CN102948454A - Method of applying X-ray to sterilize and preserve bass slices and application thereof - Google Patents
Method of applying X-ray to sterilize and preserve bass slices and application thereof Download PDFInfo
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- CN102948454A CN102948454A CN2012105346863A CN201210534686A CN102948454A CN 102948454 A CN102948454 A CN 102948454A CN 2012105346863 A CN2012105346863 A CN 2012105346863A CN 201210534686 A CN201210534686 A CN 201210534686A CN 102948454 A CN102948454 A CN 102948454A
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Abstract
The invention discloses a method of applying an X-ray to sterilize and preserve bass slices and an application thereof, belonging to the technical field of food preservation. The method comprises the following steps: a), removing the head and the internal organs of a bass, and then cutting the bass into slices; and b), carrying out an X-ray treatment to on the slices, wherein the irradiation dose is 1-.5-3.0 kGy. The technical scheme of the invention has the advantages as follows: 1, the X-ray sterilization effect is completethorough; 2, original flavor and ingredients of the food can be kept; 3, the method is sanitary and safety with no residues and or artificial radioactivity; 4, the X-ray is generated by bombarding a heavy-metal target through high-speed electrons generated by an electron accelerator, has the characteristics of good accelerator controllability and no radioactive source; and 5, a synthetic preservation treatment is carried out to on the slices, so that preservation time is increased.
Description
Technical field
The invention belongs to the food preservative technology field, be specifically related to a kind of applying X-ray to method and the application thereof of perch sheet sterilization fresh.
Background technology
The radiation sterilizing technology is to utilize bundle of rays energy and charge transfer to microorganism and the insect of the work in food and the food, cause they metabolism, grow and the vital movement such as biochemical reactions is affected by ray and causes passivation and the various damage of enzyme, thereby cause that metabolism growth is unusual, damage enlarges until life is dead.The characteristics of radiation sterilization are that product temperature is raise, and are suitable for the sterilization of some thermo-labile material, and using comparatively extensively is gamma-rays, X ray and ultraviolet ray.The gamma-rays penetrability is strong, can realize the sterilization to thicker sample, also can sterilize to the product of packing, thereby greatly reduce the chance of polluting.But the superpower penetration power of gamma-rays just, gamma ray projector need to be placed in the deep-well of special construction, and needs very strict supporting safeguard, and somewhat expensive can't large-scale application.Ultraviolet ray has safety, cheap and advantage easy and simple to handle, but because penetration power is very poor, sterilization effect is relatively poor.The protection of X ray is comparatively simple compared to gamma-rays, and the stereotype of several millimeters thick just can block, and penetration power satisfies the requirement of sterilization fresh fully between gamma-rays and ultraviolet ray.
The related documents report only discloses the sterilization fresh research that gamma-rays is applied to relevant fish, such as: Liu Chunquan etc. have studied the irradiation fresh-keeping effect of outlet freezing shrimp meat, the result shows: the irradiation dose of 3～5kGy can be killed the microorganism more than 99% in the freezing shrimp meat, through 1～9kGy dosage irradiation, most of amino acid contents all have increase in the shrimp, its total amount is apparently higher than contrast, the content of VBN behind the irradiation, behind the toxic heavy metal element content predose without significant difference.But for X ray being used the fresh-keeping shortage research of fish, do not determine best illuminate condition and the preservation method that the fish X-radiation is fresh-keeping.
Under this background, the inventor to X ray be applied to the perch sheet fresh-keepingly carried out systematic research, determined best illuminate condition and a preservation method that perch sheet X-radiation is fresh-keeping, filled up the blank that X ray is used in this field.
Summary of the invention
The object of the invention is to overcome the above-mentioned defective of mentioning and deficiency, and the method for a kind of applying X-ray to perch sheet sterilization fresh is provided, determined the fresh-keeping best illuminate condition of perch sheet X-radiation, thereby realize the fresh-keeping for a long time of perch sheet.
The present invention realizes that the technical scheme of its purpose employing is as follows.
A kind of applying X-ray may further comprise the steps to the method for perch sheet sterilization fresh:
A) first perch is decaptitated, remove internal organ, be cut into fillet;
B) fillet are carried out X ray and process, irradiation dose is 1.5-3.0kGy.
