CN102835714B - Microwave sterilization method for flexibly packaged food - Google Patents
Microwave sterilization method for flexibly packaged food Download PDFInfo
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- CN102835714B CN102835714B CN201210351351.8A CN201210351351A CN102835714B CN 102835714 B CN102835714 B CN 102835714B CN 201210351351 A CN201210351351 A CN 201210351351A CN 102835714 B CN102835714 B CN 102835714B
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- 238000004659 sterilization and disinfection Methods 0.000 title claims abstract description 119
- 230000001954 sterilising effect Effects 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 title claims abstract description 22
- 235000021485 packed food Nutrition 0.000 title claims abstract description 18
- 235000013305 food Nutrition 0.000 claims abstract description 27
- 238000001035 drying Methods 0.000 claims abstract description 13
- 229920006395 saturated elastomer Polymers 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 33
- 238000009459 flexible packaging Methods 0.000 claims description 19
- 238000001816 cooling Methods 0.000 claims description 9
- 239000007921 spray Substances 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 4
- 230000006641 stabilisation Effects 0.000 claims description 4
- 238000011105 stabilization Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 abstract description 4
- 238000010438 heat treatment Methods 0.000 abstract description 3
- 238000005265 energy consumption Methods 0.000 abstract 1
- 235000012041 food component Nutrition 0.000 abstract 1
- 238000002372 labelling Methods 0.000 description 3
- 235000016709 nutrition Nutrition 0.000 description 3
- 230000000844 anti-bacterial effect Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 244000068988 Glycine max Species 0.000 description 1
- 235000010469 Glycine max Nutrition 0.000 description 1
- 206010023126 Jaundice Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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- Apparatus For Disinfection Or Sterilisation (AREA)
- Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
Abstract
The invention provides a microwave sterilization method for flexibly packaged food; the method comprises the following steps: putting flexibly packaged bagged food into a microwave sterilization chamber; pressurizing the microwave sterilization chamber by compressed air; heating the microwave sterilization chamber to 88-92 DEG C by vapor; after the flexibly packaged bagged food is dehumidified, sterilizing the flexibly packaged food by microwaves; and finally, drying the flexibly packaged food by microwaves. According to the invention, through increasing pressure in the microwave sterilization chamber, the pressure is kept at 0.05-0.07 MPa; saturated vapor is directly used for heating the microwave sterilization chamber, so that the temperature in the microwave sterilization chamber is controlled at 90 DEG C; through microwave sterilization treatment, the sterilization speed is greatly increased, so that the shelf life of the sterilized flexibly packaged food is kept within a range from 6 months to 1 year; the microwave sterilization method for the flexibly packaged food, provided by the invention, is reasonable and convenient in use; a large amount of manpower and material resources are saved; energy consumption is greatly reduced; and the loss of nutritional components in the food is less.
Description
Technical field
The present invention relates to the microwave sterilization method of a kind of method for disinfection, particularly a kind of flexible packaging food.
Background technology
Existing sterilization, sterilizing often adopt following method as:
1, use the drier few article of water content such as killing microwave medicinal powder, tealeaves, paddy, soya bean, timber.
2, use the high-temperature water endless form, flexible packaging food is heated to the flexible package sterilizer, side spray water spray type sterilizer, water-bath type sterilizer of 121 ℃ of sterilizations, sterilizing etc.
3, use steam and compressed air mixing circulation gas,, flexible packaging food is heated to the heat ventilation steam sterilizer of 121 ℃ of sterilizations.
The shortcoming of these several sterilizations, sterilization method:
1, as used microwave to carry out direct sterilization to flexible packaging food, because of liquid, by microwave energy absorption, can not play at short notice bactericidal effect.
2, use in a large number at present the high-temperature water endless form, flexible packaging food is heated to 121 ℃ of sterilizations, sterilizing, its shortcoming: suffer very large destruction and loss in the nutritional labeling of 121 ℃ of lower food exactly; Under higher temperature, the material composition of flexible packaging food has larger change simultaneously; Also consume a large amount of heat energy simultaneously.
