CN103315054B - Automatic modified-atmosphere fruit and vegetable fresh-keeping system and fruit and vegetable fresh-keeping method used therein - Google Patents
Automatic modified-atmosphere fruit and vegetable fresh-keeping system and fruit and vegetable fresh-keeping method used therein Download PDFInfo
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- Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)
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Abstract
The invention provides an automatic modified-atmosphere fruit and vegetable fresh-keeping system and a fruit and vegetable fresh-keeping method used therein. The system comprises a modified-atmosphere case fresh-keeping cold store and a processing workshop, wherein the modified-atmosphere case fresh-keeping cold store has a temperature of 0 to -10 DEG C, a frozen ice atmosphere-modifying plug is inserted into an air vent of a modified-atmosphere case and is a T-shaped hollow cylinder, and a water-containing cotton ball capable of bearing normal pressure of a gas cylinder after freezing is placed in the cylinder. According to the invention, the modified-atmosphere case is used as a fruit and vegetable fresh-keeping unit of the system, automatic atmosphere modification and the cold store are used together, fresh-keeping time for leafy vegetables and berries is long, the system can replace functions of a controlled-atmosphere storehouse and a preservative film and store a variety of fruits and vegetables, bar codes of containers can be managed by a computer, stored fruits and vegetables can be delivered from the cold store and sold on the market at any time, and the system is convenient to use, enables investment to be saved by about 40% compared with the controlled-atmosphere storehouse and allows the loss ratio of fruits and vegetables to appear on the market to decrease to lower than 10% from original 25 to 30%, meeting requirements for technical indexes in modern agriculture. The foldable modified-atmosphere case can be used to replace a foam vegetable packing case for import. The system provided by the invention can be extensively used in the field of fresh-keeping of fruits, vegetables, etc., is especially applicable to leafy vegetables and berries like a strawberry hard to maintain fresh and realizes integrated storage, transport and marketing.
Description
Technical field
The present invention relates to a kind of preserving fruit and vegetable utilizing system and fruit and vegetable preserving method thereof.
Background technology
Current, the annual loss and waste rate of China's fruit and vegetable food is very surprising, and up to 25%～30%, the fruits and vegetables loss late of developed country is below 5%.
Traditional freezer fruit and vegetable preservation, high and low carbon fruits and vegetables can not load in mixture, and fresh-keeping number of days is short, and fruit and vegetable refrigerating and fresh-retaining basket is placed on shelf, takes up room large, and fruits and vegetables listing also will be carried out secondary packaging, and large, the fresh-keeping cost of fruits and vegetables loss is high.
Traditional combined type air-conditioned cold store, although the long-time fruit and vegetable preservation of energy can only carry out single variety storage, can not load in mixture storage by high and low carbon fruits and vegetables.The equipment of air-conditioned cold store is comparatively complicated, and cost is high, power consumption is large.Freshness-retaining vegetable cost is high, do not have market, and peasant household makes air-conditioned cold store into freezer and uses.
In addition also there is following shortcoming in traditional air-conditioned cold store:
1, need shelf and storing containers.
2, container will repack the listing of listing container into.
3, storehouse external demand is equipped with the equipment such as nitrogen processed, moisturizing machine.
4, in storehouse, oxygen is few, and personnel enter storehouse will have oxygenating equipment.
5, after storehouse door is opened, start shooting and could realize controlled atmosphere parameter at 24 o'clock.
6, single variety storage, the user's inconvenience of regularly going on the market, cost is high.
Summary of the invention
The invention provides a kind of automatic and spontaneous controlled-atmosphere preserving fruit and vegetable utilizing system and fruit and vegetable preserving method thereof, solve that fruits and vegetables postpartum is large to storing listing loss, air-conditioned cold store cost is high, function singleness, fruits and vegetables storage are gone on the market inconvenient technical problem.
