CN109006966A - A method of aquatic products shelf life is extended based on ultralow isothermal plasma - Google Patents
A method of aquatic products shelf life is extended based on ultralow isothermal plasma Download PDFInfo
- Publication number
- CN109006966A CN109006966A CN201811112653.3A CN201811112653A CN109006966A CN 109006966 A CN109006966 A CN 109006966A CN 201811112653 A CN201811112653 A CN 201811112653A CN 109006966 A CN109006966 A CN 109006966A
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- China
- Prior art keywords
- aquatic products
- dielectric barrier
- shelf life
- ultralow
- plasma
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- 238000000034 method Methods 0.000 title claims abstract description 29
- 230000004888 barrier function Effects 0.000 claims abstract description 35
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 28
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 14
- 239000007788 liquid Substances 0.000 claims abstract description 12
- 239000007789 gas Substances 0.000 claims abstract description 10
- 239000012528 membrane Substances 0.000 claims abstract description 5
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 9
- 239000010453 quartz Substances 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 150000002500 ions Chemical class 0.000 claims description 2
- 238000005057 refrigeration Methods 0.000 claims description 2
- 230000001954 sterilising effect Effects 0.000 abstract description 10
- 238000004659 sterilization and disinfection Methods 0.000 abstract description 10
- 235000013305 food Nutrition 0.000 abstract description 8
- 238000005516 engineering process Methods 0.000 abstract description 4
- 235000013372 meat Nutrition 0.000 abstract description 4
- 238000004321 preservation Methods 0.000 abstract description 2
- 238000003851 corona treatment Methods 0.000 description 5
- 230000005284 excitation Effects 0.000 description 4
- 239000004615 ingredient Substances 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 206010061958 Food Intolerance Diseases 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 235000011389 fruit/vegetable juice Nutrition 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 230000000813 microbial effect Effects 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 230000008542 thermal sensitivity Effects 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- OUUQCZGPVNCOIJ-UHFFFAOYSA-M Superoxide Chemical compound [O-][O] OUUQCZGPVNCOIJ-UHFFFAOYSA-M 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 238000004320 controlled atmosphere Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006911 enzymatic reaction Methods 0.000 description 1
- 150000004676 glycans Chemical class 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 150000002632 lipids Chemical class 0.000 description 1
- 235000013622 meat product Nutrition 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920001282 polysaccharide Polymers 0.000 description 1
- 239000005017 polysaccharide Substances 0.000 description 1
- 239000003642 reactive oxygen metabolite Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
- A23B4/00—General methods for preserving meat, sausages, fish or fish products
- A23B4/015—Preserving by irradiation or electric treatment without heating effect
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Chemical & Material Sciences (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
Abstract
The invention discloses a kind of methods for extending aquatic products shelf life based on ultralow isothermal plasma, and the method includes the steps of: (1) being placed in aquatic products sample in the vacuum chamber of dielectric barrier discharge plasma equipment；(2) start dielectric barrier discharge plasma equipment, wherein voltage range is 20-120kV, and frequency control is 50-60Hz, and power control is in 80-500W, gas flow rate 3-25L/min, to aquatic products sample treatment 5-15min；(3) it is refrigerated after aquatic products sample packed with sealed membrane to treated.The liquid nitrogen plasma process conditions that the present invention uses are very mild, maintain low-temperature condition while sterilization, are a kind of effective cold sterilization technologies, are very suitable for the bacteriostasis, preservation of fresh meat, extend the shelf life of fresh meat food up to 10 days or more.
Description
Technical field
The present invention relates to preservation of fishery fields, in particular to a kind of to extend aquatic products shelf based on ultralow isothermal plasma
The method of phase.
