CN103004965A - Modified atmosphere preservation method of baby cabbage - Google Patents
Modified atmosphere preservation method of baby cabbage Download PDFInfo
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- CN103004965A CN103004965A CN 201210495767 CN201210495767A CN103004965A CN 103004965 A CN103004965 A CN 103004965A CN 201210495767 CN201210495767 CN 201210495767 CN 201210495767 A CN201210495767 A CN 201210495767A CN 103004965 A CN103004965 A CN 103004965A
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Abstract
The invention discloses a modified atmosphere preservation method of baby cabbage. The modified atmosphere preservation method comprises the following steps: (1) the baby cabbage to be preserved is picked and selected; (2) the picked and selected baby cabbage is precooled; (3) the precooled baby cabbage is sterilized; (4) the sterilized baby cabbage is put in a packaging container and mixed gas of oxygen, carbon dioxide and nitrogen is introduced into the packaging container until the concentration of nitrogen, oxygen and carbon dioxide is 85-95%, 1-8% and 1-6% respectively; and (5) after modified atmosphere packaging, the baby cabbage is refrigerated in a refrigeration house. According to the preservation method disclosed by the invention, in-vivo breath of the baby cabbage can be restrained, in-vivo water of the baby cabbage is kept and the shelf life of the baby cabbage is prolonged.
Description
Technical field
The invention belongs to the food preservative technology field, relate to a kind of air regulating fresh-keeping method of doll's dish.
Background technology
Doll's dish rear harmful microbes such as bacterium, mould that easily are subject to of gathering infect, and cause rotting in the postharvest storage transportation.Therefore, the infecting and breed of the sex pheromone in establishment doll dish surface and the storage environment is maintenance doll dish fresh quality, the prolongation important technical of storage period.
In the prior art, be used for doll's dish class preservation technique and substantially be divided into three kinds of methods:
1, adopting the preservation by low temperature technology, is exactly that doll's dish is preserved at a certain temperature (0 ~ 5 ℃), carries out fresh-keeping to doll's dish.
2, low temperature and high relative humidity is fresh-keeping, is exactly doll's dish is preserved at a certain temperature (0 ~ 5 ℃), and ambient humidity is also higher simultaneously.
3, storing indoor certain inert gas and the preservation by low temperature of being filled with of doll's dish.
Adopting above-mentioned the first preservation technique is the preservation by low temperature method, and the major defect of existence is: after storing certain hour, fresh-keeping object is because of the atrophy of drying out, shrivelled, and mouthfeel descends greatly.
Adopting above-mentioned the second preservation technique is the low temperature and high relative humidity fresh-keeping method, and the major defect of existence is: although this kind method can guarantee to a certain extent that the dehydration of doll's dish is slow, strengthened again doll's dish and caused the harm of going mouldy because indoor humidity is excessive.
Adopt above-mentioned the third preservation technique namely to be filled with the inert gas fresh-keeping method, the major defect of existence is: a, the indoor inert gas concentration equilibrium of difficult assurance are unanimously; B, because of the staff pass in and out indoor or gas exchange to cause gas outwards to run off serious, fresh-keeping effect descends; C, indoor be full of inert gas after, the indoor oxygen that lacks, inert gas itself can damage the person, make staff's personal safety can not get ensureing, and personnel's turnover difficulty comparatively.Simultaneously, the large usage quantity of inert gas has increased fresh-keeping cost.
Summary of the invention
The object of the invention is to overcome defective of the prior art, and a kind of air regulating fresh-keeping method of doll's dish is provided, and this preservation method can suppress the internal respiration of doll's dish body, keeps moisture in doll's dish body, and its freshness date is prolonged.
For achieving the above object, the technical solution used in the present invention is: a kind of air regulating fresh-keeping method of doll's dish, described air regulating fresh-keeping method comprises the steps:
1) to the fresh-keeping doll's dish of need pluck, sorting;
2) the doll's dish after harvesting, the sorting is carried out the precooling operation;
3) the doll's dish after the precooling is carried out sterilization treatment;
4) the doll's dish after will sterilizing places in the packing container, and passes into the mist of oxygen, carbon dioxide and nitrogen in the described packing container, is that the concentration of 1-8%, carbon dioxide is 1-6% so that the concentration of packing container nitrogen is the concentration of 85-95%, oxygen;
5) doll's dish that controlled atmospheric packing is good is inserted in the freezer and is refrigerated.
Related content in the technique scheme is explained as follows:
1, in the such scheme, described doll's dish is selected plucking of medium well degree.
2, in the such scheme, described sorting refers to remove doll's dish that corrupt or appearance damages.