The technical solution adopted for the present invention to solve the technical problems is:
thisplant automatic and spontaneous controlled-atmosphere preserving fruit and vegetable utilizing system, comprise air regulating box fresh-keeping ice house and job shop, described air regulating box fresh-keeping ice house temperature is 0 DEG C～10 DEG C freezers, on the ground of air regulating box fresh-keeping ice house, be placed with pallet, on pallet, buttress is placed with air regulating box, air regulating box is fruit and vegetable preservation unit, on described air regulating box, have pore, in pore, be inserted with and freeze controlled atmosphere plug, freezing controlled atmosphere plug is T shape hollow cylinder, its end face is connected with top cover, there is controlled atmosphere hole at top cover center, its bottom center has port, be equipped with the moisture cotton balls that can bear gas cylinder normal pressure after freezing in cylinder inside, cotton balls moisture evaporation in controlled atmosphere plug, relies on the interior box outside temperature of case poor, is power, carries out spontaneous controlled-atmosphere.
In described job shop, be provided with controlled atmosphere workplace, in described controlled atmosphere workplace, be provided with controlled atmosphere workbench, on controlled atmosphere workbench, have controlled atmosphere instrument, controlled atmosphere instrument is provided with timing digital display, remote-controller socket, supply socket, power switch, the switch of bleeding, gas-filled switching tube, the mouth of pipe of bleeding, the air inlet mouth of pipe and aerating pipe port; Described controlled atmosphere instrument inside is provided with air extractor, exhaust tube is connected with the pore on air regulating box, the described air inlet mouth of pipe is connected with gas cylinder by tracheae, gas cylinder is provided with gas cylinder decompression table, aerating pipe port is communicated with exhaust tube by gas tube, controlled atmosphere instrument inside is provided with magnetic valve on the pipeline between the air inlet mouth of pipe and aerating pipe port, and remote-controlled switch board is connected with remote-controller socket by far controlling line.
Described job shop also comprises between cutting dish workplace, garden stuff processing, casing cleaning shop, clean casing are deposited storehouse, toilet, the lobby of changing one's clothes, pump house, power distribution station and guard house.
Described air regulating box is for covering air regulating box or folding air regulating box;
The described air regulating box that covers is made up of casing and case lid, on casing and case lid, has pore, is inserted with and freezes controlled atmosphere plug in pore;
Described folding air regulating box is made up of outer carton, interior controlled atmosphere polybag and liner box-frame, interior controlled atmosphere polybag is placed in outer carton interior, liner box-frame is supported in interior controlled atmosphere polybag, in the pore of interior controlled atmosphere polybag, be inserted with and freeze controlled atmosphere plug, the side of outer carton and liner box-frame also has pore corresponding to position.
Described have to cover between the casing of air regulating box and case lid be connected with sealing buckle.
On the interior controlled atmosphere polybag of described folding air regulating box, be equipped with four and freeze controlled atmosphere plug.
The fruit and vegetable preserving method of this employing automatic and spontaneous controlled-atmosphere preserving fruit and vegetable utilizing system, has the following steps:
Step 1, air regulating box is fruit and vegetable preservation unit, controlled atmosphere is automatically installed and is frozen controlled atmosphere plug on air regulating box, with part air in controlled atmosphere instrument extraction air regulating box, and is filled with carbon dioxide or nitrogen in case, air regulating box is put into 0 DEG C～10 DEG C freezers and refrigerate; On case, controlled atmosphere plug cotton balls thaws and automatically opens, and carries out spontaneous controlled-atmosphere.
Step 2, when air regulating box proceeds to listing Cold Chain Logistics by freezer, freezes the automatic controlled atmosphere of controlled atmosphere plug on case, supplement O in case
2, discharge unnecessary CO
2, make it to reach safety listing object;
Step 3, after fruits and vegetables listing, opens case lid and sells, and for preventing fruits and vegetables dehydration, case lid is covered and realizes automatic water supplement, thus Shelf-life.
Before described step 1, according to antistaling process, fruits and vegetables are cased, be placed on the interior precooling of 0 DEG C～10 DEG C freezers 2～5 hours.
Described step 1 while strawberry being housed in air regulating box, is filled with CO in air regulating box
2, while leaf vegetables being housed in air regulating box, in air regulating box, be filled with nitrogen.
