CN1843857A - Radiation method for sterilizing pet food - Google Patents
Radiation method for sterilizing pet food Download PDFInfo
- Publication number
- CN1843857A CN1843857A CN 200610040128 CN200610040128A CN1843857A CN 1843857 A CN1843857 A CN 1843857A CN 200610040128 CN200610040128 CN 200610040128 CN 200610040128 A CN200610040128 A CN 200610040128A CN 1843857 A CN1843857 A CN 1843857A
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- Prior art keywords
- pet food
- sterilizing
- radiation
- irradiation
- food
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- 235000013305 food Nutrition 0.000 title claims abstract description 51
- 238000000034 method Methods 0.000 title claims abstract description 25
- 230000005855 radiation Effects 0.000 title claims description 37
- 230000001954 sterilising effect Effects 0.000 title claims description 37
- 238000012856 packing Methods 0.000 claims abstract description 12
- 238000007789 sealing Methods 0.000 claims abstract description 3
- 231100000987 absorbed dose Toxicity 0.000 claims description 15
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 238000009930 food irradiation Methods 0.000 claims description 2
- 241000894006 Bacteria Species 0.000 abstract description 11
- 241000607142 Salmonella Species 0.000 abstract description 10
- 235000019750 Crude protein Nutrition 0.000 abstract description 2
- 150000001413 amino acids Chemical class 0.000 abstract description 2
- 235000019784 crude fat Nutrition 0.000 abstract description 2
- 239000004698 Polyethylene Substances 0.000 abstract 2
- 239000006096 absorbing agent Substances 0.000 abstract 2
- 229920000573 polyethylene Polymers 0.000 abstract 2
- 230000000813 microbial effect Effects 0.000 abstract 1
- 235000016709 nutrition Nutrition 0.000 abstract 1
- 230000035764 nutrition Effects 0.000 abstract 1
- 239000004033 plastic Substances 0.000 abstract 1
- 229920003023 plastic Polymers 0.000 abstract 1
- -1 polyethylene Polymers 0.000 abstract 1
- 238000004659 sterilization and disinfection Methods 0.000 description 11
- 238000011160 research Methods 0.000 description 4
- 241001465754 Metazoa Species 0.000 description 3
- 241000272201 Columbiformes Species 0.000 description 2
- 235000015278 beef Nutrition 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 210000000988 bone and bone Anatomy 0.000 description 2
- 210000000481 breast Anatomy 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 235000013372 meat Nutrition 0.000 description 2
- 230000002906 microbiologic effect Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 241000282326 Felis catus Species 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- 238000010171 animal model Methods 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 244000052616 bacterial pathogen Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 235000019197 fats Nutrition 0.000 description 1
- 230000003031 feeding effect Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000474 nursing effect Effects 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 235000008935 nutritious Nutrition 0.000 description 1
- 230000000050 nutritive effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 235000019629 palatability Nutrition 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Apparatus For Disinfection Or Sterilisation (AREA)
- Fodder In General (AREA)
Abstract
The invention relates to a radiate disinfect method of pet food, which is characterized in that: packing the pet food into transparent polyethylene (PE) plastic packing bag, to be vacuum packed and sealed; filling it into corrugated paper box and sealing the box; using 60Co gamma radial to radiate and disinfect on former package, while the amount of radiate disinfect absorber is 3-8kGy and the non-uniformity of absorber is less than 1.38. The invention can significantly reduce the content of microbial in pet food, while the bacteria number can be reduced under 1000cfu/g, the coliform number can be reduced under 30MPN/100g, the mildew and salmonella will not be detected; in addition, the main nutrition components as crude protein, crude fat, total sugar and amino acid will not be changed. The invention has simple operation, lower cost, and wider application. It can be stored in normal temperature while the conserve time can be over one year.
Description
One, technical field
The present invention relates to the radiation method for sterilizing of pet food, be exclusively used in the disinfection of pet food.
Two, technical background
In recent years, raise house pet (cat, dog etc.) and become a kind of social fashion.People not only need to support, and wish foster health, active, lovely, for the raiser increases infinite enjoyment.Therefore, the food of nursing should be nutritious, balanced, good palatability, safety and sanitation again.Along with the rise of external pet industry, the pet boundless vital force of having broken out already, the market demand of outlet pet foods such as dog chew rapidly increases.Traditional method for disinfection all because of the limitation of himself, can't guarantee the hygienic quality of product as autoclaving and chemical sterilization, can not satisfy abroad the strict demand to import pet food microbiological indicator.The sterilizing problem was once becoming the principal element of puzzlement China pet food outlet.
