CN106689348A - Controlled-atmosphere fruit and vegetable transportation and preservation method utilizing dry ice - Google Patents
Controlled-atmosphere fruit and vegetable transportation and preservation method utilizing dry ice Download PDFInfo
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- CN106689348A CN106689348A CN201710003307.0A CN201710003307A CN106689348A CN 106689348 A CN106689348 A CN 106689348A CN 201710003307 A CN201710003307 A CN 201710003307A CN 106689348 A CN106689348 A CN 106689348A
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- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 124
- 235000012055 fruits and vegetables Nutrition 0.000 title claims abstract description 120
- 235000011089 carbon dioxide Nutrition 0.000 title claims abstract description 97
- 238000004320 controlled atmosphere Methods 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 33
- 238000004321 preservation Methods 0.000 title claims abstract description 16
- 230000029058 respiratory gaseous exchange Effects 0.000 claims abstract description 10
- 239000006260 foam Substances 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims description 20
- 230000000694 effects Effects 0.000 claims description 16
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 14
- 239000001569 carbon dioxide Substances 0.000 claims description 13
- 238000003306 harvesting Methods 0.000 claims description 9
- 235000013399 edible fruits Nutrition 0.000 claims description 8
- 235000013311 vegetables Nutrition 0.000 claims description 6
- 230000032683 aging Effects 0.000 claims description 5
- 238000004378 air conditioning Methods 0.000 claims description 5
- 230000006866 deterioration Effects 0.000 claims description 4
- 238000013016 damping Methods 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims description 3
- 230000008719 thickening Effects 0.000 claims description 3
- 230000001934 delay Effects 0.000 claims description 2
- 230000002401 inhibitory effect Effects 0.000 abstract description 2
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 22
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 7
- 239000001301 oxygen Substances 0.000 description 7
- 229910052760 oxygen Inorganic materials 0.000 description 7
- 230000032258 transport Effects 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 235000009754 Vitis X bourquina Nutrition 0.000 description 3
- 235000012333 Vitis X labruscana Nutrition 0.000 description 3
- 240000006365 Vitis vinifera Species 0.000 description 3
- 235000014787 Vitis vinifera Nutrition 0.000 description 3
- 230000001143 conditioned effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 230000002269 spontaneous effect Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 241000167854 Bourreria succulenta Species 0.000 description 2
- 240000008067 Cucumis sativus Species 0.000 description 2
- 235000010799 Cucumis sativus var sativus Nutrition 0.000 description 2
- 235000019693 cherries Nutrition 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 240000006108 Allium ampeloprasum Species 0.000 description 1
- 235000005254 Allium ampeloprasum Nutrition 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 244000307700 Fragaria vesca Species 0.000 description 1
- 235000016623 Fragaria vesca Nutrition 0.000 description 1
- 235000011363 Fragaria x ananassa Nutrition 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000001766 physiological effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000000859 sublimation Methods 0.000 description 1
- 230000008022 sublimation Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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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
- 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
- A23B7/148—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 in a controlled atmosphere, e.g. partial vacuum, comprising only CO2, N2, O2 or H2O
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/18—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/24—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants
- B65D81/26—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators
- B65D81/264—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators for absorbing liquids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
- B65D85/50—Containers, packaging elements or packages, specially adapted for particular articles or materials for living organisms, articles or materials sensitive to changes of environment or atmospheric conditions, e.g. land animals, birds, fish, water plants, non-aquatic plants, flower bulbs, cut flowers or foliage
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- Food Science & Technology (AREA)
- Chemical & Material Sciences (AREA)
- Zoology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Wood Science & Technology (AREA)
- General Chemical & Material Sciences (AREA)
- Polymers & Plastics (AREA)
- Health & Medical Sciences (AREA)
- Evolutionary Biology (AREA)
- General Health & Medical Sciences (AREA)
- Marine Sciences & Fisheries (AREA)
- Toxicology (AREA)
- Packages (AREA)
- Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)
- Storage Of Fruits Or Vegetables (AREA)
Abstract
The invention discloses a controlled-atmosphere fruit and vegetable transportation and preservation method utilizing dry ice. The method comprises the steps that harvested fruits and vegetables are organized and sorted and then are put in controlled-atmosphere preservation bags; the dry ice is put into dry ice layers of the controlled-atmosphere preservation bags, and the bags are rapidly sealed and then are put into conventional foam box for transportation. The controlled-atmosphere preservation bags are divided into fruit and vegetable placement layers and dry ice placement layers, the two layers are connected in a heat seal mode to make the fruits and vegetables not in contact with the dry ice, and fruit and vegetable and dry ice placement vent holes are left in the connecting parts and used for air exchange of two layers. The method can prolong the fruit and vegetable preservation time by reducing the fruit and vegetable temperature and inhibiting fruit and vegetable respiration, meanwhile mechanical fruit and vegetable damages caused by jolting in the transportation process are decreased, the fruit and vegetable quality is improved, and the market demand is met.