3, in the such scheme, the temperature of pre-freezer is 0 ~ 4 ℃ during described precooling operation, and pre-cool time was more than or equal to 24 hours.
4, in the such scheme, described sterilization treatment refers in pre-freezer the air sterilization system is set, and adopts ozone gas that doll's dish is sterilized.
5, in the such scheme, described packing container is transparent packing bag or transparent packing bag.
6, in the such scheme, described packing container is packing box or the packaging bag of low barrier material.
7, in the such scheme, the refrigerated storage temperature in the described freezer is 0 ~ 2 ℃.
Because the utilization of the technical program, the present invention compared with prior art has following advantages:
1, because the present invention adopts Modified atmosphere packaging, composite fresh-keeping gas is replaced the air in the packing box of the fresh doll's dish of packing into, the interior gas mixing ratio of box changes package, form the Mini-type air pressure debugging environment in the box---namely formed the Mini-type air pressure debugging storehouse, thereby reach the breathing that slows down fresh doll's dish, suppress metabolism, control bacterial reproduction, thereby make fresh doll's dish reach the fresh-keeping freshness date more than 2 times of freezer, the freshness date that has effectively prolonged doll's dish.
2, because packaging material of the present invention adopt low barrier material, has good heat sealability; Has simultaneously certain gas permeability, in order to keep the gaseous environment in the packing to keep balance.Such packing can also effectively protect doll's dish to be in a kind of fresh-keeping controlled atmosphere environment that extremely is conducive to, and has simultaneously good commodity value.
Description of drawings
Accompanying drawing 1 is the inventive method flow chart.
The specific embodiment
The invention will be further described below in conjunction with drawings and Examples:
Embodiment one:
As shown in Figure 1, a kind of air regulating fresh-keeping method of doll's dish, described air regulating fresh-keeping method comprises the steps:
1) needs that fresh-keeping doll's dish is plucked, sorting;
2) the doll's dish after harvesting, the sorting is carried out the precooling operation;
3) the doll's dish after the precooling is carried out sterilization treatment;
4) the doll's dish after will sterilizing places in the packing container, and passes into the mist of oxygen, carbon dioxide and nitrogen in the described packing container, is that the concentration of 1-8%, carbon dioxide is 1-6% so that the concentration of packing container nitrogen is the concentration of 85-95%, oxygen;
5) doll's dish that controlled atmospheric packing is good is inserted in the freezer and is refrigerated.
In the above-mentioned steps:
Described doll's dish is selected plucking of medium well degree.
Described sorting refers to remove doll's dish that corrupt or appearance damages.
The temperature of pre-freezer is 0 ~ 4 ℃ during described precooling operation, and pre-cool time was more than or equal to 24 hours.
Described sterilization treatment refers in pre-freezer the air sterilization system is set, and adopts ozone gas that doll's dish is sterilized.
Described packing container is the transparent packing box of transparent packing bag or upper strata.
Described packing container is packing box or the packaging bag of low barrier material.
Refrigerated storage temperature in the described freezer is 0 ~ 2 ℃.Packaged fresh doll's dish is stored in 0 ~ 2 ℃ the freezer, can effectively controls the rate of metabolism of fresh doll's dish, reduce its respiratory intensity, the reproduction speed of anti-bacteria.
Embodiment two: a kind of air regulating fresh-keeping method of doll's dish,
As shown in Figure 1, may further comprise the steps:
1, plucks: during harvesting, choose doll's dish of ripe degree about eighty per cant.
2, sorting: screening remove occurred damaging, corrupt doll's dish, prevent from making a difference each other.
3, precooling: in time precooling after plucking, pre-temperature of ice house is 0～4 ℃, pre-cool time is more than 24 hours, guarantees that when preventing cold damage the central temperature of doll's dish reaches requirement; Temperature, the humidity of pre-cold-peace packing will be consistent, and prevent condensed water.
4, sterilization: configuration air sterilization system in the pre-freezer, adopt certain density ozone to sterilize.
5, controlled atmospheric packing: adopt the mode of controlled atmospheric packing to pack the strawberry after precooling, the sterilization, adopt the controlled atmosphere ratio as follows: nitrogen: 85-95%, oxygen: 1-8%, carbon dioxide: 1-6%.
6, warehouse-in: packaged product is put into fresh-keeping warehouse, and the temperature of fresh-keeping warehouse should be controlled at 0～2 ℃, temperature fluctuation is more little more be conducive to fresh-keeping.