The seventies in 20th century, the research of irradiated feed is extensively carried out in the world, has carried out a large amount of research as many countries such as the former Soviet Union, Canada at aspects such as the bactericidal effect of irradiated feed, nutritive value, feeding effects.Some national animal used as test feed sterilizations begin to enter the stage of commercially producing subsequently.Up to now, national expenditures 25kGy irradiation such as Britain, France, Japan are produced the history that aseptic feed all had 30 years.China has especially obtained remarkable effect aspect germfree animal and the SPF experimental animal feed irradiation sterilization since the mid-80 begins this research.Lin Qin etc. " research of feed for pet irradiation preservation technique " result shows: adopt the 14.50kGy irradiation dose can make this product sterilization assurance level (SAL) reach 10
-6The irradiation sterilization dosage that these irradiation sterilization methods adopted is all very high, mostly more than 14.50kGy, can only be as the sterilizing dose of aseptic feed and SPF animal feed, and can not be as the sterilization of domestic pets food and fresh-keeping.
Three, summary of the invention
Technical matters the objective of the invention is to overcome the deficiency of above-mentioned prior art, and a kind of radiation method for sterilizing of the pet food of commercially producing is provided.
Technical scheme realizes that the concrete technical solution of foregoing invention purpose is as follows:
The radiation method for sterilizing of pet food is characterized in that:
A) pet food of 1.0～1.8kg is packed into food pack, under normal temperature condition, vacuum-packed, vacuum seal, per then 5～20 bags is 1 group, the carton and tightly sealing of packing into;
B) under normal temperature, original packing condition, the leak free pet food is used
60The Co-gamma radiation carries out radiation treatment, and radiation sterilizing absorbed dose scope is 3～8kGy.
The radiation method for sterilizing of above-mentioned pet food is characterized in that: pet food pack into behind the food pack per 5～20 bags be 1 group, 50 * 40 * 30cm packs into
3～60 * 50 * 40cm
3Corrugated case tightly seal.In the irradiation process, adopt product from moving the face irradiation devices, make the interior pet food irradiation absorbed dose of case even, the ratio of its maximum absorbed dose and minimal absorption dosage answers＜1.38.
The product that radiation method for sterilizing obtained with above-mentioned pet food is: total number of bacteria content is lower than below the 1000cfu/g, and coliform content is lower than below the 30MPN/100g, and mould and salmonella must not detect, and radiation sterilizing absorbed dose scope is 3～8kGy.Pet food after the radiation treatment is stored at normal temperatures, and the shelf-life can reach more than 1 year.
Beneficial effect method provided by the invention has following advantage:
(1) adopts effective sterilization dose scientific and normally, both reduced radiation sterilizing dosage, saved energy consumption and productive costs again, shortened exposure time and production cycle, significantly improved benefit.
(2) adopt vacuum-packedly, effectively control and reduced the problem of oxidation of pet food fat and protein in the irradiation processing process, guaranteed the quality of irradiation products.
(3) adopt radiation method for sterilizing of the present invention, pet food is commercially produced application in enormous quantities, after testing, the initial bacteria containing amount of pet food is up to 5.0 * 10
6Cfu/g, coliform are 6.8 * 10
5MPN/100g after the radiation treatment, detects according to the state health standards prescriptive procedure, and total number of bacteria reduces to 950cfu/g, and coliform reduces in the 30MPN/100g, and mould and salmonella do not detect, and product design reaches American-European standard.
(4) the inventive method can be operated under normal temperature condition, and the product after the radiation treatment is stored at normal temperatures, greatly reduces energy consumption and cost.
In sum, adopt the radiation method for sterilizing among the present invention can significantly reduce the content of various germs in the pet food, total number of bacteria is reduced to below the 1000cfu/g, coliform is reduced to below the 30MPN/100g, mould and salmonella do not detect, and can keep main nutrient composition such as crude protein in the pet food, crude fat, total reducing sugar, amino acid and appearance luster and peculiar mouthfeel constant.Facts have proved for many years, irradiation technique are applied to the pet food sterilization, and this method is easy and simple to handle, and quick, cost is low, but widespread use.
Four, the specific embodiment
Below in conjunction with embodiment, the present invention is described further.