Description
Technical field
The present invention relates to fruit and vegetable storage and transportation technical field, the fruit and vegetable controlled atmosphere transportation fresh-retaining of more particularly to a kind of utilization dry ice
Method.
Background technology
Fruit-vegetable quality deterioration main cause has：Respiration, evapotranspiration, microbial action, mechanical damage.Adopt rear fruits and vegetables
It is a life entity, still in the activity of carrying out, respiration still plays an important role cell, promotes the nutriment quilt of fruits and vegetables
Consumption, absorbs the gases such as O2 releases CO2, while producing heat and moisture, causes fruits and vegetables to rot and rotten.
Low temperature can reduce the physiological activity of fruits and vegetables, and the activity of inhibitory enzyme is suppressed growth of microorganism and bred, and reduce moisture
Evaporation, reduces weightlessness, is the key factor of post-harvest fresh-keeping technology.In transportation influence fruits and vegetables temperature mainly have harvesting after itself
The heat that the field heat of presence, the respiration heat of fruits and vegetables and environment penetrate into.Precooling is taken to reduce field in post-harvest fresh-keeping technology
Heat, prevents amount of heat from being delivered to fruits and vegetables by insulating packaging material.
Traditional storage fruit and vegetable method has simple storage, ventilation storehouse storage, radiation preservation, fresh chemically, freezer to store
Hide.Simply preserve, ventilation storehouse storage facilities is simple, small investment, but storage effect is poor, and storage period is short, rots to lose seriously.Radiation
And fresh chemically has certain applicability on Some Fruits, but there is radiation and chemical residual pollution, not all fruits and vegetables can
Using.Air conditioned storage is the modernization preservation technique grown up on the basis of traditional cold storing and fresh-keeping, it is considered to be current storage
The best storage method of water fruit effect.Air conditioning technology includes mechanical controlled atmosphere and spontaneous controlled-atmosphere two ways both at home and abroad at present.Machine
Tool controlled atmosphere cold is current state-of-the-art fruit and vegetable fresh preservation freezer, and it is on the basis of cold storing and fresh-keeping, to increase gas componant
The equipment of regulation, by the control to the condition such as temperature, humidity, carbon dioxide, oxygen concentration and ethylene concentration in storage environment,
Suppress fruits and vegetables respiration, delay its metabolic processes, preferably keep fruits and vegetables freshness and commodity, extend fruit vegetables storing
Phase and sale shelf life, usual air conditioned storage can extend 2-3 times of storage period than common refrigeration, but controlled atmosphere cold has shortcoming：Controlled atmosphere
Storehouse is applied to large enterprise, and input is high, and high cost, maintenance cost is high, and applicable surface is not popularized.Spontaneous controlled-atmosphere refers to seal fruits and vegetables
In the bag or account that the plastic sheeting with specific gas permeability energy is made, dropped using the respiration for storing object-fruits and vegetables itself
Oxygen concentration in low storage ambient, while improving gas concentration lwevel, is allowed to meet the requirement of air conditioned storage, so as to extend fruit
The storage method of vegetable storage period, oxygen content is 20.9% in normal atmosphere, and carbon dioxide content is 0.03%, and in theory, fruits and vegetables have
Oxygen is consumed in oxygen respiratory, carbon dioxide is produced, and nitrogen then keeps constant, spontaneous controlled-atmosphere storage storage low cost, behaviour
Make simple, but the time reached needed for setting oxygen and carbon dioxide concentration levels is more long, the more difficult oxygen for maintaining to require in operation
Gas and gas concentration lwevel, thus hoarding effect has gap with mechanical controlled atmosphere.