Principle of the present invention is as follows:
Because preserving fruit and vegetable utilizing needs two primary conditions: the one,, controlled atmosphere automatically; The 2nd,, cold environment.According to above-mentioned principle, the present invention, on the basis of fruits and vegetables spontaneous controlled-atmosphere preservation technology, is combined controlled atmosphere initiatively with spontaneous controlled-atmosphere, and air regulating box is fruit and vegetable preservation unit, and than taking air-conditioned cold store as fresh-keeping unit, minimizing equipment, cost are low.Air regulating box and cold environment are combined, automatic and spontaneous controlled-atmosphere preservation technology, some kinds are fresh-keeping, can substitute traditional air-conditioned cold store fresh-keeping function.
The present invention is technical at fruits and vegetables spontaneous controlled-atmosphere preservation, according to physics principle, air regulating box inside and outside temperature difference is gas exchange power, controlled atmosphere element is arranged on air regulating box, can be according to the weight of fruits and vegetables in case, respiratory capacity and intake and exhaust amount principle, the oxygen in automatic control stuff box and carbon dioxide.Fruits and vegetables are sealed up for safekeeping in air regulating box, and fruits and vegetables consume O in case
2discharge CO simultaneously
2gas, controlled atmosphere plug is opened, and carries out automatic controlled atmosphere, supplements oxygen and discharge carbon dioxide in case, makes it to meet the preservation technique parameter request of air conditioned storage and logistics listing.Extend fruit vegetables storing period and listing shelf life thereby reach, keep the object of fruit-vegetable quality.
Air regulating box fresh-keeping ice house of the present invention is the feature institute specialized designs fresh-keeping according to air regulating box, and 0 degree is keeping strawberry fresh temperature; 7-10 degree is leaf vegetables preservation temperature.
Design principle and using method of freezing controlled atmosphere plug of the present invention is as follows:
Freezing controlled atmosphere plug is the automatic switch on air regulating box, and after in controlled atmosphere plug, moisture cotton balls freezes, resistance is large, can under large pressure, shut, and in the time of inflated with nitrogen in case, decompression table is 0.1～0.6 o'clock, and controlled atmosphere plug can not be opened.Air regulating box lets cool behind storehouse, and the temperature inside the box is 3～4 degree, and in plug, cotton balls thaws, and water evaporation is opened, and carries out automatic controlled atmosphere.
Controlled atmosphere instrument after the present invention improves has been installed device for digit-displaying and remote controller, and controlled atmosphere instrument switch regulates can realize far distance controlled, and controlled atmosphere instrument can be taken out air in case, and inflated with nitrogen or carbon dioxide, can realize preservation technique parameter in 14 seconds simultaneously.Can be rapidly by O in case
2gas drops to 5% left and right; Save inflationtime, save nitrogen and CO
2gas.
Preserving fruit and vegetable utilizing of the present invention and conventional method and tradition have following difference:
Automatic and spontaneous controlled-atmosphere case fruit and vegetable preservation method, has absorbed mechanical controlled atmosphere (CA) and automatic controlled atmosphere (MA) method strong point, two kinds of controlled atmosphere methods, is applied on air regulating box, has formed following several peculiar preservation methods of automatic and spontaneous controlled-atmosphere fruit retention vegetables:
(1) low temperature, high-carbon, hypoxemia, the berry preservation methods such as keeping strawberry fresh, red bayberry;
(2) low temperature, low-carbon (LC), hypoxemia, the leaf vegetables preservation methods such as fresh-keeping blanched garlic leaves, leek;
Automatic and spontaneous controlled-atmosphere preservation and traditional spontaneous controlled-atmosphere preservation method control area are as following table:
1, anti-dehydration: air regulating box can make the moisture content of evaporation remain in case, also can hold some water at the bottom of case, under action of thermal difference, fruits and vegetables can automatic makeup water-filling part, for fruits and vegetables have been created the environment (humidity 95% left and right) of a high humility.In transport test, leaf vegetables percentage of water loss is less than 2%.
2, controlled atmosphere: the controlled atmosphere effect that air regulating box has is its fresh-keeping basis, utilize automatic regulating element on fruits and vegetables breathing and case to regulate intake and exhaust amount, make to set up in case height (low) carbon dioxide (1-18%) and hypoxemia (5% left and right) controlled atmosphere environment, thereby effectively control the aging of fruits and vegetables, reach fresh-keeping object.