Background technique
In the storing and sales process of aquatic products, the pollution and breeding of microorganism and the oxidative rancidity of lipid are to cause
The big factor of the two of its quality decline.And the sterilization fresh-keeping of food can be summarized as thermal sterilization and cold sterilization two ways at present, pass
The heating sterilization of system can reduce the physical and chemical quality and organoleptic quality of food, not be suitable for thermo-responsive product especially.And in recent years,
Plasma sterilization technology has significant advantage particularly with thermal sensitivity food and obtains as a kind of non-thermal sterilization technology
Extensive concern.As patent 201610898085.9 discloses a kind of cold source plasma body cooperative functional polysaccharide raising fresh meat
Sterilization fresh-keeping method, and patent 201710255636.4 disclose it is a kind of that controlled atmosphere technology and Low-temperature Plasma Sterilization is tight
Close combination extends the shelf life of meat product.Currently, most of designed plasma uses dry air or nitrogen
Ionization generates plasma, but the excitation of nitrogen can discharge a large amount of usually with the fracture of three key of nitrogen-nitrogen in excitation process
Heat, would generally not only make the plasma temperature generated excessively high, while there is also the higher problems of excitation voltage.In order to solve
To the potential impact of food, the invention patent discloses a kind of based on ultralow isothermal plasma extension aquatic products goods the high temperature of generation
The method of frame phase can extend the shelf life of aquatic products up to 10 days or more.
Summary of the invention
In order to overcome the disadvantages mentioned above and deficiency of the prior art, the purpose of the present invention is to provide one kind based on ultralow temperature etc.
The method of ion body extension aquatic products shelf life, can extend aquatic products based food shelf life up to 10 days or more.
The purpose of the present invention is achieved through the following technical solutions:
A method of aquatic products shelf life being extended based on ultralow isothermal plasma, the method includes the steps of:
(1) aquatic products sample is placed in the vacuum chamber of dielectric barrier discharge plasma equipment；The dielectric impedance is put
The plasma source of electro-plasma equipment is liquid nitrogen and liquid oxygen；
(2) start dielectric barrier discharge plasma equipment, wherein voltage range is 20-120kV, and frequency control is
50-60Hz, power control is in 80-500W, gas flow rate 3-25L/min, to aquatic products sample treatment 5-15min；
(3) it is refrigerated after aquatic products sample packed with sealed membrane to treated.
The vacuum degree of the vacuum chamber is 102-103Pa。
The mixed proportion of the liquid nitrogen and liquid oxygen is 1:3-2:1.
Refrigeration described in step (3), specifically, being refrigerated at 1-4 DEG C.
The matter barrier discharge plasma equipment includes vacuum chamber, is relatively set with medium in the vacuum chamber up and down
Barrier layer and lower dielectric barrier, are provided with high-field electrode above the upper dielectric barrier, below lower dielectric barrier
It is provided with lower high-field electrode, UV, visible light lamp is provided with below the upper dielectric barrier, places sample on lower dielectric barrier
Product；The vacuum chamber is connected with liquid nitrogen container and liquid oxygen.
The distance between the upper high-field electrode and lower electrode plate with high voltage are 2.5-6cm.
Compared with prior art, the present invention has the following advantages and beneficial effects:
(1) the method for the present invention is used, the temperature after can control corona treatment controls within 15 DEG C, to food
The qualitative attributes such as color influence very little, especially to the unique advantage of the processing and antistaling of thermal sensitivity food.
(2) the method for the present invention is used, more active material, including ozone, peroxidating are generated using low temperature plasma
The Multiple components such as reactive oxygen species, ultraviolet light, charged particle, photon and high-energy electron including hydrogen, superoxide anion etc., energy
It enough inactivates microorganism, inhibit the advantages such as enzymatic reaction and stabilizing food nutritional ingredient, and dielectric barrier discharge low-temperature plasma
Body can extend meat by the processing of 6min because of the features such as its device is easy, flexible, and the plasma of generation is more uniform, stable
Based food shelf life was up to 10 days or more.
(3) it is controlled between 102-103Pa, largely using certain vacuum degree as plasma exciatiaon environment
The excitation voltage (20-120kV) of plasma is reduced, the danger that high pressure generates is reduced.
Detailed description of the invention
Fig. 1 is the schematic diagram of the dielectric barrier discharge plasma equipment of the embodiment of the present invention.
Specific embodiment
Below with reference to embodiment, the present invention is described in further detail, embodiments of the present invention are not limited thereto.