Mechanical damage is the one of the main reasons that fruits and vegetables rot to degenerate in transporting procedures, it is estimated that, due to transportation
The postharvest fruit and vegetable loss that middle mechanical damage is caused reaches 25-45%.It has been generally acknowledged that the vibration in transportation is to cause fruits and vegetables machinery to damage
The main cause of wound.The mechanical damage that Transport Vibration is caused has a strong impact on the outward appearance of fruits and vegetables, and causes fruits and vegetables in storage
Moisture loss and tissue rot, and then influence the quality of fruit.
At present, fresh vegetable and fruit packaging typically all uses on the rocks in outer foam case and case in transport particularly electric business logistics
The preservation method of bag, also without the controlled atmosphere technical method for taking into account cooling, buffering in a kind of transportation for fruits and vegetables simultaneously.
The content of the invention
The technical problem to be solved in the present invention is to provide one kind and can be changed package interior gas while fruits and vegetables temperature is reduced
Body component ratio, also has bumper and absorbing shock function, the method for realizing fruit and vegetable air-conditioning preservation technology in structure.
In order to solve the above-mentioned technical problem, the present invention is achieved through the following technical solutions：
A kind of controlled atmosphere transportation fresh-retaining method of the fruit and vegetable of utilization dry ice, it is characterised in that carried out by the steps：
（1）Fruit and vegetable after harvesting is put into air-adjustable fresh-keeping bag fruits and vegetables placed layer after arranging sorting, is sealed；
（2）A certain amount of dry ice is put into air-adjustable fresh-keeping bag dry ice placed layer, is sealed；
（3）Load usual foam case after rapid sealing to be transported；The computing formula of wherein a certain amount of dry ice usage amount
It is as follows；
The described fresh-keeping computing formula of dry ice pre-refrigerating multi-kind airIt is using different fruit and vegetables
Preservation temperature, carbon dioxide gas degree of thickening, three variables of fruit and vegetable loading amount calculate a kind of calculating public affairs for obtaining dry ice usage amount
Formula.This formula is obtained via experiment is repeated.
The present invention further discloses the air-adjustable fresh-keeping bag of the controlled atmosphere transportation fresh-retaining method of the fruit and vegetable using dry ice, its
It is characterised by being divided into fruits and vegetables placed layer and dry ice placed layer, heat seal connection, is not directly contacted with fruits and vegetables and dry ice between two-layer；Even
Fruits and vegetables are left on socket part position and dry ice places passage 4 and is used for gas exchanges between two-layer.Fruits and vegetables and dry ice placed layer connecting portion
Passage is left on position, aperture is that, less than 1cm, number is not limited.The material of freshness protection package is plastics.
Fruits and vegetables placed layer of the present invention includes first half freshness protection package 3 and first half freshness protection package sealing 7, and effect is
For fruits and vegetables provide independent controlled atmospheric packing；Described dry ice placed layer includes lower half dry ice bag sealing 5 and lower half dry ice bag
6, effect is that dry ice is not directly contacted with fruits and vegetables；The gentle On The Drug Release dry ice of dry ice placed layer storage, the carbon dioxide of generation is released
Fruits and vegetables placed layer in freshness protection package is put into, the carbon dioxide content in freshness protection package is maintained controlled atmosphere concentration, reached in transportation
To the effect of fruit and vegetable air-conditioning preservation.When dry ice is in liter Huawei's gas in dry ice placed layer, portion is taken away from fruits and vegetables in freshness protection package
Divide heat, reduce the temperature of fruits and vegetables in transportation, delay fruits and vegetables aging deterioration.
In a liter gas for Huawei's certain volume, this gas can make the freshness protection package of sealing to dry ice in dry ice placed layer of the invention
Middle gas pressure increase, and then dry ice placed layer is strutted, volume increases to form airbag structure, and this air bag is in fruits and vegetables layer and outer bubble
Buffer structure is formed between foam case, damping and fixation are played in fruits and vegetables transportation, reduce fruits and vegetables because of vibration generation
Mechanical wounding.
