CN105029634A - Gas-adjustment freshness-maintaining packaging method for cold chain central kitchen - Google Patents
Gas-adjustment freshness-maintaining packaging method for cold chain central kitchen Download PDFInfo
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- CN105029634A CN105029634A CN201510550729.0A CN201510550729A CN105029634A CN 105029634 A CN105029634 A CN 105029634A CN 201510550729 A CN201510550729 A CN 201510550729A CN 105029634 A CN105029634 A CN 105029634A
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- container
- gas
- nitrogen
- sealing machine
- maintaining
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Classifications
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
- A23L3/34—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals
- A23L3/3409—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals in the form of gases, e.g. fumigation; Compositions or apparatus therefor
- A23L3/3418—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals 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
Abstract
The invention discloses a gas-adjustment freshness-maintaining packaging method for a cold chain central kitchen. The gas-adjustment freshness-maintaining packaging method includes the following steps that A, according to preheating, a sealing machine is preheated to a set temperature; B, according to nitrogen generation, nitrogen is pressurized to a set pressure to be used; C, according to food transportation, a container is transported into a bottom die of the sealing machine; D, according to film pressing, a packaging film covers the container to be packaged; E, according to gas replacement, air inside the bottom die of the sealing machine is first pumped away, and then nitrogen is injected; F, according to sealing, the sealing machine is used for packaging the packaging film on the surface of the container so as to seal the container. By the adoption of the gas-adjustment freshness-maintaining method, for the filled container, the mode that vacuumizing is performed, and then freshness-maintaining gas filling is performed is implemented, and the replacement rate of gas can reach 99%; by the adoption of the method, it can be ensured that twenty thousand containers are packaged within eight hours, and therefore the gas-adjustment freshness-maintaining packaging method has the advantages of being high in gas-adjustment freshness-maintaining function and replacement rate of gas.
Description
Technical field
The invention belongs to the production technology of cold chain central authorities kitchen food, be specifically related to the controlled atmosphere method for packing in a kind of cold chain central authorities kitchen.
Background technology
Along with the progress of society and the raising of people's living standard, and the quickening of live and work rhythm, the variation of life content, no matter be for subjective or objective consideration, people in for three meals in a day the work that spends and the time fewer and feweri, also increasing to the demand of instant staple food, the frequency that the instant food of the classes such as such as instant noodles, convenient rice noodle, instant-rice appears on people's key table increases day by day, and such present situation and demand also promote socialization that family cooks, industrialization.Antistaling instant food has catered to such requirement background and has produced.Freshness-keeping instant rice (also claiming fresh rice or instant fresh rice) should be one of food be wherein esthetically acceptable to the consumers most.So-called fresh rice, refer to that slaking also has the rice goods in certain storage time through suitably packing, also wet method instant-rice is claimed, this rice goods have normal water content, through suitable packaging and sterilization processing, can put on market, through suitably heating or not needing heating and edible after consumer buys.
It is CN102657309A that State Intellectual Property Office discloses publication number on September 12nd, 2012, name is called a kind of application for a patent for invention document of processing method of fresh rice, the processing method of the document, comprise the steps: A) soaking disinfection, disinfectant is added to sealing fermentation vat, the grain of rice soaks certain hour via fermentation vat; B) steam sterilization, enter in steam box through the grain of rice soaked out, utilize the heating tube disinfectant heated in tank to produce disinfectant steam and carry out two-stage sterilization; C) cooling sterilization, the rice steaming out through steam box, via cooling sterilization pool, adds disinfectant in cooling sterilization pool, and rice is cooled by disinfectant through cooling sterilization pool; D) mounted box, cools from the sterilization of cooling sterilization pool the rice breaing up out, is filled in box; E) sterilizing before sealing, utilizes sterilization water generates steam to carry out sterilization treatment at enclosed cavity the packed meal installing rice; F) seal, the packed meal of sterilizing is delivered in containing vacuum sealing machine and seals; G) sterilizing after sealing, the packed meal sealed, then carry out sterilizing place.
In the step F of above-mentioned patent, the packed meal of sterilizing is delivered in containing vacuum sealing machine and seals, that is, employing be the mode vacuumized, be not filled with nitrogen in a reservoir, therefore it is short to there is fresh keeping time, fresh-keeping effect is low, is unfavorable for the preservation of food.
Summary of the invention
The object of this invention is to provide one, to have controlled atmosphere effect high, the controlled atmosphere method for packing in the cold chain central authorities kitchen of the replacement rate high of gas.