Embodiment 1
As shown in Figure 1, the matter barrier discharge plasma equipment that the present embodiment uses includes vacuum chamber 4, the vacuum chamber 4
It is interior to be relatively set with dielectric barrier 6 and lower dielectric barrier 14 up and down；The upper dielectric barrier 6 and lower dielectric barrier
14 be cylindrical quartz medium, and the top of the upper dielectric barrier 6 is provided with high-field electrode 5, lower dielectric barrier 14
Lower section is provided with lower high-field electrode 15, and the lower section of the upper dielectric barrier 6 is provided with UV, visible light lamp 7, lower dielectric barrier
14 place sample 8, and lower dielectric barrier 14 and lower high-field electrode 15 are supported by insulating support 9, and the vacuum chamber 4 passes through blender
3 connection liquid nitrogen containers 1 and liquid oxygen tank 2；The vacuum chamber 4 is additionally provided with vent valve 10；The vacuum chamber 4 passes through pressure vacuum gauge 11
With vacuum pump 12；The vacuum chamber 4 is also connect with high voltage power supply 13.
The present embodiment based on ultralow isothermal plasma extend aquatic products shelf life method specifically includes the following steps:
(1) processed cod fillet is placed in pallet；
(2) vacuum systems are adjusted and obtain certain vacuum degree (103Pa), and open ultraviolet lamp environment is killed
Bacterium；
(3) start DBD plasma apparatus, obtain high pressure (80kV) plasma electrical source, frequency control is 50Hz, power
Control carries out the processing of 6min to sample in 500W, gas flow rate 10L/min, meanwhile, pass through computer system control
OES and infrared thermal imager measure the temperature of sample after plasma activated ingredient and corona treatment；This test it is equal from
Sub- gas source is the mixed gas of liquid nitrogen and liquid oxygen, mixed proportion 1:2；
(4) 4 DEG C of storages are carried out after sample packed with sealed membrane to treated.
Cod fillet after liquid nitrogen corona treatment, temperature maintain within 15 DEG C, are then stored at 4 DEG C, shelf life
It extends 10 days.The method of the present embodiment keeps the qualitative attributes such as fillet color preferably, and microbial count is less than national standard rule
It is fixed, and juice loss rate is less, organoleptic quality is kept as more preferably, and fresh-keeping effect is more preferably.
Embodiment 2
The present embodiment based on ultralow isothermal plasma extend aquatic products shelf life method specifically includes the following steps:
(1) processed cod fillet is placed in pallet；
(2) vacuum systems are adjusted and obtain certain vacuum degree (102Pa), and open ultraviolet lamp environment is killed
Bacterium；
(3) start DBD plasma apparatus, obtain high pressure (20kV) plasma electrical source, frequency control is 50Hz, power
Control carries out the processing of 15min to sample in 80W, gas flow rate 25L/min, meanwhile, pass through computer system control
OES and infrared thermal imager measure the temperature of sample after plasma activated ingredient and corona treatment；This test it is equal from
Sub- gas source is the mixed gas of liquid nitrogen and liquid oxygen, mixed proportion 2:1；
(4) 4 DEG C of storages are carried out after sample packed with sealed membrane to treated.
Cod fillet after liquid nitrogen corona treatment, temperature maintain within 15 DEG C, are then stored at 4 DEG C, shelf life
It extends 10 days.The method of the present embodiment keeps the qualitative attributes such as fillet color preferably, and microbial count is less than national standard rule
It is fixed, and juice loss rate is less, organoleptic quality is kept as more preferably, and fresh-keeping effect is more preferably.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by the embodiment
Limitation, other any changes, modifications, substitutions, combinations, simplifications made without departing from the spirit and principles of the present invention,
It should be equivalent substitute mode, be included within the scope of the present invention.
Claims (8)
1. a kind of method for extending aquatic products shelf life based on ultralow isothermal plasma, which is characterized in that this method includes following
Step:
(1) aquatic products sample is placed in the vacuum chamber of dielectric barrier discharge plasma equipment；Described dielectric barrier discharge etc.