3, use steam and compressed air mixing circulation gas, flexible packaging food is heated to the heat ventilation steam sterilizer of 121 ℃ of sterilizations.Its shortcoming is: when circulation is insufficient, there will be sterilization sterilizing dead angle, it is stricter that article are placed requirement; Suffer very large destruction and loss in the nutritional labeling of 121 ℃ of lower food; Under higher temperature, the material composition of flexible packaging food has larger change; Be exactly finally to consume a large amount of heat energy.
Summary of the invention
Technical problem to be solved by this invention is for the deficiencies in the prior art, provides a kind of method reasonable, the microwave sterilization method of the flexible packaging food that bactericidal effect is good.
Technical problem to be solved by this invention is to realize by following technical scheme.The present invention is a kind of microwave sterilization method of flexible packaging food, is characterized in, its step is as follows:
(1) prepare: the packed food of flexible package that will treat sterilization put in vehicle frame, then the interior vehicle frame that will pile article pushes in the microwave disinfection chamber, shuts Qianmen;
(2) heat up: be filled with saturated vapor in the microwave disinfection chamber, open the indoor gas forced circulation system of microwave disinfection chamber simultaneously, top gas is extracted into to bottom, make the indoor gas forced circulation of microwave disinfection; Open the compressed air gas handling system, make the pressure of microwave disinfection chamber remain on 0.05-0.07MPa; Open the condensed water that bottom, microwave disinfection chamber is discharged in lower draining; Control the microwave disinfection indoor temperature and be raised to 88-92 ℃ in 10-15 minutes;
The indoor gas forced circulation system, because advancing steam in bottom, heat is toward rising, again by the indoor gas forced circulation, the steam of the heat at top, microwave disinfection chamber, air are imported to the bottom of microwave disinfection chamber, the gas circulation speed of microwave disinfection chamber is accelerated more greatly like this, and the heating uniformity of soft package foods bag is had to fabulous homogeneous effect, temperature evenly can reach ± 2 ℃ of scopes in;
(3) insulation maintains: keep the indoor temperature stabilization of microwave disinfection, 5 minutes time, the microwave disinfection room pressure remains on 0.05-0.07MPa simultaneously, and the condensed water of bottom, microwave disinfection chamber is discharged in lower draining;
(4) hydrofuge is processed: exhaust in unlatching, get rid of moisture, and get rid of 2-4 minutes moisture time; The microwave disinfection room pressure remains on 0.05-0.07MPa, and the condensed water of bottom, microwave disinfection chamber is discharged in lower draining;
(5) microwave disinfection: continue to carry out the hydrofuge processing, the microwave disinfection room pressure remains on 0.05-0.07MPa, opens microwave generator and carries out sterilization processing, and microwave is opened 1 minute, stops 20 seconds, moves 3 times continuously altogether; This gap method sterilization processing, solved the apparent presentation problem of food up hill and dale, prevents the series of problems such as blackout, jaundice, superheated be rotten;
(6) cooling: the microwave disinfection room pressure remains on 0.05-0.07MPa, opening cooling pure water valve starts into pure water, pure water is sprayed on interior vehicle frame by the uniform minute-pressure of spray web plate at top, microwave disinfection chamber, the packed food temperature of flexible package is reduced, lower draining is opened and is carried out draining, when temperature reaches predetermined chilling temperature, after continuing to maintain 2 minutes into pure water, start to get rid of the indoor pressure of microwave disinfection;
(7) microwave drying: upper exhaust, lower draining are all opened, and open microwave generator and carry out the drying processing, and microwave is opened 1 minute, stops 20 seconds, is total to operation continuously 3 times; After drying is complete, can opens Qianmen and take out the packed food of flexible package.
Technical problem to be solved by this invention can also further realize by following technical scheme, in the step of the microwave sterilization method of above-described flexible packaging food (2), controls the microwave disinfection indoor temperature and be raised to 90 ℃ in 10-15 minutes.
