CN110050828A - The carbon dioxide air regulating fresh-keeping method of citrus - Google Patents
The carbon dioxide air regulating fresh-keeping method of citrus Download PDFInfo
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- CN110050828A CN110050828A CN201910409647.2A CN201910409647A CN110050828A CN 110050828 A CN110050828 A CN 110050828A CN 201910409647 A CN201910409647 A CN 201910409647A CN 110050828 A CN110050828 A CN 110050828A
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- citrus
- obturator
- fruit
- carbon dioxide
- controlled atmosphere
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- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 57
- 238000000034 method Methods 0.000 title claims abstract description 41
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims abstract description 31
- 239000001569 carbon dioxide Substances 0.000 title claims abstract description 27
- 235000020971 citrus fruits Nutrition 0.000 title claims abstract description 24
- 241000207199 Citrus Species 0.000 title claims abstract description 23
- 230000001105 regulatory effect Effects 0.000 title claims abstract description 15
- 235000013399 edible fruits Nutrition 0.000 claims abstract description 55
- 238000004320 controlled atmosphere Methods 0.000 claims abstract description 36
- 239000002985 plastic film Substances 0.000 claims abstract description 16
- 229920006255 plastic film Polymers 0.000 claims abstract description 16
- 238000012360 testing method Methods 0.000 claims abstract description 12
- 230000008569 process Effects 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims abstract description 8
- 238000013461 design Methods 0.000 claims abstract description 6
- 239000007789 gas Substances 0.000 claims description 35
- 241001672694 Citrus reticulata Species 0.000 claims description 27
- 229960004424 carbon dioxide Drugs 0.000 claims description 26
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 11
- 239000001301 oxygen Substances 0.000 claims description 11
- 229910052760 oxygen Inorganic materials 0.000 claims description 11
- 230000001954 sterilising effect Effects 0.000 claims description 10
- 230000004103 aerobic respiration Effects 0.000 claims description 8
- 238000004659 sterilization and disinfection Methods 0.000 claims description 6
- 230000036387 respiratory rate Effects 0.000 claims description 3
- 241000271165 Aurantioideae Species 0.000 claims description 2
- 235000017317 Fortunella Nutrition 0.000 claims description 2
- 241001523486 Poncirus Species 0.000 claims description 2
- 229910002090 carbon oxide Inorganic materials 0.000 claims description 2
- 239000004615 ingredient Substances 0.000 claims description 2
- 238000007781 pre-processing Methods 0.000 claims description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 10
- 230000000694 effects Effects 0.000 description 9
- 235000019441 ethanol Nutrition 0.000 description 9
- 238000004321 preservation Methods 0.000 description 8
- 230000004099 anaerobic respiration Effects 0.000 description 6
- 229920003188 Nylon 3 Polymers 0.000 description 5
- 230000029058 respiratory gaseous exchange Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 230000005855 radiation Effects 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000036284 oxygen consumption Effects 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 230000005068 transpiration Effects 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 241000607479 Yersinia pestis Species 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 241000411851 herbal medicine Species 0.000 description 2
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 2
- 208000020442 loss of weight Diseases 0.000 description 2
- 230000004060 metabolic process Effects 0.000 description 2
- 230000003020 moisturizing effect Effects 0.000 description 2
- 235000016709 nutrition Nutrition 0.000 description 2
- 230000035764 nutrition Effects 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 230000032258 transport Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 240000002319 Citrus sinensis Species 0.000 description 1
- 235000005976 Citrus sinensis Nutrition 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 241000220324 Pyrus Species 0.000 description 1
- IKHGUXGNUITLKF-XPULMUKRSA-N acetaldehyde Chemical compound [14CH]([14CH3])=O IKHGUXGNUITLKF-XPULMUKRSA-N 0.000 description 1
- 239000003242 anti bacterial agent Substances 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- 229940088710 antibiotic agent Drugs 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- UBAZGMLMVVQSCD-UHFFFAOYSA-N carbon dioxide;molecular oxygen Chemical compound O=O.O=C=O UBAZGMLMVVQSCD-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 235000012055 fruits and vegetables Nutrition 0.000 description 1
- 230000035784 germination Effects 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000004310 lactic acid Substances 0.000 description 1
- 235000014655 lactic acid Nutrition 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 235000021017 pears Nutrition 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000009758 senescence Effects 0.000 description 1
- 239000011232 storage material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 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
- A23B7/00—Preservation or chemical ripening of fruit or vegetables
- A23B7/14—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10
- A23B7/144—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10 in the form of gases, e.g. fumigation; Compositions or apparatus therefor
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Storage Of Fruits Or Vegetables (AREA)
Abstract
The invention discloses the carbon dioxide air regulating fresh-keeping methods of citrus, after should be the following steps are included: citrus be pre-processed, it is put into progress controlled atmosphere parameter testing in the obturator being protected from light under normal temperature environment, it will need to carry out after fresh-keeping citrus pre-processes, it is placed in the obturator being protected from light, it adjusts and gas concentration lwevel stands storage, keep gas concentration lwevel within the above range in storage within the scope of the resulting optimum of controlled atmosphere parameter testing in holding meanss；The obturator is made of setting bracket and plastic film；Setting bracket is the skeleton of obturator, is first barricaded as certain shape；Plastic film is wrapped on setting bracket, is finally sutured plastic film with a sealing and is sealed；Design has airtight zipper and gas nozzle on plastic film.It the present invention provides the carbon dioxide air regulating fresh-keeping method of citrus, only need to be just able to achieve under normal temperature environment to the fresh-keeping of fruit, Environmentally-frielow-energy-consumptipolycarboxylic low-energy-consumptipolycarboxylic and highly-safe helps to extend the shelf time and keeps fruit freshness.