The plasma source of gas ions equipment is liquid nitrogen and liquid oxygen；
(2) start dielectric barrier discharge plasma equipment, wherein voltage range is 20-120kV, and frequency control is 50-
60Hz, power control is in 80-500W, gas flow rate 3-25L/min, to aquatic products sample treatment 5-15min；
(3) it is refrigerated after aquatic products sample packed with sealed membrane to treated.
2. the method according to claim 1 for extending aquatic products shelf life based on ultralow isothermal plasma, which is characterized in that
The vacuum degree of the vacuum chamber is 102-103Pa。
3. the method according to claim 1 for extending aquatic products shelf life based on ultralow isothermal plasma, which is characterized in that
The mixed proportion of the liquid nitrogen and liquid oxygen is 1:3-2:1.
4. the method according to claim 1 for extending aquatic products shelf life based on ultralow isothermal plasma, which is characterized in that
Refrigeration described in step (3), specifically, being refrigerated at 1-4 DEG C.
5. the method according to claim 1 for extending aquatic products shelf life based on ultralow isothermal plasma, which is characterized in that
The matter barrier discharge plasma equipment includes vacuum chamber, in the vacuum chamber up and down be relatively set with dielectric barrier and
Lower dielectric barrier is provided with high-field electrode above the upper dielectric barrier, is provided with down below lower dielectric barrier
High-field electrode is provided with UV, visible light lamp below the upper dielectric barrier, places sample on lower dielectric barrier；It is described true
Empty room is connected with liquid nitrogen container and liquid oxygen.
6. the method according to claim 5 for extending aquatic products shelf life based on ultralow isothermal plasma, which is characterized in that
The distance between the upper high-field electrode and lower electrode plate with high voltage are 2.5-6cm.
7. the method according to claim 5 for extending aquatic products shelf life based on ultralow isothermal plasma, which is characterized in that
The upper dielectric barrier is cylindrical quartz medium.
8. the method according to claim 5 for extending aquatic products shelf life based on ultralow isothermal plasma, which is characterized in that
The lower dielectric barrier is cylindrical quartz medium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811112653.3A CN109006966A (en) | 2018-09-21 | 2018-09-21 | A method of aquatic products shelf life is extended based on ultralow isothermal plasma |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811112653.3A CN109006966A (en) | 2018-09-21 | 2018-09-21 | A method of aquatic products shelf life is extended based on ultralow isothermal plasma |
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| CN109006966A true CN109006966A (en) | 2018-12-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811112653.3A Pending CN109006966A (en) | 2018-09-21 | 2018-09-21 | A method of aquatic products shelf life is extended based on ultralow isothermal plasma |
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| Country | Link |
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| CN (1) | CN109006966A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111066871A (en) * | 2019-12-26 | 2020-04-28 | 河南科技学院 | Continuous low-temperature plasma sterilization device for fish surface |
| 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 |
| NO20191107A1 (en) * | 2019-09-13 | 2021-03-15 | Yonder As | Energy control |
| CN113826842A (en) * | 2021-08-24 | 2021-12-24 | 浙江海洋大学 | Preparation and fresh-keeping method of instant drunk shrimp can |
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| CN107148139A (en) * | 2017-05-22 | 2017-09-08 | 苏州屹润食品科技有限公司 | A kind of cold sterilization excitation apparatus of high voltage electric field low temperature plasma |
| CN107223845A (en) * | 2017-06-12 | 2017-10-03 | 浙江海洋大学 | A kind of crab pastes sterilization fresh-keeping method |
-
2018
- 2018-09-21 CN CN201811112653.3A patent/CN109006966A/en active Pending
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| NO20191107A1 (en) * | 2019-09-13 | 2021-03-15 | Yonder As | Energy control |
| CN111066871A (en) * | 2019-12-26 | 2020-04-28 | 河南科技学院 | Continuous low-temperature plasma sterilization device for fish surface |
| CN113826842A (en) * | 2021-08-24 | 2021-12-24 | 浙江海洋大学 | Preparation and fresh-keeping method of instant drunk shrimp can |
| CN113826842B (en) * | 2021-08-24 | 2024-06-07 | 浙江海洋大学 | Preparation and fresh-keeping method of instant drunk shrimp can |
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