Technical problem to be solved by this invention can also further realize by following technical scheme, and in the step of the microwave sterilization method of above-described flexible packaging food (4), getting rid of the moisture time is 3 minutes.
Compared with prior art, the present invention passes through to the indoor increase pressure of microwave disinfection, and pressure remains on 0.05-0.07MPa, saturated vapor directly heats, control the microwave disinfection indoor temperature at 90 ℃, process by microwave disinfection, greatly improve sterilization speed, make the article shelf storage period of flexible packaging food after sterilization remain on 6 months-1 year in, the method is reasonable, easy to use, has saved a large amount of human and material resources, greatly reduce energy resource consumption, and make the nutritional labeling loss of food few.
The specific embodiment
Further describe concrete technical scheme of the present invention, so that those skilled in the art understands the present invention further, and do not form the restriction to its right.
Embodiment 1, a kind of microwave sterilization method of flexible packaging food, and its step is as follows:
(1) prepare: the packed food of flexible package that will treat sterilization put in vehicle frame, then the interior vehicle frame that will pile article pushes in the microwave disinfection chamber, shuts Qianmen; Check compressed air source and the power supply of steam-out (SO) source, cooling pure water source, cleaning in this stage;
(2) heat up: be filled with saturated vapor in the microwave disinfection chamber, the pressure of vapour source is 0.3-0.6Mpa, opens the indoor gas forced circulation system of microwave disinfection chamber simultaneously, and top gas is extracted into to bottom, makes the indoor gas forced circulation of microwave disinfection; Open the compressed air gas handling system, make the pressure of microwave disinfection chamber remain on 0.05-0.07MPa; Open the condensed water that bottom, microwave disinfection chamber is discharged in lower draining; Control the microwave disinfection indoor temperature and be raised to 88-92 ℃ in 10-15 minutes;
(3) insulation maintains: keep the indoor temperature stabilization of microwave disinfection, 5 minutes time, the microwave disinfection room pressure remains on 0.05-0.07MPa simultaneously, and the condensed water of bottom, microwave disinfection chamber is discharged in lower draining;
(4) hydrofuge is processed: exhaust in unlatching, get rid of moisture, and get rid of 2-4 minutes moisture time; The microwave disinfection room pressure remains on 0.05-0.07MPa, and the condensed water of bottom, microwave disinfection chamber is discharged in lower draining;
(5) microwave disinfection: continue to carry out the hydrofuge processing, the microwave disinfection room pressure remains on 0.05-0.07MPa, opens microwave generator and carries out sterilization processing, and microwave is opened 1 minute, stops 20 seconds, moves 3 times continuously altogether;
(6) cooling: the microwave disinfection room pressure remains on 0.05-0.07MPa, opening cooling pure water valve starts into pure water, pure water is sprayed on interior vehicle frame by the uniform minute-pressure of spray web plate at top, microwave disinfection chamber, the packed food temperature of flexible package is reduced, lower draining is opened and is carried out draining, when temperature reaches predetermined chilling temperature, after continuing to maintain 2 minutes into pure water, start to get rid of the indoor pressure of microwave disinfection;
(7) microwave drying: upper exhaust, lower draining are all opened, and open microwave generator and carry out the drying processing, and microwave is opened 1 minute, stops 20 seconds, is total to operation continuously 3 times; After drying is complete, can opens Qianmen and take out the packed food of flexible package.