Description
Technical field
The invention belongs to field of fruit freshness keeping, are related to the carbon dioxide air regulating fresh-keeping method of citrus.
Background technique
Fruit is not only full of nutrition, and has the effects that anti-aging, weight-reducing.It is still being exhaled after fruit harvesting
Suction effect and transpiration cause the intracorporal storage material of fruit gradually to decompose；Transpiration also makes moisture loss, and weight subtracts
Gently, fruit surface is easily infected by spoilage organisms and leads to rotting for fruit while in storage transport, so make shelf life and
Storage time shortens, totally unfavorable to storing and transporting.
Currently, mainly having coating method, drug-treated, coating method, refrigeration and controlled atmosphere fresh-keeping method for the preservation method of fruit
Deng.Wherein, air conditioned storage is considered as one of most effective state-of-the-art fruit and vegetable preserving method in the world.
Controlled atmosphere method be by artificially adjusting oxygen and gas concentration lwevel in closed environment, control in environment gas at
Point, so that fruit is carried out faint aerobic respiration without anaerobic respiration, slows down fruits nutrition material consumption, to delay senescence
With rot, so that it is kept fresh and ready state long as far as possible.And different types of fruits is to the gas componant of controlled atmosphere
It is required that being also not quite similar, for carbon dioxide controlled atmosphere is fresh-keeping, is shown according to the related institutional research data in China, store the two of pears
Carbonoxide requirement is 10%, and the carbon dioxide specification for storing sweet orange is 6%, and different types of fruits protects carbon dioxide controlled atmosphere
Fresh concentration requires different.But the theoretical basis of controlled atmosphere is all by restraining or delaying the respiration of fruit, rising work
With etc. vital movements slow down its metabolic processes, fruit is all the inspiration O from air in breathing2, discharge CO2, from change
For learning mechanism, breathing is exactly slow oxidation process, in order to inhibit the respiratory intensity of veterinary antibiotics, slows down its metabolism
Process prevents germination, slows down maturing process, therefore uses and improve CO2Content reduces O2Content, and make CO2And O2It is opposite to be stable at
Under certain ratio, furthermore, CO2Also there is bacteriostasis, the procreation of microbial bacterial can be inhibited.
Chinese patent application CN 107637656A discloses a kind of fruit preservation method, after fruit is sterilized, in immersion
It is handled in herbal medicine antistaling agent, is finally placed in 10-16 DEG C of temperature, humidity 80-85%, gas concentration lwevel≤400ppm air reservoir again
Middle storage.The method of the patent is not actually simple controlled atmosphere, and the means for having also combined fresh chemically (use
Chinese herbal medicine preservative), and also need to control the temperature and humidity of air reservoir in storage, this obviously increases the preservation method
Cost.
Chinese patent application CN 102793001A discloses a kind of air regulating fresh-keeping method of fruit, is used for fresh-keeping gas
Body composition is: nitrogen gas concn 85-95%, oxygen 1-8%, carbon dioxide 1-6%.Need to use nitrogen, oxygen, carbon dioxide three
Kind gas, has aggravated the difficulty and cost of regulating gas composition.In addition, must also be sent into refrigeration after regulating the qi flowing in the channels, operating procedure is a lot of, adds
Big cost.