For achieving the above object, the technical solution adopted in the present invention is:
The controlled atmosphere method for packing in cold chain central authorities kitchen, comprises the following steps: A, preheating: sealing machine is preheating to design temperature in advance; B, nitrogen processed: start nitrogen making machine and make nitrogen, and nitrogen pressurization is for subsequent use to setting pressure; C, food products transport: put into container to be packaged by food, by container transport in the bed die of sealing machine; D, press mold: packaging film is covered on container to be packaged; E, gas displacement: first the air in the bed die of sealing machine is taken away, then nitrogen injection, nitrogen is filled with the container to be packaged in whole bed die; F, sealing: utilize sealing machine packaging film to be encapsulated in the surface of container, realize the sealing to container.
In described step B, the setting pressure of nitrogen is 1.5pa.
In described step F, the pressure of the nitrogen in described container is 1.01pa ~ 1.15pa.
Beneficial effect of the present invention: owing to adopting above-mentioned air regulating fresh-keeping method, to the container be filled with, implement first to vacuumize, the mode of the fresh-keeping gas of rear filling, can make the replacement rate of gas reach 99%; Adopt said method, can guarantee in 8 hours, to reach packaging container 20,000 parts, therefore it is high to have controlled atmosphere effect, the feature that the replacement rate of gas is high.
Detailed description of the invention
Embodiment 1
The controlled atmosphere method for packing in cold chain central authorities kitchen, comprises the following steps:
A, preheating: sealing machine is preheating to design temperature in advance;
B, nitrogen processed: start nitrogen making machine and make nitrogen, and nitrogen pressurization is for subsequent use to setting pressure, and the setting pressure of nitrogen is 1.5pa;
C, food products transport: put into container to be packaged by food, by container transport in the bed die of sealing machine;
D, press mold: packaging film is covered on container to be packaged;
E, gas displacement: first the air in the bed die of sealing machine is taken away, then nitrogen injection, nitrogen is filled with the container to be packaged in whole bed die;
F, sealing: utilize sealing machine packaging film to be encapsulated in the surface of container, realize the sealing to container, the pressure of the nitrogen in described container is 1.01pa ~ 1.15pa.
Claims (3)
1. the controlled atmosphere method for packing in cold chain central authorities kitchen, is characterized in that: comprise the following steps: A, preheating: sealing machine is preheating to design temperature in advance; B, nitrogen processed: start nitrogen making machine and make nitrogen, and nitrogen pressurization is for subsequent use to setting pressure; C, food products transport: put into container to be packaged by food, by container transport in the bed die of sealing machine; D, press mold: packaging film is covered on container to be packaged; E, gas displacement: first the air in the bed die of sealing machine is taken away, then nitrogen injection, nitrogen is filled with the container to be packaged in whole bed die; F, sealing: utilize sealing machine packaging film to be encapsulated in the surface of container, realize the sealing to container.
2. the controlled atmosphere method for packing in cold chain central authorities according to claim 1 kitchen, it is characterized in that: in described step B, the setting pressure of nitrogen is 1.5pa.
3. the controlled atmosphere method for packing in cold chain central authorities according to claim 1 kitchen, it is characterized in that: in described step F, the pressure of the nitrogen in described container is 1.01pa ~ 1.15pa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510550729.0A CN105029634A (en) | 2015-09-01 | 2015-09-01 | Gas-adjustment freshness-maintaining packaging method for cold chain central kitchen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510550729.0A CN105029634A (en) | 2015-09-01 | 2015-09-01 | Gas-adjustment freshness-maintaining packaging method for cold chain central kitchen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105029634A true CN105029634A (en) | 2015-11-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510550729.0A Pending CN105029634A (en) | 2015-09-01 | 2015-09-01 | Gas-adjustment freshness-maintaining packaging method for cold chain central kitchen |
Country Status (1)
| Country | Link |
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| CN (1) | CN105029634A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1631735A (en) * | 2005-02-02 | 2005-06-29 | 苏明智 | Packaging and fresh-keeping method for foodstuff |
| CN201276217Y (en) * | 2008-10-13 | 2009-07-22 | 高传宝 | Fresh-keeping packaging apparatus |
| CN104443509A (en) * | 2014-09-28 | 2015-03-25 | 李双玉 | Cooked food vacuum packing method and vacuum packed cooked food |
| CN104691953A (en) * | 2015-02-28 | 2015-06-10 | 同福碗粥股份有限公司 | Packing technique of porridge |
-
2015
- 2015-09-01 CN CN201510550729.0A patent/CN105029634A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1631735A (en) * | 2005-02-02 | 2005-06-29 | 苏明智 | Packaging and fresh-keeping method for foodstuff |
| CN201276217Y (en) * | 2008-10-13 | 2009-07-22 | 高传宝 | Fresh-keeping packaging apparatus |
| CN104443509A (en) * | 2014-09-28 | 2015-03-25 | 李双玉 | Cooked food vacuum packing method and vacuum packed cooked food |
| CN104691953A (en) * | 2015-02-28 | 2015-06-10 | 同福碗粥股份有限公司 | Packing technique of porridge |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151111 |