ion, particle and living radical group etc., these active constituents connect with microorganism
Touching, attack destroy eucaryotic cell structure and reach bactericidal effect.Currently, the research of high voltage electric field plasma sterilization method is
Obtain certain progress.Patent ZL201410347682.3 discloses a kind of fresh meat high voltage electric field plasma body cooperative nanometer light and urges
Change sterilization fresh-keeping method, this method is that nano material is made to modified coating fluid to be dried to antibiotic packaging material to fresh meat progress
Continuous cold sterilization processing after MAP packaging.Patent ZL.201510182548.7 discloses a kind of plasma body cooperative nano material light
Sterilization method in the packaging of catalysis is to be placed in plasma device to sterilize again after mixing microorganism with nano material
Processing.It is rough whole but since betel nut surface is in multifilament shape, and have many rough netted rills, because
This, the above method is not suitable for the sterilization processing of betel nut converted products.It develops a kind of efficient green low-carbon, influence product sensory
The packaging betel nut sterilization method of quality is betel nut industry key technology difficulty urgently to be solved.
Summary of the invention
It is cold the purpose of the present invention is providing a kind of packaging betel nut high voltage electric field low temperature plasma in view of the above technical problems
Method for disinfection.This method implements cold sterilization processing to the betel nut after packing with high voltage electric field low-temperature plasma device, specific
Temperature and humidity environment under, number and firing time are formed by optimization plasma exciatiaon and improve bactericidal effect to betel nut, is had
Effect extends the shelf life of betel nut product.Meanwhile this method avoid the secondary dirts of the microorganism generated when first sterilizing and packing product afterwards
Dye is suitable for large-scale industrial production.The present invention is directed to for betel nut pack product provide a kind of safe and efficient, low-carbon green,
Easy-operating sterilization method.
The technical solution of the present invention is to provide a kind of packaging betel nut high voltage electric field low temperature plasma sterilization methods, special
Sign is comprising following steps:
(1) betel nut product is put into packaging bag (box) and is inflated packaging；
(2) packaging bag (box) is placed between two electrodes of high voltage electric field low temperature plasma sterilizing unit, processing voltage is strong
Degree is 15-30kv/cm；
(3) use the multiple sterilization mode in short-term-gap-, the single electric field action time be 20-40s, interval time 30-90s,
Reprocessing 3-5 times.
Further, in the step (1), the gas being filled in betel nut product packaging is air.
Further, in the step (1), the gas being filled in betel nut product packaging is high oxygen concentration gas, oxygen
Concentration is 21%-60%.
Further, in the step (2), room temperature, relative humidity 50-95%RH.
Further, the high voltage electric field low temperature plasma sterilizing unit includes plasma producing apparatus and high pressure
Field generator.
The beneficial effects of the present invention are: a kind of packaging betel nut high voltage electric field low temperature plasma sterilization method of the invention
It has the following beneficial effects:
(1) present invention makes full use of the sterilization aftereffect of low temperature plasma in packing using in short-term-interval-multiple processing mode
High voltage electric field action time should be shortened, under the premise of guaranteeing betel nut product sensory quality significantly improve bactericidal effect；Together
When in short-term-interval-repeatedly processing mode be able to satisfy packaging betel nut product mass automatic production line requirement.
(2) low temperature plasma is generated by excitation package interior gas medium to be sterilized, avoid product tradition work
Secondary pollution caused by link is packed in skill, while can significantly reduce the usage amount of preservative.
(3) high voltage electric field low temperature plasma method for disinfection of the invention carries out at normal temperatures and pressures, short processing time, no
Packaging and package interior can be caused to generate heat and temperature change, chemical residual will not be generated, avoid other method for disinfection because
Temperature or residue problem are negatively affected caused by betel nut product sensory quality, are a kind of efficient green cold sterilization technologies.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of high voltage electric field low temperature plasma generating device of the invention；
Appended drawing reference: plasma producing apparatus 1, top electrode 11, lower electrode 12, upper insulation protective board 13, lower insulation protective board 14, Bin
Bulky packaging bag 15, high voltage electric field generator 2, regulating and controlling voltage device 3.
Specific embodiment
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, tie below
Specific embodiment is closed, the present invention is further explained.
As shown, a kind of packaging betel nut high voltage electric field low temperature plasma sterilization method of the invention includes following step
It is rapid:
(1) betel nut product is put into packaging bag (box) and is inflated packaging, the gas being filled in betel nut product packaging is air
Or high oxygen concentration gas, the concentration of oxygen are 21%-60%；
(2) when room temperature, relative humidity are 50-95%RH, packaging bag (box) is placed in the sterilization of high voltage electric field low temperature plasma
Between two electrodes of device, processing voltage strength is 15-30kv/cm；
(3) use the multiple sterilization mode in short-term-gap-, the single electric field action time be 20-40s, interval time 30-90s,
Reprocessing 3-5 times.