As preferably, step a) in, the fillet width of perch is at 3-10cm.
As preferably, step a) in, after perch is cut into fillet, processed 2 hours through salt marsh again.
As preferably, at step b) in, fillet use the composite polyethylene bag vacuum-packed after processing through X ray again.
As preferably, at step b) in, after fillet were processed through X ray, through refrigeration, the reserve temperature of described fillet was 0-6 ° again.
As preferably, at step b) in, the x-ray irradiation temperature is 0-5 °.
As preferably, described salt marsh is processed and is comprised and the fillet after cleaning are immersed salt solution half an hour of 15%, turns cylinder and immerses concentration in 20%～22% salt solution half an hour, and turning cylinder, to immerse concentration be salt solution half an hour of 25% again, goes out cylinder.
A kind of applying X-ray is to the application of method in perch sheet sterilization fresh of perch sheet sterilization fresh.
Technical scheme of the present invention has following advantage:
1.X the radiation sterilization effect is thorough.X ray has higher energy and stronger penetration power, and the packaging material that can penetrate fillet act on the deep layer of fillet, have stronger sterilizing ability.
2. original local flavor and the composition that can keep food.The X ray sterilization is a kind of " cold sterilization " technology, and irradiation temperature is at normal temperature, and the heat that irradiation produces is less, causes hardly the rising of fillet internal temperature, can keep preferably color, smell and taste and the composition of fillet.
3. noresidue, without the radioactivity of inducting, safe and sanitary.The X ray sterilization is to utilize the energy of ray to realize the fillet sterilization, therefore can not occur residual.
Produce 4.X ray is the high-velocity electrons bombardment heavy metal target of utilizing electron accelerator to produce, have accelerator controllability preferably and without the characteristics of radioactive source.
5. fillet are carried out the comprehensive preservation processing, improved the fresh-keeping time.The main cause that causes the fish corruption is the effect of microorganism and enzyme.Fish can killing microorganisms through overshoot, but autolytic enzyme and catabolic enzyme still can keep, even through also being like this behind the high-dose irradiation.In order to make nutritional quality obtain maximum maintenance and stable, irradiation processing cooperates the methods such as salt marsh or refrigeration usually.In addition, vacuum packaging also can suppress oxidation reaction.
The specific embodiment
The below is described in further detail the present invention.
Embodiment one:
A kind of applying X-ray may further comprise the steps to the method for perch sheet sterilization fresh:
A) first perch is decaptitated, remove internal organ, be cut into fillet, the fillet width of perch is at 3cm;
B) fillet are carried out X ray and process, irradiation dose is 1.5kGy, and irradiation temperature is normal temperature, preservation under room temperature.
Embodiment two:
A kind of applying X-ray may further comprise the steps to the method for perch sheet sterilization fresh:
A) first perch is decaptitated, remove internal organ, be cut into fillet, the fillet width of perch is at 10cm;
B) fillet are carried out X ray and process, irradiation dose is 1.5kGy, and irradiation temperature is normal temperature, preservation under room temperature.
Embodiment three:
A kind of applying X-ray may further comprise the steps to the method for perch sheet sterilization fresh:
A) first perch is decaptitated, remove internal organ, be cut into fillet, the fillet width of perch is at 3cm;
B) fillet are carried out X ray and process, irradiation dose is 1.5kGy, and irradiation temperature is normal temperature, uses the composite polyethylene bag vacuum-packed, preservation under room temperature again.
Embodiment four:
A kind of applying X-ray may further comprise the steps to the method for perch sheet sterilization fresh:
A) first perch is decaptitated, remove internal organ, be cut into fillet, the fillet width of perch is at 3cm;
B) fillet are carried out X ray and process, irradiation dose is 1.5kGy, and irradiation temperature is normal temperature, uses the composite polyethylene bag vacuum-packed again, and through refrigeration, the reserve temperature of described fillet is 6 ° again.
Embodiment five:
A kind of applying X-ray may further comprise the steps to the method for perch sheet sterilization fresh:
A) first perch is decaptitated, remove internal organ, be cut into fillet, the fillet width of perch is at 3cm;
B) fillet are carried out X ray and process, irradiation dose is 1.5kGy, and irradiation temperature is normal temperature, uses the composite polyethylene bag vacuum-packed again, and through refrigeration, the reserve temperature of described fillet is 0 ° again.