Chinese patent application CN 106912564A discloses the preservation method in a kind of fruits logistics transportational process, nothing
It need to control or refrigerate, carbon dioxide mass fraction is 80-100%.But after gas concentration lwevel is excessively high, fruit anaerobic can be aggravated and exhaled
It inhales, generates a large amount of alcohol, so that fruit generates vinosity, accelerate to rot.In addition, the patent does not disclose its method suitable for which
Specific types of fruits, also without related fresh-keeping effect experimental data, how much the practicality, which makes one, is left a question open.
Summary of the invention
In order to solve in existing air regulating fresh-keeping method, gas composition is complicated, must be in conjunction with carrying out the technological deficiency such as refrigerating, this
The carbon dioxide air regulating fresh-keeping method for being designed to provide citrus of invention, with Environmentally-frielow-energy-consumptipolycarboxylic low-energy-consumptipolycarboxylic, highly-safe, fresh-keeping effect
The features such as fruit is good.
The purpose of the invention is achieved by the following technical solution:
The carbon dioxide air regulating fresh-keeping method of citrus, comprising the following steps:
(1) after pre-processing citrus, it is put under normal temperature environment progress controlled atmosphere parameter testing in obturator, is obtained best
Gas concentration lwevel range；
(2) it after fresh-keeping citrus being needed to pre-process, is placed in obturator, adjusts carbon dioxide in simultaneously holding meanss
Concentration stands storage in the optimum range that step (1) obtains；
The controlled atmosphere parameter testing, which refers to, increases gas concentration lwevel from low to high, stage by stage to adjust in obturator
Gas componant, change carbon dioxide and oxygen concentration, obtain respiratory rate of the fruit under different controlled atmosphere concentration levels and with
Minimum aerobic respiration level is the optimal carbon dioxide controlled atmosphere parameter of Target Acquisition；
The optimum range refers to the minimum carbon dioxide controlled atmosphere parameter of fruit aerobic respiration rate.
The citrus refers to the fruit of Rutaceae Aurantioideae, specifically includes the fruit of Poncirus, Citrus and Fortunella；
The citrus refers to emperor mandarin orange, Xinhui citrus reticulata, four meeting mandarin oranges, tangerine in October, tangerine in August, etc.；
The pretreatment includes precooling and sterilization；
The precooling is freezed 2 hours at 10 DEG C；
The preferred ultraviolet irradiation sterilization of the sterilization.
The obturator is made of setting bracket and plastic film；The setting bracket is the bone of obturator
Frame is first barricaded as certain shape, such as cuboid or cube as needed；The plastic film is wrapped in setting bracket
On, finally plastic film is sutured with a sealing and is sealed；
Design has airtight zipper on the plastic film, for picking and placing fruit from obturator；
Design has gas nozzle on the plastic film, for the inflation/deflation of obturator, to adjust the gas in obturator
Body atmosphere.
In the obturator, other than the carbon dioxide added into, other gas componants be air it is original at
Point；
The described standing storage can carry out at room temperature, and fresh-keeping effect is more preferable at 25 DEG C or less, 0 DEG C or more.
The present invention has the following advantages and effects with respect to the prior art:
1, the present invention provides the carbon dioxide air regulating fresh-keeping methods of citrus, only need to just be able to achieve under normal temperature environment to water
Fresh-keeping, the Environmentally-frielow-energy-consumptipolycarboxylic low-energy-consumptipolycarboxylic and highly-safe of fruit helps to extend the shelf time and keeps fruit freshness.
2, citrus carbon dioxide air regulating fresh-keeping method of the invention, using the airtight zipper of plastic film collocation and setting bracket
Made of repeat open and close type obturator, it is cheap and can realize high effective sealing function and repeatable multiple opening and closing function
Can, utilization rate is high；In preservation process, by establishing moisturizing environment, and realizes and unpack and take a breath under moisturizing state.
3, in the present invention, increase gas concentration lwevel stage by stage and test to obtain most with the gas componant adjusted in obturator
Good controlled atmosphere parameter, and join for temperature, humidity, alcohol concentration, oxygen concentration, the gas concentration lwevel etc. during controlled atmosphere
Number carries out comprehensive preservation research using automatic control system and big data thought, more fully meticulously to the fresh-keeping of fruit
Situation carries out control, of good preservation effect for citrus fruits such as the emperor mandarin oranges of selection.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of obturator of the present invention；Wherein, 1- is sealed, the airtight zipper of 2-, 3- plastic film, 4-
Setting bracket, 5- gas nozzle.
Fig. 2 is the oxygen consumption time graph (thick line) and alcohol concentration curve (filament) of emperor mandarin orange.
Specific embodiment
Present invention will now be described in further detail with reference to the embodiments and the accompanying drawings, but embodiments of the present invention are unlimited
In this.