The present invention has been designed with covers two kinds of air regulating box and collapsible air regulating box, and 35 liters cover air regulating box automatic controlled atmosphere part is housed, and controlled atmosphere be realized technical parameter automatically, can use 3 years.Disposable folding air regulating box, has plurality of specifications, have advantages of easy to use, cost is low.Folding air regulating box has carton outward, inside has controlled atmosphere polybag, on bag, automatic controlled atmosphere element is housed.In controlled atmosphere bag, have liner box-frame, support and stand by force, buttress buttress is convenient, is convenient to long-distance logistics use.Can be used for exporting fruit and vegetable air-conditioning packaging.
3, air regulating box fruit and vegetable preservation, storage logistics listing is integrated.Realize national and foreign standards.
Controlled atmosphere plug of the present invention is the kernel software of fresh-keeping system, and " controlled atmosphere element and fruit air regulating fresh-keeping method thereof automatically " has been awarded patent right, Granted publication CN101433234B at present.Controlled atmosphere plug and air regulating box match, and form preservation technique parameter.Freezing controlled atmosphere plug is second generation product, and cost 50% is easy to use, multiple functional.
The present invention contrasts as following table with traditional mechanical air-conditioned cold store difference:
As seen from the above table, native system air regulating box is a fruit and vegetable preservation unit, energy controlled atmosphere fruit and vegetable preservation automatically in air regulating box work, air regulating box is placed in freezer (on refrigerator car) on request, the air regulating box fresh-keeping warehouse (air regulating box fresh-keeping vehicle) that has formed original creation, on the berries such as keeping strawberry fresh and leaf vegetables dish, fresh keeping time is long, storing is convenient, has the function that replaces mechanical air-conditioned cold store.(air regulating box fresh-keeping warehouse has large-scale storehouse and small-sized storehouse two classes) provides cost savings and consumes energy, and meanwhile, also prevented gas harm.
Native system has following innovation effect:
1, air regulating box is combined with freezer, substitutes traditional modified atmosphere fresh-keeping storage, can many kinds store, and container bar code computer control outbound at any time listing, user-friendly, air regulating box is interior, box outside temperature is poor is power, exchanging gas.Can reduce investment outlay approximately 40%.
2, organically combined that air regulating box is fresh-keeping, vacuum freshness retaining, salt marsh are fresh-keeping, fresh-keeping, the multiple preservation technique of cutting dish, adapt to Agriculture of China structure, make full use of equipment, have realized high benefit, energy-saving and emission-reduction object.
3, can promote the automaticity of domestic traditional agriculture, realize antenatal deep processing in postpartum and organically combine, promote modern agricultural development, agricultural population is shifted to fresh-keeping secondary industry.
4, adapt to China and promote agriculture industrial policy, project investment is changeable, invests 5,000,000 yuan and builds little fresh-keeping warehouse, can realize investment then, is constructed and put into operation then.
Native system adapts to the present situation of China's agricultural development, can substitute the function of air-conditioned cold store and preservative film.Cover air regulating box cost low, can recycle 2 years, disposable folding air regulating box cost is low, the foreign exchange earning of favourable fruits and vegetables.Realize the object of energy-saving and emission-reduction.Air regulating box can be to standardization, seriation development, realizes modern agriculture fruits and vegetables listing loss late by 25～30% technical requirements that drop to below 10%.
This change system can be widely used in fruit, and the fresh-keeping field such as vegetables is specially adapted to be difficult to the fresh-keeping berry such as leafy vegetables and strawberry.
Brief description of the drawings
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is application factory building layout of the present invention.
Fig. 2 is the placement form schematic diagram of air regulating box in air-conditioned cold store.
Fig. 3 has the structural representation covering after air regulating box installation controlled atmosphere plug.
Fig. 4 is side-looking and the sectional structure schematic diagram that freezes controlled atmosphere plug.
Fig. 5 is the structural representation of top cover.
Fig. 6 is the assembly drawing of folding air regulating box.
Fig. 7 is the structural representation of controlled atmosphere workbench.
Fig. 8 is the Facad structure schematic diagram of controlled atmosphere instrument.
Fig. 9 is the structure schematic diagram of controlled atmosphere instrument.
Figure 10 is the process chart of invention keeping strawberry fresh.
Figure 11 is the process chart one of invention freshness-retaining vegetable.