Above-described embodiment only is explanation technical conceive of the present invention and characteristics, and its purpose is to allow the personage who is familiar with technique can understand content of the present invention and according to this enforcement, can not limit protection scope of the present invention with this.All equivalences that Spirit Essence is done according to the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (8)
1. the air regulating fresh-keeping method of doll's dish, it is characterized in that: described air regulating fresh-keeping method comprises the steps:
1) to the fresh-keeping doll's dish of need pluck, sorting;
2) the doll's dish after harvesting, the sorting is carried out the precooling operation;
3) the doll's dish after the precooling is carried out sterilization treatment;
4) the doll's dish after will sterilizing places in the packing container, and passes into the mist of oxygen, carbon dioxide and nitrogen in the described packing container, is that the concentration of 1-8%, carbon dioxide is 1-6% so that the concentration of packing container nitrogen is the concentration of 85-95%, oxygen;
5) doll's dish that controlled atmospheric packing is good is inserted in the freezer and is refrigerated.
2. the air regulating fresh-keeping method of doll's dish according to claim 1, it is characterized in that: described doll's dish is selected plucking of medium well degree.
3. the air regulating fresh-keeping method of doll's dish according to claim 1 is characterized in that: described sorting refers to remove corrupt or doll's dish of damage occurs.
4. the air regulating fresh-keeping method of doll's dish according to claim 1 is characterized in that: the temperature of pre-freezer is 0 ~ 4 ℃ during described precooling operation, and pre-cool time was more than or equal to 24 hours.
5. the air regulating fresh-keeping method of doll's dish according to claim 1 is characterized in that: described sterilization treatment refers in pre-freezer the air sterilization system is being set, and adopts ozone gas that doll's dish is sterilized.
6. the air regulating fresh-keeping method of doll's dish according to claim 1, it is characterized in that: described packing container is transparent packing bag or transparent packing box.
7. the air regulating fresh-keeping method of doll's dish according to claim 1 is characterized in that: described packing container is packing box or the packaging bag of low barrier material.
8. the air regulating fresh-keeping method of doll's dish according to claim 1 is characterized in that: the refrigerated storage temperature in the described freezer is 0 ~ 2 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210495767 CN103004965A (en) | 2012-11-29 | 2012-11-29 | Modified atmosphere preservation method of baby cabbage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210495767 CN103004965A (en) | 2012-11-29 | 2012-11-29 | Modified atmosphere preservation method of baby cabbage |
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| CN103004965A true CN103004965A (en) | 2013-04-03 |
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| CN 201210495767 Pending CN103004965A (en) | 2012-11-29 | 2012-11-29 | Modified atmosphere preservation method of baby cabbage |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105746686A (en) * | 2014-12-19 | 2016-07-13 | 上海伊禾农产品科技发展股份有限公司 | Controlled atmosphere preservation method of Capsella bursa-pastoris |
| CN107950643A (en) * | 2017-12-11 | 2018-04-24 | 阜阳市鸿业生态农业科技有限公司 | A kind of preservation method of plum picking |
| CN109466837A (en) * | 2018-09-04 | 2019-03-15 | 河南龙丰实业股份有限公司 | A kind of needle mushroom harvests automatically and technology of the package |
| CN110547324A (en) * | 2019-09-29 | 2019-12-10 | 云南省农业科学院园艺作物研究所 | Storage and preservation method of baby cabbage |
| CN114794222A (en) * | 2022-05-10 | 2022-07-29 | 天津市农业科学院 | Fresh-cut baby cabbage preservation method suitable for market demand and application thereof |
-
2012
- 2012-11-29 CN CN 201210495767 patent/CN103004965A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105746686A (en) * | 2014-12-19 | 2016-07-13 | 上海伊禾农产品科技发展股份有限公司 | Controlled atmosphere preservation method of Capsella bursa-pastoris |
| CN107950643A (en) * | 2017-12-11 | 2018-04-24 | 阜阳市鸿业生态农业科技有限公司 | A kind of preservation method of plum picking |
| CN109466837A (en) * | 2018-09-04 | 2019-03-15 | 河南龙丰实业股份有限公司 | A kind of needle mushroom harvests automatically and technology of the package |
| CN110547324A (en) * | 2019-09-29 | 2019-12-10 | 云南省农业科学院园艺作物研究所 | Storage and preservation method of baby cabbage |
| CN114794222A (en) * | 2022-05-10 | 2022-07-29 | 天津市农业科学院 | Fresh-cut baby cabbage preservation method suitable for market demand and application thereof |
| CN114794222B (en) * | 2022-05-10 | 2023-09-19 | 天津市农业科学院 | Fresh-cut baby cabbage preservation method suitable for market demand and application thereof |
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Application publication date: 20130403 |