The present invention is further disclosed is reducing fruits and vegetables temperature using the controlled atmosphere transportation fresh-retaining method of the fruit and vegetable of dry ice
Application in terms of degree, suppression fruits and vegetables breathing.It is right particularly to be vibrated in extension fruits and vegetables are kept for the fresh time reduce transportation
Application in terms of the mechanical damage that fruits and vegetables are caused.Experimental result shows：Compared with Traditional Transportation method, after this technology, warp
Crossing the fruits and vegetables of transport can keep freshness higher, yield rate to improve.
Controlled atmosphere transportation fresh-retaining method of the invention in method it is determined that mainly investigated following factor：
（1）The inhibition of gas componant in fruits and vegetables transportation environment to fruits and vegetables respiration
（2）The heat that dry ice absorbs in liter Huawei's gas around
（3）The increase of shared volume when dry ice sublimation is gas, makes closed freshness protection package dry ice placed layer form air bag.
The controlled atmosphere transportation fresh-retaining method of the fruit and vegetable of utilization dry ice disclosed by the invention is had compared with prior art
Good effect be：
（1）Suppress fruits and vegetables breathing, delay fruits and vegetables aging speed；
（2）The heat in fruits and vegetables is absorbed, fruit temperature is reduced, delays fruits and vegetables aging speed；
（3）Dry ice placed layer forms air bag, and air bag Rotating fields are increased around usual foam case and freshness protection package fruits and vegetables placed layer, subtracts
Because of the mechanical damage of vibration generation in light fruits and vegetables transport.
Brief description of the drawings：
Fig. 1 is the overall structure diagram of controlled atmosphere transportation fresh-retaining case；Wherein：
1 for-case lid 2 for-casing 3 for-first half freshness protection package 4 is-fruits and vegetables and dry ice placed layer junction with holes
5 for-lower half dry ice bag sealing 6 for-lower half dry ice bag 7 is-first half freshness protection package sealing.
Specific embodiment
The present invention is described below by specific embodiment.Unless stated otherwise, technological means used in the present invention
It is method known in those skilled in the art.In addition, embodiment is interpreted as illustrative, it is not intended to limit the present invention
Scope, the spirit and scope of the invention are limited only by the claims that follow.To those skilled in the art, without departing substantially from this
On the premise of invention spirit and scope, the various changes that are carried out to the material component and consumption in these embodiments or change
Belong to protection scope of the present invention.Raw materials used and reagent of the invention is commercially available.
Embodiment 1：
A kind of controlled atmosphere transportation fresh-retaining method of the cucumber of utilization dry ice, it is characterised in that：Cucumber after harvesting is divided by arranging
It is put into freshness protection package after choosing, is fitted into bubble chamber after sealing, per case 5kg；5g dry ice is added in the dry ice placed layer of freshness protection package
After seal, transported after rapid sealing bubble chamber；After 24 hours
Its detailed step is as follows：
（1）Fruit and vegetable after harvesting is put into air-adjustable fresh-keeping bag fruits and vegetables placed layer after arranging sorting, is sealed；
（2）A certain amount of dry ice is put into air-adjustable fresh-keeping bag dry ice placed layer, is sealed；
（3）Load usual foam case after rapid sealing to be transported；
The computing formula of wherein a certain amount of dry ice usage amount is as follows；
The described fresh-keeping computing formula of dry ice pre-refrigerating multi-kind airIt is using different fruit and vegetables
Preservation temperature, carbon dioxide gas degree of thickening, three variables of fruit and vegetable loading amount calculate a kind of calculating public affairs for obtaining dry ice usage amount
Formula.This formula is obtained via experiment is repeated.