Figure 12 is the fresh process chart two of depositing vegetables of inventing type.
Reference numeral: 1-0 DEG C～10 DEG C freezers, 2-controlled atmosphere workplace, 3-cutting dish workplace, between 4-garden stuff processing, 5-casing cleaning shop, 6-is clean, and casing is deposited storehouse, 7-toilet, the 8-lobby of changing one's clothes, 9-pump house, 10-power distribution station, 11-guard house, 12-freezes controlled atmosphere plug, 13-controlled atmosphere hole, 14-port, the moisture cotton balls of 15-, 16-top cover, 18-casing, 19-case lid, 20-seals buckle, 21-pallet, the outer carton of 22-, controlled atmosphere polybag in 23-, 24-liner box-frame, 25-pore, 26-controlled atmosphere workbench, 27-controlled atmosphere instrument, the 28-air inlet mouth of pipe, 29-aerating pipe port, the 30-mouth of pipe of bleeding, 31-timing digital display, 32-remote-controller socket, 33-supply socket, 34-power switch, the 35-switch of bleeding, 36-exhaust tube, 37-gas tube, 38-gas-filled switching tube, 39-is far controlled line, 40-remote-controlled switch board, 41-gas cylinder decompression table, 42-tracheae, 43-gas cylinder, 44-covers air regulating box, 45-folds air regulating box.
Detailed description of the invention
Shown in Figure 1, this automatic and spontaneous controlled-atmosphere preserving fruit and vegetable utilizing system, comprises air regulating box fresh-keeping ice house and job shop, and described air regulating box fresh-keeping ice house is 0 DEG C～10 DEG C freezers 1 of temperature.In described job shop, be provided with controlled atmosphere workplace 2, job shop also comprises between cutting dish workplace 3, garden stuff processing 4, casing cleaning shop 5, clean casing are deposited storehouse 6, toilet 7, the lobby 8 of changing one's clothes, pump house 9, power distribution station 10 and guard house 11.
Shown in Figure 2, on the ground of air regulating box fresh-keeping ice house, be placed with pallet 21, on pallet, buttress is placed with air regulating box, and air regulating box is for covering air regulating box 44 and folding air regulating box 45.On air regulating box, have pore 25, in pore, be inserted with and freeze controlled atmosphere plug 12.
Shown in Figure 3, described in cover air regulating box 44 and formed by casing 18 and case lid 19, on casing and case lid, have pore 25, in pore, be inserted with and freeze controlled atmosphere plug 12; Described have to cover between the casing 18 of air regulating box 44 and case lid 19, be connected with sealing buckle 20.
Shown in Fig. 4, Fig. 5, freezing controlled atmosphere plug is T shape hollow cylinder, and its end face is connected with top cover 16, and there is controlled atmosphere hole 13 at top cover center, and its bottom center has port 14, after cotton balls freezes in cylinder, can bear gas cylinder normal pressure 15.
Shown in Figure 6, described folding air regulating box 45 is made up of outer carton 22, interior controlled atmosphere polybag 23 and liner box-frame 24, interior controlled atmosphere polybag 23 is placed in outer carton 22 inside, liner box-frame 24 is supported in interior controlled atmosphere polybag 23, in the pore of interior controlled atmosphere polybag 23, be inserted with and freeze controlled atmosphere plug 12, the side of outer carton and liner box-frame also has pore corresponding to position 25.
Shown in Fig. 7,8,9, in described controlled atmosphere workplace, be provided with controlled atmosphere workbench 26, on controlled atmosphere workbench, have controlled atmosphere instrument 27, controlled atmosphere instrument is provided with timing digital display 31, remote-controller socket 32, outlet 33, power switch 34, the switch 35 of bleeding, gas-filled switching tube 38, the mouth of pipe 30 of bleeding, the air inlet mouth of pipe 28 and aerating pipe port 29; Described controlled atmosphere instrument inside is provided with air extractor, exhaust tube 36 is connected with the pore 25 on air regulating box, the described air inlet mouth of pipe 28 is connected with gas cylinder 43 by tracheae 42, gas cylinder is provided with gas cylinder decompression table 41, aerating pipe port 29 is communicated with exhaust tube 36 by gas tube 37, controlled atmosphere instrument inside is provided with magnetic valve on the pipeline between the air inlet mouth of pipe 28 and aerating pipe port 29, and remote control panel 40 is connected with remote-controller socket 32 by far controlling line 39.