In a preferred embodiment of the present invention, the high voltage electric field low temperature plasma sterilizing unit includes plasma
Generating device 1 and high voltage electric field generator 2.The plasma producing apparatus 1 includes upper and lower spaced top electrode 11
With lower electrode 12, the bottom of the top electrode 11 is provided with insulation protective board 13, and the top of the lower electrode 12 is provided with lower exhausted
Edge backplate 14, for placing betel nut packaging bag 15 between the upper insulation protective board 13 and the upper insulation protective board 13.The high pressure
Field generator 2 connects the plasma producing apparatus 1, and the high voltage electric field generator 2 is also connected with a regulating and controlling voltage device 3.
Sample pretreatment: betel nut sample is to randomly select from betel nut company production line, transports laboratory back.
Packed sample (packaging bag size: the cm of 18.5 cm × 13): by betel nut sample (20 ± 1g) be placed in packaging bag into
Row air-packing carries out corona treatment under the conditions of room temperature, 70 ~ 80%RH of relative humidity.
Box-packed sample (packing box: the cm × 3.5 of 17 cm × 12 cm): betel nut sample (20 ± 1g) is placed in packaging bag
It is filled with high-concentration oxygen, gas ratio is oxygen: carbon dioxide: nitrogen=40%:30%:30%, in room temperature, relative humidity 70 ~ 80
Corona treatment is carried out under the conditions of %RH.
Embodiment 1
For the cold sterilization processing of low temperature plasma of packed betel nut product.
Blank group 1: packaging sample directly detects its total plate count without corona treatment；
Experimental group 1: packaging sample disposably handles 30s, detects its total plate count through 17.8 kV/cm of voltage strength.
Experimental group 2: packaging sample disposably handles 30s through 17.8 kV/cm of voltage strength, is spaced 60s,
It is repeated 3 times, detects its total plate count.
Experimental group 3: packaging sample disposably handles 30s through 17.8 kV/cm of voltage strength, is spaced 60s,
It is repeated 5 times, detects its total plate count.
Experimental group 4: packaging sample disposably handles 30s through 17.8 kV/cm of voltage strength, is spaced 90s,
It is repeated 4 times, detects its total plate count.
Experimental group 5: packaging sample disposably handles 30s through 17.8 kV/cm of voltage strength, is spaced 90s,
It is repeated 7 times, detects its total plate count.
Table 1: the colony counts of packed betel nut after processing
Packed betel nut is after low temperature plasma is handled for the first time as the result is shown in table 1, and bacterium colony is total in interval time longer betel nut
Number is fewer, illustrates that bactericidal effect is better, and data show that the bactericidal effect of experimental group 4 is better than experimental group 2 in table.Interval repeats to kill
The increase of bacterium number can enhance bactericidal effect (data show the bactericidal effect of experimental group 3 better than experimental group 2 in table), but repeat
Excessively then effect is unobvious (data show that the effect of experimental group 4 and experimental group 5 is not much different in table) for number.
Embodiment 2
For the cold sterilization processing of low temperature plasma of box-packed betel nut product.
Blank group 1: packaging sample directly detects its total plate count without corona treatment；
Experimental group 1: packaging sample disposably handles 30s, detects its total plate count through 21.8 kV/cm of voltage strength.
Experimental group 2: packaging sample disposably handles 30s through 21.8 kV/cm of voltage strength, is spaced 60s,
It is repeated 3 times, detects its total plate count.
Experimental group 3: packaging sample disposably handles 30s through 21.8 kV/cm of voltage strength, is spaced 60s,
It is repeated 5 times, detects its total plate count.
Experimental group 4: packaging sample disposably handles 30s through 21.8 kV/cm of voltage strength, is spaced 90s,
It is repeated 4 times, detects its total plate count.
Experimental group 5: packaging sample disposably handles 30s through 21.8 kV/cm of voltage strength, is spaced 90s,
It is repeated 7 times, detects its total plate count.
Table 2: the total plate count of box-packed betel nut after processing
Table 2 shows box-packed betel nut using interval-repetition sterilization mode bactericidal effect, experimental result and packed betel nut in table 1
As a result consistent.Interval time is longer after a sterilization processing, is more conducive to enhance bactericidal effect, data display experiment in table
The effect of group 4 is better than experimental group 2.It repeats the increase of sterilization processing number to be conducive to enhance bactericidal effect, data display experiment in table
The effect of group 3 is better than experimental group 2.Repeating sterilization number should not be excessive, and data show bactericidal effect and the experiment of experimental group 5 in table
4 differences of group are unobvious, and repeatedly sterilization processing can reach good result in a certain range.