Pet food after the packing is at room temperature carried out irradiation, and product places under the normal temperature and stores after the radiation treatment, and random sampling regularly detects pet food radiation sterilizing effect.All adopt product from SQ (H) the Multifunction full automatic control Dynarad (available from Beijing three strong nuclear force radiation Co., Ltds and Jiangsu Province Agriculture Science Institute atom the subject of knowledge and the object of knowledge) of moving face, the leak free pet food is used
60The Co-gamma radiation carries out radiation treatment, and the loading of source amount is 700,000 Curie, and irradiation 3.5～7 hours adopts Ag
2Cr
2O
7Dose detector carries out on-the-spot irradiation dose and follows the tracks of detection, and radiation sterilizing absorbed dose scope is 3～8kGy, radiation sterilizing absorbed dose degree of irregularity (ratio of maximum absorbed dose and minimal absorption dosage)＜1.38.
Embodiment 1: apron
With the apron of the 1.5kg PE food pack of packing into, under normal temperature condition, vacuum-packedly also seal, per then 10 bags is 1 group, the corrugated case of 60 * 40 * 30cm that packs into also tightly seals.After exposure time was handled in 3.5 hours, product radiation sterilizing average absorbed dose was 4.0kGy, and the total number of bacteria in the apron is by 2.3 * 10 of predose
4Cfu/g is reduced to 350cfu/g, and coliform is reduced to below the 30MPN/100g by 190MPN/100g, and mould and salmonella all do not detect behind the predose.
Embodiment 2: skin volume
With the pet food of the 1.0kg PE food pack of packing into, under normal temperature condition, vacuum-packedly also seal, per then 16 bags is 1 group, the corrugated case of 60 * 40 * 30cm that packs into also tightly seals.After exposure time was handled in 3.5 hours, product radiation sterilizing average absorbed dose was 4.0kGy, and the total number of bacteria in the skin volume is by 1.1 * 10 of predose
4Cfu/g is reduced to 190cfu/g, and coliform is reduced to below the 30MPN/100g by 230MPN/100g, and mould and salmonella all do not detect yet behind the predose.
Embodiment 3: pigeon breast meat
With the pet food of the 1.13kg PE food pack of packing into, under normal temperature condition, vacuum-packedly also seal, per then 10 bags is 1 group, the corrugated case of 60 * 40 * 30cm that packs into also tightly seals.After exposure time 3.5～7 hours was handled, product radiation sterilizing average absorbed dose was 3～8kGy, the total number of bacteria the biggest drop in the pigeon breast meat by 3.6 * 10 of predose
6Cfu/g is reduced to 930cfu/g, 4 orders of magnitude that descended, and coliform is by 2.6 * 10 of predose
3MPN/100g reduces to below the 30MPN/100g, and the predose fungi count mostly is 420cfu/g most, does not all detect behind the irradiation, and salmonella does not all detect behind predose.
Embodiment 4: bone class
With the pet food of the 1.8kg PE food pack of packing into, under normal temperature condition, vacuum-packed, vacuum seal, per then 8 bags is 1 group, the corrugated case of 60 * 40 * 30cm that packs into also tightly seals.After exposure time 6.2 hours was handled, product radiation sterilizing average absorbed dose was 7.0kGy, the total number of bacteria the biggest drop in the bone class by 1.6 * 10 of predose
6Cfu/g is reduced to 650cfu/g, 4 orders of magnitude that also descended, and coliform is by 1.2 * 10
3MPN/100g reduces to below the 30MPN/100g, and mould and salmonella all do not detect behind the predose.
Embodiment 5: beef roll
With the pet food of the 1.0kg PE food pack of packing into, under normal temperature condition, vacuum-packed, vacuum seal, per then 16 bags is 1 group, the corrugated case of 60 * 40 * 30cm that packs into also tightly seals.After exposure time was handled in 7 hours, product radiation sterilizing average absorbed dose was 8.0kGy, and the total number of bacteria in the beef roll is by 4.0 * 10 of predose
6Cfu/g is reduced to 950cfu/g, and coliform is by 6.8 * 10
5MPN/100g reduces to below the 30MPN/100g, and mould and salmonella all do not detect behind the predose.
At present, China's irradiation pet food is mainly based on outlet.Therefore, pet food microbiological indicator behind the irradiation mainly is to require to determine according to product importer.As American-European countries major requirement coliform＜300MPN/100g, mould, salmonella must not detect total number of bacteria≤1000cfu/g.Adopt radiation method for sterilizing of the present invention, product design reaches American-European standard.