Embodiment six:
A kind of applying X-ray may further comprise the steps to the method for perch sheet sterilization fresh:
A) first perch is decaptitated, remove internal organ, be cut into fillet, the fillet width of perch is at 3cm;
B) fillet are carried out X ray and process, irradiation dose is 1.5kGy, and the x-ray irradiation temperature is 0-5 °, uses the composite polyethylene bag vacuum-packed again, and through refrigeration, the reserve temperature of described fillet is 0 ° again.
Embodiment seven:
A kind of applying X-ray may further comprise the steps to the method for perch sheet sterilization fresh:
A) first perch is decaptitated, remove internal organ, be cut into fillet, the fillet width of perch was processed 2 hours through salt marsh at 3cm again; Described salt marsh is processed and is comprised and the fillet after cleaning are immersed salt solution half an hour of 15%, turns cylinder and immerses concentration in 20%～22% salt solution half an hour, and turning cylinder, to immerse concentration be salt solution half an hour of 25% again, goes out cylinder;
B) fillet are carried out X ray and process, irradiation dose is 1.5kGy, and irradiation temperature is normal temperature, preservation under room temperature.
Embodiment eight:
A kind of applying X-ray may further comprise the steps to the method for perch sheet sterilization fresh:
A) first perch is decaptitated, remove internal organ, be cut into fillet, the fillet width of perch is at 7cm;
B) fillet are carried out X ray and process, irradiation dose is 1.5kGy, and the x-ray irradiation temperature is 0-5 °, uses the composite polyethylene bag vacuum-packed again, and through refrigeration, the reserve temperature of described fillet is 0 ° again.
Embodiment nine:
A kind of applying X-ray may further comprise the steps to the method for perch sheet sterilization fresh:
A) first perch is decaptitated, remove internal organ, be cut into fillet, the fillet width of perch is at 10cm;
B) fillet are carried out X ray and process, irradiation dose is 1.5kGy, and the x-ray irradiation temperature is 0-5 °, uses the composite polyethylene bag vacuum-packed again, and through refrigeration, the reserve temperature of described fillet is 0 ° again.
Embodiment ten:
A kind of applying X-ray may further comprise the steps to the method for perch sheet sterilization fresh:
A) first perch is decaptitated, remove internal organ, be cut into fillet, the fillet width of perch is at 3cm;
B) fillet are carried out X ray and process, irradiation dose is 2.0kGy, and irradiation temperature is normal temperature, preservation under room temperature.
Embodiment 11:
A kind of applying X-ray may further comprise the steps to the method for perch sheet sterilization fresh:
A) first perch is decaptitated, remove internal organ, be cut into fillet, the fillet width of perch is at 10cm;
B) fillet are carried out X ray and process, irradiation dose is 2.0kGy, and the x-ray irradiation temperature is 0-5 °, uses the composite polyethylene bag vacuum-packed again, and through refrigeration, the reserve temperature of described fillet is 0 ° again.
Embodiment 12:
A kind of applying X-ray may further comprise the steps to the method for perch sheet sterilization fresh:
A) first perch is decaptitated, remove internal organ, be cut into fillet, the fillet width of perch is at 3cm;
B) fillet are carried out X ray and process, irradiation dose is 3.0kGy, and irradiation temperature is normal temperature, preservation under room temperature.
Embodiment 13:
A kind of applying X-ray may further comprise the steps to the method for perch sheet sterilization fresh:
A) first perch is decaptitated, remove internal organ, be cut into fillet, the fillet width of perch is at 10cm;
B) fillet are carried out X ray and process, irradiation dose is 3.0kGy, and the x-ray irradiation temperature is 0-5 °, uses the composite polyethylene bag vacuum-packed again, and through refrigeration, the reserve temperature of described fillet is 0 ° again.