In entire sterilization test, the organoleptic qualities such as color, flavor of packed and box-packed betel nut do not change, illustrate height
The cold sterilization processing of piezoelectric field plasma does not influence the organoleptic quality of betel nut.
In conclusion high voltage electric field cold source plasma sterilization method has good bactericidal effect to betel nut, maintain simultaneously
The good feeling quality of product, is conducive to extend its shelf life.
Above embodiments are only the one such embodiment of the present invention, and the description thereof is more specific and detailed, but can not
Therefore limitations on the scope of the patent of the present invention are interpreted as.It should be pointed out that for those of ordinary skill in the art,
Without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection model of the invention
It encloses.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (5)
1. a kind of packaging betel nut high voltage electric field low temperature plasma sterilization method, which is characterized in that it includes the following steps:
(1) betel nut product is put into packaging bag and is inflated packaging；
(2) packaging bag is placed between two electrodes of high voltage electric field low temperature plasma sterilizing unit, processing voltage strength is
15-30kv/cm；
(3) use the multiple sterilization mode in short-term-gap-, the single electric field action time be 20-40s, interval time 30-90s,
Reprocessing 3-5 times.
2. a kind of packaging betel nut high voltage electric field low temperature plasma sterilization method according to claim 1, feature exist
In: in the step (1), the gas being filled in betel nut product packaging is air.
3. a kind of packaging betel nut high voltage electric field low temperature plasma sterilization method according to claim 1, feature exist
In: in the step (1), the gas being filled in betel nut product packaging is high oxygen concentration gas, and the concentration of oxygen is 21%-60%.
4. a kind of packaging betel nut high voltage electric field low temperature plasma sterilization method according to claim 1, feature exist
In: in the step (2), room temperature, relative humidity 50-95%RH.
5. a kind of packaging betel nut high voltage electric field low temperature plasma sterilization method according to claim 1, feature exist
In: the high voltage electric field low temperature plasma sterilizing unit includes plasma producing apparatus and high voltage electric field generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811342997.3A CN109221373A (en) | 2018-11-13 | 2018-11-13 | A kind of packaging betel nut high voltage electric field low temperature plasma sterilization method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811342997.3A CN109221373A (en) | 2018-11-13 | 2018-11-13 | A kind of packaging betel nut high voltage electric field low temperature plasma sterilization method |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109997901A (en) * | 2019-04-24 | 2019-07-12 | 管俊林 | A kind of technology that hickory chick high-pressure electrostatic is fresh-keeping |
| CN111165566A (en) * | 2020-01-06 | 2020-05-19 | 四川省农业科学院农产品加工研究所 | High-voltage electric field low-temperature plasma cold sterilization and preservation technical method for low-salt pickled vegetables |
| CN111328956A (en) * | 2020-03-31 | 2020-06-26 | 苏州丰源宝农业科技有限公司 | Single-side contact type packaged plasma processing equipment and using method thereof |
| CN111422436A (en) * | 2020-03-31 | 2020-07-17 | 苏州丰源宝农业科技有限公司 | Double-side contact type packaged plasma processing equipment and using method thereof |
| CN111587913A (en) * | 2020-05-22 | 2020-08-28 | 天津科技大学 | Low-temperature plasma technology-based day lily enzyme deactivating and sterilizing method |
| CN112586555A (en) * | 2020-12-04 | 2021-04-02 | 南京农业大学 | Cold sterilization and preservation technical method for fresh-cut fruits and vegetables by cooperation of low-temperature plasma activated water and DBD |
| CN112753750A (en) * | 2020-12-31 | 2021-05-07 | 南京农业大学 | High-voltage electric field low-temperature plasma cold sterilization method for instant dry fruit food |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109997901A (en) * | 2019-04-24 | 2019-07-12 | 管俊林 | A kind of technology that hickory chick high-pressure electrostatic is fresh-keeping |
| CN111165566A (en) * | 2020-01-06 | 2020-05-19 | 四川省农业科学院农产品加工研究所 | High-voltage electric field low-temperature plasma cold sterilization and preservation technical method for low-salt pickled vegetables |
| CN111328956A (en) * | 2020-03-31 | 2020-06-26 | 苏州丰源宝农业科技有限公司 | Single-side contact type packaged plasma processing equipment and using method thereof |
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| CN111587913A (en) * | 2020-05-22 | 2020-08-28 | 天津科技大学 | Low-temperature plasma technology-based day lily enzyme deactivating and sterilizing method |
| CN112586555A (en) * | 2020-12-04 | 2021-04-02 | 南京农业大学 | Cold sterilization and preservation technical method for fresh-cut fruits and vegetables by cooperation of low-temperature plasma activated water and DBD |
| CN112753750A (en) * | 2020-12-31 | 2021-05-07 | 南京农业大学 | High-voltage electric field low-temperature plasma cold sterilization method for instant dry fruit food |
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Application publication date: 20190118 |