Embodiment 2：
A kind of grape controlled atmosphere transportation fresh-retaining method of utilization dry ice, it is characterised in that：Grape after harvesting is sorted by arranging
After be put into air-adjustable fresh-keeping bag, every bag a string, sealing is put into bubble chamber, is gone here and there per case 6；1g dry ice is put into air-adjustable fresh-keeping bag
In dry ice layer, while 1 bag grape transportation fresh-retaining agent is put into, rapid sealing；Transported after bubble chamber is sealed, after 24h：
Embodiment 3：
A kind of cherry controlled atmosphere transportation fresh-retaining method of utilization dry ice, it is characterised in that：Cherry after harvesting is sorted by arranging
It is fitted into pallet afterwards, often 150 grams of disk, is put into air-adjustable fresh-keeping bag after being sealed with self-priming film, every bag of 6 disks load foam after sealing
In case；3g dry ice is put into air-adjustable fresh-keeping bag dry ice layer, sealing；Transported after bubble chamber is sealed.Transport 24h
Afterwards：
Embodiment 4
Strawberry transports 24 hours fresh-keeping effect contrast tests
Embodiment 5
Leek transports 12 hours fresh-keeping effect contrast tests
Embodiment 6
A kind of air-adjustable fresh-keeping bag of the controlled atmosphere transportation fresh-retaining method of the fruit and vegetable of utilization dry ice, it includes case lid 1, casing 2, case
It is divided into fruits and vegetables placed layer and dry ice placed layer in vivo, heat seal connection, is not directly contacted with fruits and vegetables and dry ice between two-layer；Connecting portion
Fruits and vegetables are left on position and dry ice places passage 4 and is used for gas exchanges between two-layer.
Fruits and vegetables placed layer of the present invention includes first half freshness protection package 3 and first half freshness protection package sealing 7；Effect is
For fruits and vegetables provide independent controlled atmospheric packing；Described dry ice placed layer includes lower half dry ice bag sealing 5 and lower half dry ice bag
6, effect is that dry ice is not directly contacted with fruits and vegetables；The gentle On The Drug Release dry ice of dry ice placed layer storage, the carbon dioxide of generation is released
Fruits and vegetables placed layer in freshness protection package is put into, the carbon dioxide content in freshness protection package is maintained controlled atmosphere concentration, reached in transportation
To the effect of fruit and vegetable air-conditioning preservation.When dry ice is in liter Huawei's gas in dry ice placed layer, portion is taken away from fruits and vegetables in freshness protection package
Divide heat, reduce the temperature of fruits and vegetables in transportation, delay fruits and vegetables aging deterioration.Fruits and vegetables and dry ice placed layer connecting portion
On leave passage, aperture is that, less than 1cm, number is not limited.The material of freshness protection package is generally plastics.
In a liter gas for Huawei's certain volume, this gas can make the freshness protection package of sealing to dry ice in dry ice placed layer of the invention
Middle gas pressure increase, and then dry ice placed layer is strutted, volume increases to form airbag structure, and this air bag is in fruits and vegetables layer and outer bubble
Buffer structure is formed between foam case, damping and fixation are played in fruits and vegetables transportation, reduce fruits and vegetables because of vibration generation
Mechanical wounding.
Claims (7)
1. a kind of controlled atmosphere transportation fresh-retaining method of the fruit and vegetable of utilization dry ice, it is characterised in that carried out by the steps：
（1）Fruit and vegetable after harvesting is put into air-adjustable fresh-keeping bag fruits and vegetables placed layer after arranging sorting, is sealed；
（2）A certain amount of dry ice is put into air-adjustable fresh-keeping bag dry ice placed layer, is sealed；
（3）Load usual foam case after rapid sealing to be transported；
The computing formula of wherein a certain amount of dry ice usage amount is as follows；
The described fresh-keeping computing formula of dry ice pre-refrigerating multi-kind airIt is using the guarantor of different fruit and vegetables
Fresh temperature, carbon dioxide gas degree of thickening, three variables of fruit and vegetable loading amount calculate a kind of computing formula for obtaining dry ice usage amount.
2. the air-adjustable fresh-keeping bag of the controlled atmosphere transportation fresh-retaining method of the fruit and vegetable of dry ice is utilized described in claim 1, is divided into fruits and vegetables
Placed layer and dry ice placed layer, heat seal connection, is not directly contacted with fruits and vegetables and dry ice between two-layer；Fruits and vegetables are left on connecting portion
Passage is placed with dry ice（4）For gas exchanges between two-layer.
