CN103004960A - Modified atmosphere preservation method of blueberry - Google Patents
Modified atmosphere preservation method of blueberry Download PDFInfo
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- CN103004960A CN103004960A CN 201210496005 CN201210496005A CN103004960A CN 103004960 A CN103004960 A CN 103004960A CN 201210496005 CN201210496005 CN 201210496005 CN 201210496005 A CN201210496005 A CN 201210496005A CN 103004960 A CN103004960 A CN 103004960A
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Abstract
The invention discloses a modified atmosphere preservation method of blueberry. The picked fresh blueberry is precooled and put in a packaging container; 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 packaged blueberry is refrigerated in a refrigeration house at the temperature of 0-2 DEG C. According to the method, the freshness, the color and the taste of the blueberry which is extremely easy to oxidize and discolor can be kept within 35 days. The quality of the blueberry is ensured.
Description
Technical field
The invention belongs to the food preservative technology field, relate to a kind of air regulating fresh-keeping method of blueberry.
Background technology
Blueberry is berry, and its water content is high, breathes vigorously, and moisture loss is fast, and easy bacteria infection.In addition, the blueberry listing phase is comparatively concentrated, the gathering during the peak of open country production, temperature is higher, results, transportation, storage and sell in very easily be mechanically damaged and suffer microorganism to contaminate and cause rotting, become and lose, its freshness date is shorter.Generally speaking, ripe blueberry is placed at normal temperatures and was just begun variable color, spoiled in 1 ~ 2 day, loses commodity value.In the prior art, the blueberry preserved refrigerations of adopting namely can be preserved about 7 days under 0 ℃ low temperature, 90% ~ 95% relative humidity more.Although refrigeration can be postponed the disadvantageous changes of fruit, after blueberry took out from freezer, it ruined velocity ratio also wanting soon without refrigeration.
Therefore, study the blueberry preserved important using value that has.
Summary of the invention
The invention provides a kind of air regulating fresh-keeping method of blueberry, that its purpose is is fresh with interior maintenance at 25 days to the blueberry that is very easy to oxidation stain, color and taste are constant.
For achieving the above object, the technical solution used in the present invention is: a kind of air regulating fresh-keeping method of blueberry, with the blueberry of fresh harvesting in precooling is placed on packing container, and pass into the mist of oxygen, carbon dioxide and three kinds of gases of nitrogen in the described packing container, be 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, packaged blueberry inserted refrigeration in 0 ~ 2 ℃ the freezer.
Related content in the technique scheme is explained as follows:
1, in the such scheme, the blueberry of described fresh harvesting is the blueberry of medium well degree.
2, in the such scheme, during described blueberry precooling, its pre-temperature of ice house is 0 ~ 2 ℃, and pre-cool time was more than or equal to 24 hours.
3, in the such scheme, described blueberry is when precooling, and configuration air sterilization system adopts ozone to sterilize in the pre-freezer.
4, in the such scheme, described packing container is packaging bag.
5, in the such scheme, described packing container is packing box.
6, in the such scheme, described packing container is packing box or the packaging bag of low barrier material.
7, in the such scheme, packaged blueberry is stored in 0 ~ 2 ℃ the freezer, the rate of metabolism of the little fresh blueberry of control can be arranged, reduce its respiratory intensity, the reproduction speed of anti-bacteria.
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 blueberry 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 blueberry, suppress metabolism, control bacterial reproduction, thereby make blueberry reach freshness date (can make controlled atmosphere chain and cold chain reach complete combination) more than 25 days.
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 blueberry 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 one;
Accompanying drawing 2 is the inventive method flowchart 2.
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 blueberry, with the blueberry of fresh harvesting in precooling is placed on packing container, and pass into the mist of oxygen, carbon dioxide and three kinds of gases of nitrogen in the described packing container, be 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, packaged blueberry inserted refrigeration in 0 ~ 2 ℃ the freezer.
The blueberry of described fresh harvesting is the blueberry of medium well degree.
During described blueberry precooling, its pre-temperature of ice house is 0 ~ 2 ℃, and pre-cool time was more than or equal to 24 hours.
Described blueberry is when precooling, and configuration air sterilization system adopts ozone to sterilize in the pre-freezer.
Described packing container is packaging bag.Described packing container is packing box.Described packing container is packing box or the packaging bag of low barrier material.
Packaged blueberry is stored in 0 ~ 2 ℃ the freezer, the rate of metabolism of the little fresh blueberry of control can be arranged, reduce its respiratory intensity, the reproduction speed of anti-bacteria.
Embodiment two: a kind of air regulating fresh-keeping method of blueberry,
As shown in Figure 1, may further comprise the steps:
1, plucks: during harvesting, choose the blueberry of ripe degree about eighty per cant.
2, sorting: screening remove occurred damaging, corrupt blueberry, prevent from making a difference each other.