Claims (4)
1, the radiation method for sterilizing of pet food is characterized in that:
A) pet food of 1.0～1.8kg is packed into food pack, under normal temperature condition, vacuum-packed, vacuum seal, per then 5～20 bags is 1 group, the carton and tightly sealing of packing into;
B) under normal temperature, original packing condition, the leak free pet food is used
60The Co-gamma radiation carries out radiation treatment, and radiation sterilizing absorbed dose scope is 3～8kGy.
2, the radiation method for sterilizing of pet food according to claim 1 is characterized in that:
Pet food pack into behind the food pack per 5～20 bags be 1 group, 50 * 40 * 30cm packs into
3～60 * 50 * 40cm
3Corrugated case tightly seal.
3, the radiation method for sterilizing of pet food according to claim 1 and 2, it is characterized in that: in the irradiation process, adopt product from moving the face irradiation devices, make the interior pet food irradiation absorbed dose of case even, the ratio of its maximum absorbed dose and minimal absorption dosage answers＜1.38.
4, with the product that radiation method for sterilizing obtained of one of claim 1 ∽ 3 described pet food.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100401286A CN100427363C (en) | 2006-05-08 | 2006-05-08 | Radiation method for sterilizing pet food |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100401286A CN100427363C (en) | 2006-05-08 | 2006-05-08 | Radiation method for sterilizing pet food |
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| Publication Number | Publication Date |
|---|---|
| CN1843857A true CN1843857A (en) | 2006-10-11 |
| CN100427363C CN100427363C (en) | 2008-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100401286A Expired - Fee Related CN100427363C (en) | 2006-05-08 | 2006-05-08 | Radiation method for sterilizing pet food |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101856130A (en) * | 2010-05-27 | 2010-10-13 | 四川省原子能研究院 | Irradiation processing technique for chicken claws cooked with Japanese pepper |
| CN102919567A (en) * | 2012-10-10 | 2013-02-13 | 江苏省农业科学院 | Irradiation and antioxidant synergetic anti-oxidation method for dried beef pet foods |
| CN112668844A (en) * | 2020-12-16 | 2021-04-16 | 中国辐射防护研究院 | Annual food intake estimation method for nuclear facility radiation environment influence evaluation |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0889742A (en) * | 1994-09-22 | 1996-04-09 | Mitsubishi Gas Chem Co Inc | Sterilizing method of deoxidizer package and deoxidizer package sterilized by the same |
| RU2235470C2 (en) * | 2001-02-12 | 2004-09-10 | Институт электрофизики Уральского отделения РАН | Method and apparatus for sterilizing of melange |
| JP2004041047A (en) * | 2002-07-10 | 2004-02-12 | Kenichi Katakura | Freshness maintenance of food product and fungistatic/sterilizing device for the same |
| CN1189100C (en) * | 2002-08-16 | 2005-02-16 | 湖南省原子能农业应用研究所 | Technology for cooking braised upper part of leg or pork |
| CN1452894A (en) * | 2003-05-25 | 2003-11-05 | 浙江大学 | Irradiation pretreatment process for producing dry fruits and vegetalbe |
-
2006
- 2006-05-08 CN CNB2006100401286A patent/CN100427363C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101856130A (en) * | 2010-05-27 | 2010-10-13 | 四川省原子能研究院 | Irradiation processing technique for chicken claws cooked with Japanese pepper |
| CN101856130B (en) * | 2010-05-27 | 2013-07-17 | 四川省原子能研究院 | Irradiation processing technique for chicken claws cooked with Japanese pepper |
| CN102919567A (en) * | 2012-10-10 | 2013-02-13 | 江苏省农业科学院 | Irradiation and antioxidant synergetic anti-oxidation method for dried beef pet foods |
| CN112668844A (en) * | 2020-12-16 | 2021-04-16 | 中国辐射防护研究院 | Annual food intake estimation method for nuclear facility radiation environment influence evaluation |
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| Publication number | Publication date |
|---|---|
| CN100427363C (en) | 2008-10-22 |
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Owner name: JIANGSU ACADEMY OF AGRICULTURAL SCIENCES Free format text: FORMER OWNER: RUIDISHENG SCIENCE AND TECHNOLOGY CO., LTD., JIANGSU Effective date: 20150128 |
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Effective date of registration: 20150128 Address after: Nanjing City, Jiangsu province 210014 Zhongling Street No. 50 Patentee after: Jiangsu Academy of Agricultural Sciences Address before: Xiaolingwei Nanjing City, Jiangsu province 210014 Zhongling Street No. 50 Patentee before: Ruidisheng Science and Technology Co., Ltd., Jiangsu |
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Granted publication date: 20081022 Termination date: 20210508 |