The fruit that embodiment uses is the emperor mandarin orange for picking up from Guangdong Deqing, selects band carpopodium, without machinery wound, no disease and pests harm fruit
Real sleeving plastic film vanning, adopts in rear 12h and transports to laboratory, trim carpopodium；Sealing device material therefor can pass through public affairs
Channel is bought altogether, and kind employed in technique and material are that this field is common；Controlled atmosphere uses SCM Based
Fruit preserving box information collection and control system are this laboratory research result, have obtained National Copyright Administration of the People's Republic of China
The Copyright in Computer Software certificate of registration (registration number: 2018SR170738) simultaneously comes into operation.
Embodiment
The carbon dioxide air regulating fresh-keeping method of emperor mandarin orange, comprising the following steps:
(1) the emperor mandarin orange almost the same with pest and disease damage, apparent size that have no mechanical damage is selected；The fruit selected trims
Carpopodium does not carry branches and leaves；
(2) progress controlled atmosphere ginseng in obturator is put under normal temperature environment after carrying out precooling treatment and radiation sterilizing to emperor mandarin orange
Number test；
Precooling treatment is specifically: 10 DEG C are carried out fast precooling 2 hours in the device with the water filling ice bag for completing freezing,
Eliminate fruit field heat；Radiation sterilizing specifically: fruit is carried out radiation sterilizing 2 hours using ultraviolet lamp；Normal temperature environment is specific
For the without sunlight direct projection environment at a temperature of 25 DEG C；
The obturator is made of metal pipe holder 4 and 16 thread nylon 3；The metal pipe holder 4 is closed dress
The skeleton set, is first barricaded as rectangular shape；16 nylon 3 are wrapped on metal pipe holder 4, finally will with a sealing 1
16 suture sealings of nylon 3；Design has the airtight watertight waterproof slide fastener 2 of No. 8 nylon on 16 nylon 3, is used for from closed
Fruit is picked and placed in device；Design has gas nozzle 5 on 16 nylon 3, for the inflation/deflation of obturator, to adjust closed dress
Set interior atmosphere.
Controlled atmosphere parameter test method: increase gas concentration lwevel stage by stage from low to high to adjust the gas in obturator
Ingredient changes carbon dioxide and oxygen concentration, obtains respiratory rate of the fruit under different controlled atmosphere concentration levels and has with minimum
Horizontal oxygen breathing is the optimal carbon dioxide controlled atmosphere parameter of Target Acquisition.
In the present embodiment, specific controlled atmosphere parameter testing situation is as shown in table 1:
1 CO of table2Initial concentration grouping sheet
Test item and method explanation: to consume 1%vol O2The required time measures the breathing situation of emperor mandarin orange.
In the same experimental provision, different gas concentration lwevel initial ranges is set, real time monitoring controlled atmosphere parameter testing was tested
Oxygen and changes of concentrations of carbon dioxide data in journey measured under different gas concentration lwevels, disappear within the identical stable time
Consume 1%vol O2The required time.It is reduced as gas concentration lwevel is increased with oxygen concentration, fruit progresses into anaerobic and exhales
It inhales, adjusts and monitor the anaerobic respiration situation of fruit using the alcohol situation of change that fruit itself generates, monitor in real time and obtain
The alcohol concentration value for taking the corresponding value moment judges the anaerobic respiration situation of fruit according to the situation of change of alcohol concentration.
Experimental result is as shown in table 2, Fig. 2.
2 emperor's mandarin orange oxygen consumption experimental data table of table
Controlled atmosphere parameter testing experimental result and analysis: according to table 2 and Fig. 2's as a result, with gas concentration lwevel increase
And the reduction of oxygen concentration, emperor mandarin orange consume 1%vol O2The required time gradually increases, illustrate aerobic respiration rate by
It is decrescence weak.The Biological Principles of this and plant meet, and illustrate that the experiment of this controlled atmosphere follows biological regularity and utilizes biology
It is accurate for learning the experimental considerations of rule.
When gas concentration lwevel increases to 35~45%, emperor's mandarin orange oxygen consumption time is longer and alcohol concentration variation is small, at this time
The aerobic respiration rate that emperor's mandarin orange aerobic respiration rate is compared when being less than this gas concentration lwevel is small, and when gas concentration lwevel increases
When adding to greater than 35~45%, alcohol concentration variation is gradually increased, and anaerobic respiration starts to enhance.And anaerobic respiration is exhaled than aerobic
The substrate of respiration of more 28 times of consumption is inhaled, and is accompanied by acetaldehyde, lactic acid in the generating process of its halfway decomposition product ethyl alcohol
Generation, these substances have great toxic action to agricultural product, are unfavorable for agricultural products fresh-keeping.Therefore, titanium dioxide is continued growing
Concentration of carbon cannot cause oxygen too low and emperor's mandarin orange anaerobic respiration is made to occupy leading position.