3, precooling: in time precooling after plucking, pre-temperature of ice house is 0～2 ℃, pre-cool time is more than 24 hours, guarantees that when preventing cold damage the central temperature of blueberry 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 blueberry 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.
Embodiment three: a kind of air regulating fresh-keeping method of blueberry,
As shown in Figure 2, may further comprise the steps:
1, plucks: during harvesting, choose the blueberry of ripe degree about eighty per cant.
2, sorting: screening remove occurred damaging, corrupt blueberry, prevent from making a difference each other.
3, precooling: in time precooling after plucking, pre-temperature of ice house is 0～2 ℃, pre-cool time is more than 24 hours, guarantees that when preventing cold damage the central temperature of blueberry reaches requirement; Temperature, the humidity of pre-cold-peace packing will be consistent, and prevent condensed water.
4, rinsing: adopt aseptic purifying waste water that blueberry is carried out rinsing.
5, sterilization: configuration air sterilization system in the pre-freezer, adopt certain density ozone to sterilize.
6, drain: the blueberry after will sterilizing spread drain away the water at screen cloth for subsequent use.
7, controlled atmospheric packing: adopt the mode of controlled atmospheric packing to pack the blueberry after precooling, the sterilization, adopt the controlled atmosphere ratio as follows: nitrogen: 85-95%, oxygen: 1-8%, carbon dioxide: 1-6%.
8, 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 (7)
1. the air regulating fresh-keeping method of a blueberry, it is characterized in that: with the blueberry of fresh harvesting in precooling is placed on packing container, and pass into the mist of oxygen, carbon dioxide and three kinds of gases of nitrogen in the described packing container, be 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, packaged blueberry inserted refrigeration in 0 ~ 2 ℃ the freezer.
2. the air regulating fresh-keeping method of blueberry according to claim 1, it is characterized in that: the blueberry of described fresh harvesting is the blueberry of medium well degree.
3. the air regulating fresh-keeping method of blueberry according to claim 1, it is characterized in that: during described blueberry precooling, its pre-temperature of ice house is 0 ~ 2 ℃, pre-cool time was more than or equal to 24 hours.
4. the air regulating fresh-keeping method of blueberry according to claim 1 is characterized in that: described blueberry is when precooling, and configuration air sterilization system adopts ozone to sterilize in the pre-freezer.
5. the air regulating fresh-keeping method of blueberry according to claim 1, it is characterized in that: described packing container is packaging bag.
6. the air regulating fresh-keeping method of blueberry according to claim 1, it is characterized in that: described packing container is packing box.
7. it is characterized in that according to claim 5 or the air regulating fresh-keeping method of 6 described blueberries: described packing container is packing box or the packaging bag of low barrier material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210496005 CN103004960A (en) | 2012-11-29 | 2012-11-29 | Modified atmosphere preservation method of blueberry |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210496005 CN103004960A (en) | 2012-11-29 | 2012-11-29 | Modified atmosphere preservation method of blueberry |
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| CN103004960A true CN103004960A (en) | 2013-04-03 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104886232A (en) * | 2015-06-19 | 2015-09-09 | 湖北智联行现代农业科技有限公司 | Kiwi fruit storage method and packaging equipment |
| CN105123911A (en) * | 2015-08-19 | 2015-12-09 | 华中农业大学 | Biological prevention and treatment method of gray mold of postharvest blueberries |
| CN107455452A (en) * | 2017-07-14 | 2017-12-12 | 湖北省农业科学院农产品加工与核农技术研究所 | A kind of berry slow-release preservative and preservation method |
| CN108497045A (en) * | 2018-03-19 | 2018-09-07 | 贵州金农辐照科技有限责任公司 | A kind of blueberry comprehensive fresh-keeping method |
| CN113180102A (en) * | 2021-05-12 | 2021-07-30 | 云南云蓝蓝莓科技开发有限公司 | Blueberry storage and preservation method |
-
2012
- 2012-11-29 CN CN 201210496005 patent/CN103004960A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104886232A (en) * | 2015-06-19 | 2015-09-09 | 湖北智联行现代农业科技有限公司 | Kiwi fruit storage method and packaging equipment |
| CN105123911A (en) * | 2015-08-19 | 2015-12-09 | 华中农业大学 | Biological prevention and treatment method of gray mold of postharvest blueberries |
| CN107455452A (en) * | 2017-07-14 | 2017-12-12 | 湖北省农业科学院农产品加工与核农技术研究所 | A kind of berry slow-release preservative and preservation method |
| CN108497045A (en) * | 2018-03-19 | 2018-09-07 | 贵州金农辐照科技有限责任公司 | A kind of blueberry comprehensive fresh-keeping method |
| CN113180102A (en) * | 2021-05-12 | 2021-07-30 | 云南云蓝蓝莓科技开发有限公司 | Blueberry storage and preservation method |
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Application publication date: 20130403 |