The table of comparisons of VBN value when table 1 is the sterilizing rate of each embodiment and the 3rd day
| Embodiment | One | Two | Three | Four | Five | Six | Seven | Eight | Nine | Ten | 11 | 12 | 13 |
| Sterilizing rate (%) | 92.4 | 90.2 | 92.4 | 92.4 | 92.4 | 92.1 | 92.4 | 91.6 | 90.2 | 97.1 | 96.5 | 99.3 | 99.1 |
| VBN value in the time of the 3rd day (mg/100g meat) | 23 | 28 | 18 | 12 | 10 | 9 | 12 | 10 | 12 | 18 | 9 | 15 | 8 |
VBN (VBN) is one of main chemical index of judging fish freshness.VBN comprises that the flesh of fish decomposes ammonia (NH3), methylamine (MA), dimethylamine (DMA) and the trimethylamine (TMA) etc. that produce under enzyme and microbial action.In the food hygienic standard according to China's issue in 1978, the VBN value of general fish is fresh level below 15mg/100g meat; Be time fresh level at 25-35mg/100g meat.
As can be seen from Table 1, with 1.5kGy dosage irradiation, the microorganism about 90% can be killed, with 3.0 kGy dosage irradiation, the microorganism of the overwhelming majority can be substantially killed.And, with measures such as the comprehensive salt marsh of radiation treatment, vacuum packaging, low-temperature preservations, be conducive to fresh-keeping for a long time.Wherein, the penetration power of X ray is not as gamma-rays, and irradiation again after the packing will weaken the irradiation effect, so vacuum-packed under aseptic condition again behind the irradiation.
Claims (8)
1. an applying X-ray is characterized in that to the method for perch sheet sterilization fresh it may further comprise the steps:
A) first perch is decaptitated, remove internal organ, be cut into fillet;
B) fillet are carried out X ray and process, irradiation dose is 1.5-3.0kGy.
2. a kind of applying X-ray as claimed in claim 1 is characterized in that to the method for perch sheet sterilization fresh, step a) in, the fillet width of perch is at 3-10cm.
3. a kind of applying X-ray as claimed in claim 1 is characterized in that to the method for perch sheet sterilization fresh, step a) in, after perch is cut into fillet, processed 2 hours through salt marsh again.
4. a kind of applying X-ray as claimed in claim 1 is characterized in that to the method for perch sheet sterilization fresh, at step b) in, fillet use the composite polyethylene bag vacuum-packed after processing through X ray again.
Such as claim 1 or 4 described a kind of applying X-rays to the method for perch sheet sterilization fresh, it is characterized in that, at step b) in, after fillet were processed through X ray, through refrigeration, the reserve temperature of described fillet was 0-6 ° again.
6. a kind of applying X-ray as claimed in claim 1 is characterized in that to the method for perch sheet sterilization fresh, at step b) in, the x-ray irradiation temperature is 0-5 °.
7. a kind of applying X-ray as claimed in claim 3 is to the method for perch sheet sterilization fresh, it is characterized in that, described salt marsh is processed the salt solution half an hour that comprises the fillet immersion 15% after cleaning, turn cylinder and immerse concentration in salt solution half an hour of 20%～22%, turning cylinder, to immerse concentration be salt solution half an hour of 25% again, goes out cylinder.
8. a kind of applying X-ray as claimed in claim 1 is to the application of method in perch sheet sterilization fresh of perch sheet sterilization fresh.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210534686.3A CN102948454B (en) | 2012-12-12 | 2012-12-12 | Method of applying X-ray to sterilize and preserve bass slices and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210534686.3A CN102948454B (en) | 2012-12-12 | 2012-12-12 | Method of applying X-ray to sterilize and preserve bass slices and application thereof |
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| CN102948454A true CN102948454A (en) | 2013-03-06 |
| CN102948454B CN102948454B (en) | 2014-05-07 |
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| CN114375991A (en) * | 2022-01-28 | 2022-04-22 | 杨凌核盛辐照技术有限公司 | Preservation method for treating fresh Chinese chestnuts by utilizing X-ray large-batch irradiation |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103651734A (en) * | 2013-11-27 | 2014-03-26 | 南昌大学 | Method for irradiating fish for retaining freshness |
| CN104855487A (en) * | 2015-05-29 | 2015-08-26 | 阮博 | Irradiation preservation method for famous freshwater fish |
| CN114375991A (en) * | 2022-01-28 | 2022-04-22 | 杨凌核盛辐照技术有限公司 | Preservation method for treating fresh Chinese chestnuts by utilizing X-ray large-batch irradiation |
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| CN102948454B (en) | 2014-05-07 |
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