The fruit and vegetable preserving method of this employing automatic and spontaneous controlled-atmosphere preserving fruit and vegetable utilizing system, has the following steps:
Step 1 is installed and is frozen controlled atmosphere plug 12 on air regulating box, extracts the interior part air of air regulating box out with controlled atmosphere instrument 27, and to being filled with carbon dioxide in case or nitrogen (while strawberry being housed in air regulating box, is filled with CO in air regulating box
2, while leaf vegetables being housed in air regulating box, in air regulating box, be filled with nitrogen), air regulating box is put into 0 DEG C～10 DEG C freezers and refrigerate;
Step 2, when air regulating box proceeds to listing logistics by freezer, the cotton balls that freezes controlled atmosphere plug on case thaws, and after water evaporation, controlled atmosphere plug is opened automatically, supplements O in case
2, discharge unnecessary CO
2, make it adaptive temperature and change the requirement that meets the increasing of fruits and vegetables respiratory capacity, reach safety listing object;
Step 3, after fruits and vegetables listing, opens case lid and sells, and for preventing fruits and vegetables dehydration, case lid is covered and realizes automatic water supplement, thus Shelf-life.
Before described step 1, can fruits and vegetables be cased according to antistaling process, be placed on 0 DEG C～10 DEG C interior precoolings of freezer 1 2～5 hours.
Shown in Figure 10～12, Figure 10～12nd, the technological process of keeping strawberry fresh of the present invention and vegetables.
The method of fruit and vegetable preservation of the present invention has absorbed mechanical controlled atmosphere (CA) and spontaneous controlled-atmosphere (MA) method strong point, and two kinds of controlled atmosphere methods are applied on air regulating box, has formed following several peculiar preservation methods:
1, low temperature, high-carbon, hypoxemia, the berry preservation methods such as keeping strawberry fresh, red bayberry.
2, low temperature, low-carbon (LC), hypoxemia, the preservation method of the leaf vegetables such as fresh-keeping blanched garlic leaves, leek.
3, low temperature, high-carbon, hypoxemia, the preservation method of control fruits and vegetables ethylene gas.
4, normal temperature, high-carbon, hypoxemia, the fresh-keeping forced ripening method of persimmon deastringent.
5, the interior humidity of air regulating box is 90%～70%; Ensure the few dehydration of fruits and vegetables, fresh-keeping work.
6, in case, case has temperature difference outward, and the temperature difference has 3～4 DEG C of temperature difference in normal temperature～zero degree situation, and this is the power (gravitation effect) of gas exchange in case, outside case, and oxygen replenishment in guard box is discharged unnecessary carbon dioxide simultaneously.Match with automatic controlled atmosphere part (controlled atmosphere plug) on case, realize preservation technique parameter.
7, case inside and outside temperature difference, the pressure of generation is very little, so (if dish one is the placement of a bundle etc.) put and should be arranged according to this principle to fruits and vegetables in case.
8, " three unified " principle: the intake and exhaust amount of the quantity of fruits and vegetables dress air regulating box, fruits and vegetables respiratory capacity, air regulating box, the unification of three quantity, could realize preservation technique parameter and normally move.
Application example one, has and covers air regulating box by the technological requirement of freshness-retaining vegetable, puts vegetables (as hotbed chives, crowndaisy chrysanthemum, cabbage mustard, color green pepper) into, after joint sealing, 5 controlled atmosphere plugs are installed on case, with controlled atmosphere instrument inflated with nitrogen, discharge part air in air regulating box, realize hypoxemia low-carbon (LC) preservation technique parameter.Air regulating box is put into 7 DEG C of freezers, places 20～30 hours, and after the cotton balls melt water evaporation of controlled atmosphere plug, controlled atmosphere plug is opened automatically, supplements O in case
2, discharge unnecessary CO
2gas, realizes low temperature, hypoxemia, low-carbon (LC) freshness-retaining vegetable object.Fresh-keeping 27 days of most leaf vegetables.