3. the air-adjustable fresh-keeping bag of the controlled atmosphere transportation fresh-retaining method of the fruit and vegetable of dry ice is utilized described in claim 2, and its feature exists
Include first half freshness protection package in described fruits and vegetables placed layer（3）And the sealing of first half freshness protection package（7）, effect is for fruits and vegetables are carried
For independent controlled atmospheric packing；Described dry ice placed layer includes the bag sealing of lower half dry ice（5）And lower half dry ice bag（6）, make
With being that dry ice is not directly contacted with fruits and vegetables；Dry ice placed layer is stored and the slow dry ice for distilling, the carbon dioxide release that will be produced
The fruits and vegetables placed layer in freshness protection package, makes the carbon dioxide content in freshness protection package maintain controlled atmosphere concentration, is reached in transportation
The effect of fruit and vegetable air-conditioning preservation.
4. the air-adjustable fresh-keeping bag of the controlled atmosphere transportation fresh-retaining method of the fruit and vegetable of dry ice, wherein dry ice are utilized described in claim 2
Dry ice takes away partial heat in liter Huawei's gas from fruits and vegetables in freshness protection package in placed layer, reduces fruits and vegetables in transportation
Temperature, delays fruits and vegetables aging deterioration.
5. the air-adjustable fresh-keeping bag of the controlled atmosphere transportation fresh-retaining method of the fruit and vegetable of dry ice is utilized described in claim 2, and its feature exists
Dry ice is in the gas of liter Huawei's certain volume in dry ice placed layer, and gas pressure increases during gas can make the freshness protection package of sealing
Greatly, and then by dry ice placed layer strut, volume increases to form airbag structure, this air bag is formed between fruits and vegetables layer and outer bubble chamber
Buffer structure, plays damping and fixation in fruits and vegetables transportation, reduces the mechanical wounding that fruits and vegetables are produced by vibration.
6. the controlled atmosphere transportation fresh-retaining method of the fruit and vegetable described in claim 1 using dry ice is reducing fruits and vegetables temperature, is suppressing fruit
Application in terms of vegetable breathing.
7. described in claim 1 using dry ice fruit and vegetable controlled atmosphere transportation fresh-retaining method when extension fruits and vegetables keep fresh
Between application in terms of the mechanical damage caused to fruits and vegetables is vibrated in transportation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710003307.0A CN106689348A (en) | 2017-01-04 | 2017-01-04 | Controlled-atmosphere fruit and vegetable transportation and preservation method utilizing dry ice |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710003307.0A CN106689348A (en) | 2017-01-04 | 2017-01-04 | Controlled-atmosphere fruit and vegetable transportation and preservation method utilizing dry ice |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106689348A true CN106689348A (en) | 2017-05-24 |
Family
ID=58905853
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710003307.0A Pending CN106689348A (en) | 2017-01-04 | 2017-01-04 | Controlled-atmosphere fruit and vegetable transportation and preservation method utilizing dry ice |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107258892A (en) * | 2017-08-07 | 2017-10-20 | 周海腾 | A kind of fresh-keeping method of melon and fruit |
| CN110466851A (en) * | 2019-07-18 | 2019-11-19 | 灵璧县童师傅食品有限公司 | A kind of agricultural and sideline product packing processes technique |
| CN111184060A (en) * | 2019-12-30 | 2020-05-22 | 大有作为(天津)冷链设备有限公司 | Fruit and vegetable fresh-keeping box with electric commercial cold chain |
| CN111453147A (en) * | 2020-03-18 | 2020-07-28 | 浙江冒个泡电子商务有限公司 | Fruit anti-crushing packaging box and packaging method |
| CN113545389A (en) * | 2021-07-21 | 2021-10-26 | 上海交通大学重庆研究院 | Fresh-keeping method for fresh bamboo shoots |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107258892A (en) * | 2017-08-07 | 2017-10-20 | 周海腾 | A kind of fresh-keeping method of melon and fruit |
| CN110466851A (en) * | 2019-07-18 | 2019-11-19 | 灵璧县童师傅食品有限公司 | A kind of agricultural and sideline product packing processes technique |
| CN111184060A (en) * | 2019-12-30 | 2020-05-22 | 大有作为(天津)冷链设备有限公司 | Fruit and vegetable fresh-keeping box with electric commercial cold chain |
| CN111453147A (en) * | 2020-03-18 | 2020-07-28 | 浙江冒个泡电子商务有限公司 | Fruit anti-crushing packaging box and packaging method |
| CN113545389A (en) * | 2021-07-21 | 2021-10-26 | 上海交通大学重庆研究院 | Fresh-keeping method for fresh bamboo shoots |
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