According to experimental result, it is optimal that emperor mandarin orange controlled atmosphere, which controls gas concentration lwevel 35~45%,.
Comparative example
After the emperor mandarin orange of comparative example equally carries out precooling treatment and radiation sterilizing, fruit is placed in refrigerator (4 DEG C) by one group,
Another group is placed in fruit under normal temperature environment.
The emperor mandarin orange of embodiment (controlling gas concentration lwevel 35~45%) and comparative example stands 15 days, controlled atmosphere
The results are shown in Table 3:
The fruit of embodiment utilizes the moisture adapting device of the transpiration generation of fruit itself during controlled atmosphere
Sealing performance to reach and maintain higher fresh-keeping environments humidity, relative humidity is greater than 80%RH, and humidity is higher and generates
Dew condensation phenomenon is less, meets fruit freshness preserving requirement.
3 emperor's mandarin orange controlled atmosphere experimental result data table of table
As can be seen from Table 3, controlled atmosphere group (embodiment) fruit loss of weight relative percentage is minimum, and the ratio of loss of weight is small
1/6 under room temperature, less than 1/3 in refrigerator, peculiar smell fruit number is minimum, the humidity highest in obturator, to fruit freshness preserving
Effect it is best, therefore this controlled atmosphere experimental method has an apparent preservation, and is extending the shelf time, keeps emperor mandarin orange
The effect of freshness etc. is significant.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described 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 (9)
1. the carbon dioxide air regulating fresh-keeping method of citrus, it is characterised in that the following steps are included:
(1) after pre-processing citrus, it is put under normal temperature environment progress controlled atmosphere parameter testing in obturator, obtains optimal two
Carbonoxide concentration range；
(2) it after fresh-keeping citrus being needed to pre-process, is placed in obturator, adjusts gas concentration lwevel in simultaneously holding meanss
In the optimum range that step (1) obtains, storage is stood；
The controlled atmosphere parameter testing, which refers to, increases gas concentration lwevel from low to high, stage by stage to adjust the gas in obturator
Body ingredient changes carbon dioxide and oxygen concentration, obtains respiratory rate of the fruit under different controlled atmosphere concentration levels and with minimum
Aerobic respiration level is the optimal carbon dioxide controlled atmosphere parameter of Target Acquisition；
The optimum range refers to the minimum carbon dioxide controlled atmosphere parameter of fruit aerobic respiration rate；
The obturator is made of setting bracket and plastic film；The setting bracket is the skeleton of obturator, first
It is barricaded as certain shape；The plastic film is wrapped on setting bracket, is finally sutured plastic film with a sealing and is sealed；
Design has airtight zipper and gas nozzle on the plastic film.
2. according to the method described in claim 1, it is characterized by: the citrus refers to the fruit of Rutaceae Aurantioideae.
3. according to the method described in claim 1, it is characterized by: the citrus includes Poncirus, Citrus and Fortunella
Fruit.
4. according to the method described in claim 1, it is characterized by: the citrus refer to emperor mandarin orange, Xinhui citrus reticulata, four can mandarin oranges,
October tangerine, tangerine in August.
5. according to the method described in claim 1, it is characterized by: the pretreatment includes precooling and sterilization.
6. according to the method described in claim 5, it is characterized by: the precooling is freezed 2 hours at 10 DEG C.
7. according to the method described in claim 5, it is characterized by: the sterilization is ultraviolet irradiation sterilization.
8. according to the method described in claim 1, it is characterized by: the standing storage is to carry out at room temperature.
9. according to the method described in claim 1, it is characterized by: the standing storage is in 25 DEG C or less, 0 DEG C with enterprising
Row.
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| CN201910409647.2A CN110050828A (en) | 2019-05-17 | 2019-05-17 | The carbon dioxide air regulating fresh-keeping method of citrus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114194624A (en) * | 2020-09-17 | 2022-03-18 | 广西师范大学 | Novel oranges and tangerines preservation box |
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| CN103349061A (en) * | 2013-07-12 | 2013-10-16 | 天津商业大学 | Ice temperature combined freshness protection method for modified atmosphere storage of fruits and vegetables |
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| CN106912564A (en) * | 2015-12-25 | 2017-07-04 | 贵州苗都现代医药物流经营有限公司 | A kind of preservation method in fruits logistics transportation |
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