Below that vegetables preserve 10 days fresh-keeping effect contrast tables in 3～7 DEG C of storehouses:
7000 grams of the fresh-keeping leaf vegetables of two, 70 liters of folding air regulating box of application example, have above-mentioned fresh-keeping effect equally.Casing cost of manufacture reduces by 70%, facilitates logistics listing, casing production standard.
Application example three, strawberry air regulating box storage pilot plant test, utilize the new method of air regulating box keeping strawberry fresh, test by beauty's strawberry cultivars, strawberry is put into the plastic casing (6 kilograms of 12 capsules) that is lined with blotting paper after plucking, pack 0 DEG C of precooling of air regulating box of being unkitted controlled atmosphere plug into, controlled atmosphere plug is installed next day, seal, fill CO
2gas.Be filled with about 15%CO
2gas, puts into 0 DEG C of freezer storage, makes casing in exchanging gas state.CO in case
2gas maintains 15%～18%, O substantially
2gas maintains more than 3% substantially.After 10 days, detect effect and kept original color and luster and taste, edible safety.Air regulating box is filled with 13%～14% CO
2gas, preserves 10 days, good fruit rate reach 93.9%, 24 hour shelf life well fruit rate reach 90.8%, substantially kept original color and luster and taste, do not use antistaling agent, edible safer.Strawberry, Waxberry preservation 25 days.
Cherry air regulating box is fresh-keeping, is placed on 0 degree freezer interior fresh-keeping 90 days, and quality is constant, has the function that substitutes mechanical air-conditioned cold store.
Claims (7)
1. an automatic and spontaneous controlled-atmosphere preserving fruit and vegetable utilizing system, comprises air regulating box fresh-keeping ice house and job shop, it is characterized in that:
Described air regulating box fresh-keeping ice house temperature is 0 DEG C～10 DEG C freezers (1), on the ground of air regulating box fresh-keeping ice house, be placed with pallet (21), on pallet, buttress is placed with air regulating box, on described air regulating box, have pore (25), in pore, be inserted with and freeze controlled atmosphere plug (12), freezing controlled atmosphere plug is T shape hollow cylinder, its end face is connected with top cover (16), there is controlled atmosphere hole (13) at top cover center, its bottom center has port (14), is equipped with the moisture cotton balls (15) that can bear gas cylinder normal pressure after freezing in cylinder inside;
In described job shop, be provided with controlled atmosphere workplace (2), in described controlled atmosphere workplace, be provided with controlled atmosphere workbench (26), on controlled atmosphere workbench, have controlled atmosphere instrument (27), controlled atmosphere instrument is provided with timing digital display (31), remote-controller socket (32), supply socket (33), power switch (34), the switch of bleeding (35), gas-filled switching tube (38), the mouth of pipe of bleeding (30), the air inlet mouth of pipe (28) and aerating pipe port (29); Described controlled atmosphere instrument inside is provided with air extractor, exhaust tube (36) is connected with the pore (25) on air regulating box, the described air inlet mouth of pipe (28) is connected with gas cylinder (43) by tracheae (42), gas cylinder is provided with gas cylinder decompression table (41), aerating pipe port (29) is communicated with exhaust tube (36) by gas tube (37), controlled atmosphere instrument inside is provided with magnetic valve on the pipeline between the air inlet mouth of pipe (28) and aerating pipe port (29), and remote-controlled switch board (40) is connected with remote-controller socket (32) by far controlling line (39);
Described air regulating box is for covering air regulating box (44) or folding air regulating box (45);
The described air regulating box (44) that covers is made up of casing (18) and case lid (19), has pore (25) on casing and case lid, is inserted with and freezes controlled atmosphere plug (12) in pore;
Described folding air regulating box (45) is made up of outer carton (22), interior controlled atmosphere polybag (23) and liner box-frame (24), interior controlled atmosphere polybag (23) is placed in outer carton (22) inside, liner box-frame (24) is supported in interior controlled atmosphere polybag (23), in the pore of interior controlled atmosphere polybag (23), be inserted with and freeze controlled atmosphere plug (12), the side of outer carton and liner box-frame also has pore corresponding to position (25).