Embodiment 2, a kind of microwave sterilization method of flexible packaging food, and its step is as follows:
(1) prepare: the packed food of flexible package that will treat sterilization put in vehicle frame, then the interior vehicle frame that will pile article pushes in the microwave disinfection chamber, shuts Qianmen;
(2) heat up: be filled with saturated vapor in the microwave disinfection chamber, open the indoor gas forced circulation system of microwave disinfection chamber simultaneously, top gas is extracted into to bottom, make the indoor gas forced circulation of microwave disinfection; Open the compressed air gas handling system, make the pressure of microwave disinfection chamber remain on 0.05-0.07MPa; Open the condensed water that bottom, microwave disinfection chamber is discharged in lower draining; Control the microwave disinfection indoor temperature and be raised to 90 ℃ in 10-15 minutes;
(3) insulation maintains: keep the indoor temperature stabilization of microwave disinfection, 5 minutes time, the microwave disinfection room pressure remains on 0.05-0.07MPa simultaneously, and the condensed water of bottom, microwave disinfection chamber is discharged in lower draining;
(4) hydrofuge is processed: exhaust in unlatching, get rid of moisture, and get rid of 3 minutes moisture time; The microwave disinfection room pressure remains on 0.05-0.07MPa, and the condensed water of bottom, microwave disinfection chamber is discharged in lower draining;
(5) microwave disinfection: continue to carry out the hydrofuge processing, the microwave disinfection room pressure remains on 0.05-0.07MPa, opens microwave generator and carries out sterilization processing, and microwave is opened 1 minute, stops 20 seconds, moves 3 times continuously altogether;
(6) cooling: the microwave disinfection room pressure remains on 0.05-0.07MPa, opening cooling pure water valve starts into pure water, pure water is sprayed on interior vehicle frame by the uniform minute-pressure of spray web plate at top, microwave disinfection chamber, the packed food temperature of flexible package is reduced, lower draining is opened and is carried out draining, when temperature reaches predetermined chilling temperature, after continuing to maintain 2 minutes into pure water, start to get rid of the indoor pressure of microwave disinfection;
(7) microwave drying: upper exhaust, lower draining are all opened, and open microwave generator and carry out the drying processing, and microwave is opened 1 minute, stops 20 seconds, is total to operation continuously 3 times; After drying is complete, can opens Qianmen and take out the packed food of flexible package.
Claims (3)
1. the microwave sterilization method of a flexible packaging food, is characterized in that, its step is as follows:
(1) prepare: the packed food of flexible package that will treat sterilization put in vehicle frame, then the interior vehicle frame that will pile article pushes in the microwave disinfection chamber, shuts Qianmen;
(2) heat up: be filled with saturated vapor in the microwave disinfection chamber, open the indoor gas forced circulation system of microwave disinfection chamber simultaneously, top gas is extracted into to bottom, make the indoor gas forced circulation of microwave disinfection; Open the compressed air gas handling system, make the pressure of microwave disinfection chamber remain on 0.05-0.07MPa; Open the condensed water that bottom, microwave disinfection chamber is discharged in lower draining; Control the microwave disinfection indoor temperature and be raised to 88-92 ℃ in 10-15 minutes;
(3) insulation maintains: keep the indoor temperature stabilization of microwave disinfection, 5 minutes time, the microwave disinfection room pressure remains on 0.05-0.07MPa simultaneously, and the condensed water of bottom, microwave disinfection chamber is discharged in lower draining;
(4) hydrofuge is processed: exhaust in unlatching, get rid of moisture, and get rid of 2-4 minutes moisture time; The microwave disinfection room pressure remains on 0.05-0.07MPa, and the condensed water of bottom, microwave disinfection chamber is discharged in lower draining;
(5) microwave disinfection: continue to carry out the hydrofuge processing, the microwave disinfection room pressure remains on 0.05-0.07MPa, opens microwave generator and carries out sterilization processing, and microwave is opened 1 minute, stops 20 seconds, moves 3 times continuously altogether;
(6) cooling: the microwave disinfection room pressure remains on 0.05-0.07MPa, opening cooling pure water valve starts into pure water, pure water is sprayed on interior vehicle frame by the uniform minute-pressure of spray web plate at top, microwave disinfection chamber, the packed food temperature of flexible package is reduced, lower draining is opened and is carried out draining, when temperature reaches predetermined chilling temperature, after continuing to maintain 2 minutes into pure water, start to get rid of the indoor pressure of microwave disinfection;
(7) microwave drying: upper exhaust, lower draining are all opened, and open microwave generator and carry out the drying processing, and microwave is opened 1 minute, stops 20 seconds, is total to operation continuously 3 times; After drying is complete, can opens Qianmen and take out the packed food of flexible package.
2. the microwave sterilization method of flexible packaging food according to claim 1, is characterized in that, in step (2), controls the microwave disinfection indoor temperature and be raised to 90 ℃ in 10-15 minutes.
3. the microwave sterilization method of flexible packaging food according to claim 1, is characterized in that, in step (4), getting rid of the moisture time is 3 minutes.
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| CN201210351351.8A CN102835714B (en) | 2012-09-20 | 2012-09-20 | Microwave sterilization method for flexibly packaged food |
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| US11229095B2 (en) | 2014-12-17 | 2022-01-18 | Campbell Soup Company | Electromagnetic wave food processing system and methods |
| CN105667901A (en) * | 2016-02-22 | 2016-06-15 | 吉首大学 | Method for sterilizing vacuum-packed bagged foods |
| CN105667902B (en) * | 2016-02-22 | 2017-12-01 | 张新兴 | Batch (-type) back-pressure microwave sterilizing device |
| CN105775250B (en) * | 2016-03-08 | 2018-02-13 | 吉首大学 | Batch (-type) back-pressure microwave sterilization drying device |
| CN105767838B (en) * | 2016-03-08 | 2019-06-25 | 湖南先伟实业有限公司 | Continous way back-pressure microwave sterilization drying device |
| KR101907743B1 (en) * | 2016-08-05 | 2018-10-12 | 씨제이제일제당 (주) | Retort sterilization methods comprising microwave heating pretreatment |
| CN108271993A (en) * | 2018-01-05 | 2018-07-13 | 中国农业科学院农产品加工研究所 | The meat dish industrial process that meat and vegetables separately stews |
| CN114955114A (en) * | 2022-06-16 | 2022-08-30 | 江苏仅一联合智造有限公司 | Liquid multi-column flexible packaging equipment with sterile room |
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| JP3447199B2 (en) * | 1997-06-16 | 2003-09-16 | 不二製油株式会社 | Manufacturing method of sealed packaged food |
| JP3420707B2 (en) * | 1998-09-30 | 2003-06-30 | 不二製油株式会社 | Continuous microwave heating sterilizer |
| CN1332984A (en) * | 2001-08-07 | 2002-01-30 | 徐寿海 | Pressure sterilizing after-treatment method for flexible package |
| CN101507823A (en) * | 2009-02-23 | 2009-08-19 | 新疆大学 | Microwave sterilization method and device |
| CN202566201U (en) * | 2012-04-28 | 2012-12-05 | 广东无尽食品有限公司 | Horizontal type sterilization kettle for food production |
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Denomination of invention: Microwave sterilization method for flexibly packaged food Effective date of registration: 20200326 Granted publication date: 20140108 Pledgee: Jiangsu Credit Financing Guarantee Co., Ltd. Pledgor: Lianyungang Youyuan Medical Equipment Manufacturing Co.,Ltd. Registration number: Y2020980001048 |
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Date of cancellation: 20201215 Granted publication date: 20140108 Pledgee: Jiangsu Credit Financing Guarantee Co.,Ltd. Pledgor: Lianyungang Youyuan Medical Equipment Manufacturing Co.,Ltd. Registration number: Y2020980001048 |
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Denomination of invention: A microwave sterilization method for soft packaged food Effective date of registration: 20220120 Granted publication date: 20140108 Pledgee: Jiangsu Credit Financing Guarantee Co.,Ltd. Pledgor: Lianyungang Youyuan Medical Equipment Manufacturing Co.,Ltd. Registration number: Y2022980000817 |
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Date of cancellation: 20220617 Granted publication date: 20140108 Pledgee: Jiangsu Credit Financing Guarantee Co.,Ltd. Pledgor: Lianyungang Youyuan Medical Equipment Manufacturing Co.,Ltd. Registration number: Y2022980000817 |