2. according to the automatic and spontaneous controlled-atmosphere preserving fruit and vegetable utilizing system described in claim 1, it is characterized in that: described job shop also comprises (4) between cutting dish workplace (3), garden stuff processing, casing cleaning shop (5), totally casing is deposited storehouse (6), toilet (7), the lobby of changing one's clothes (8), pump house (9), power distribution station (10) and guard house (11).
3. according to the automatic and spontaneous controlled-atmosphere preserving fruit and vegetable utilizing system described in claim 1, it is characterized in that: described in have to cover and between the casing (18) of air regulating box (44) and case lid (19), be connected with sealing buckle (20).
4. automatic and spontaneous controlled-atmosphere preserving fruit and vegetable utilizing system according to claim 1, is characterized in that: on the interior controlled atmosphere polybag (23) of described folding air regulating box (45), be equipped with four and freeze controlled atmosphere plug (12).
5. a fruit and vegetable preserving method that adopts automatic and spontaneous controlled-atmosphere preserving fruit and vegetable utilizing system described in claim 1～4 any one, is characterized in that having the following steps:
Step 1, air regulating box is fruit and vegetable preservation unit, automatically controlled atmosphere, on air regulating box, install and freeze controlled atmosphere plug (12), with part air in controlled atmosphere instrument (27) extraction air regulating box, and be filled with carbon dioxide or nitrogen in case, air regulating box is put into 0 DEG C～10 DEG C freezers (1) refrigeration; On case, in controlled atmosphere plug, cotton balls thaws, and water evaporation is opened automatically, carries out spontaneous controlled-atmosphere;
Step 2, when air regulating box proceeds to listing Cold Chain Logistics by freezer, on case, controlled atmosphere plug regulates automatically, supplements O2 in case, discharges unnecessary CO2, makes it to reach safety listing object;
Step 3, after fruits and vegetables listing, opens case lid and sells, and for preventing fruits and vegetables dehydration, case lid is covered and realizes automatic water supplement, thus Shelf-life.
6. fruit and vegetable preserving method according to claim 5, is characterized in that: before described step 1, according to antistaling process, fruits and vegetables are cased, be placed on the interior precooling of 0 DEG C～10 DEG C freezers (1) 2～5 hours.
7. fruit and vegetable preserving method according to claim 5, is characterized in that: described step 1, while strawberry being housed in air regulating box, in air regulating box, be filled with CO2, and while leaf vegetables being housed in air regulating box, in air regulating box, be filled with nitrogen.
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| CN103734261A (en) * | 2014-02-12 | 2014-04-23 | 木志杰 | Comprehensive method for refrigerating and refreshing waxberries |
| CN107600672A (en) * | 2017-10-13 | 2018-01-19 | 孙斐 | A kind of regulating the qi flowing in the channels window of dismantled and assembled controlled atmosphere bag |
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| CN101926381A (en) * | 2010-06-29 | 2010-12-29 | 刘怀寅 | Automatic and spontaneous controlled-atmosphere preservation system and fruit and vegetable preservation method thereof |
| CN102030151A (en) * | 2010-11-03 | 2011-04-27 | 国家农产品保鲜工程技术研究中心（天津） | Device for fresh-keeping packaging of bananas |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1374238A (en) * | 2002-04-12 | 2002-10-16 | 刘怀寅 | Weather CA air conditioning, photosynthetic preserving method and equipment |
| CN2541369Y (en) * | 2002-04-12 | 2003-03-26 | 刘怀寅 | Fresh keeping gas regulating instrument and matching fresh keeping gas regulating case |
| CN1602706A (en) * | 2004-09-13 | 2005-04-06 | 福建省农业科学院果树研究所 | Loquat MAP package and fresh keeping technology |
| CN201338804Y (en) * | 2008-11-27 | 2009-11-04 | 韩书才 | Simple and small packing modified atmosphere freshness protection package for vegetables |
| CN101433234A (en) * | 2008-12-23 | 2009-05-20 | 刘怀寅 | Automatic air-adjusting element and air-adjusting fresh-keeping method for fruits |
| CN101926381A (en) * | 2010-06-29 | 2010-12-29 | 刘怀寅 | Automatic and spontaneous controlled-atmosphere preservation system and fruit and vegetable preservation method thereof |
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