CN102948454B - 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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- CN102948454B CN102948454B CN201210534686.3A CN201210534686A CN102948454B CN 102948454 B CN102948454 B CN 102948454B CN 201210534686 A CN201210534686 A CN 201210534686A CN 102948454 B CN102948454 B CN 102948454B
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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 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
Radiation sterilizing technology is to utilize bundle of rays energy and charge transfer to microorganism and the insect of the work in food and 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 abnormal, damage expands until life is dead.The feature of radiation sterilization is that product temperature is raise, and is suitable for the sterilizing of some thermo-labile material, and application is comparatively extensively gamma-rays, X ray and ultraviolet ray.Gamma-rays penetrability is strong, can realize the sterilizing to thicker sample, also can sterilizing to the product of packing, thus greatly reduced 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, cannot large-scale application.Ultraviolet ray has advantages of safety, cheap and easy and simple to handle, but because penetration power is very poor, sterilization effect is 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 is between gamma-rays and ultraviolet ray, meets the requirement of sterilization fresh completely.
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, result shows: the irradiation dose of 3～5kGy can be killed more than 99% microorganism in freezing shrimp meat, through 1～9kGy dosage irradiation, in shrimp, most of amino acid contents all have increase, its total amount is apparently higher than contrast, after irradiation, the content of VBN reduces, after toxic heavy metal element content predose without significant difference.But for X ray being applied to the fresh-keeping shortage research of fish, do not determine best illuminate condition and a preservation method that fish X-radiation is fresh-keeping.
Under this background, the inventor to X ray be applied to 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 of X ray in this field application.
Summary of the invention
The object of the invention is to overcome the above-mentioned defect 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 realized the fresh-keeping for a long time of perch sheet.
The technical scheme that the present invention realizes its object employing is as follows.
Applying X-ray, to a method for perch sheet sterilization fresh, comprises the following steps:
A) first perch is decaptitated, remove internal organ, be cut into fillet;
B) fillet are carried out to X ray processing, 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, perch is cut into after fillet, then processes 2 hours through salt marsh.
As preferably, at step b) in, fillet, after X ray is processed, then are used the vacuum packaging of composite polyethylene bag.
As preferably, at step b) in, fillet are after X ray is processed, then through refrigeration, the reserve temperature of described fillet is 0-6 °.
As preferably, at step b) in, x-ray irradiation temperature is 0-5 °.
As preferably, described salt marsh is processed and is comprised the salt solution half an hour of the fillet after cleaning being immersed to 15%, turns cylinder and immerses concentration in 20%～22% salt solution half an hour, then turn cylinder and immerse the salt solution half an hour that concentration is 25%, goes out cylinder.
A kind of applying X-ray is the application in perch sheet sterilization fresh to the method for perch sheet sterilization fresh.
Technical scheme of the present invention has following advantage:
1.X 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.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 artificial radioactivity, safe and sanitary.X ray sterilization is to utilize the energy of ray to realize fillet sterilization, therefore there will not be residual.
4.X ray is to utilize the high-velocity electrons bombardment heavy metal target that electron accelerator produces to produce, and has good accelerator controllability and without the feature of radioactive source.
5. pair fillet have carried out comprehensive preservation processing, have improved the fresh-keeping time.The main cause that causes fish corruption is the effect of microorganism and enzyme.Fish can killing microorganisms through overshoot, but autolytic enzyme and catabolic enzyme still can retain, and after high-dose irradiation, is also even like this.In order to make nutritional quality obtain maximum maintenance and stable, irradiation processing coordinates the methods such as salt marsh or refrigeration conventionally.In addition, vacuum packaging also can suppress oxidation reaction.
The specific embodiment
Below the present invention is described in further detail.
Embodiment mono-:
Applying X-ray, to a method for perch sheet sterilization fresh, comprises the following steps:
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 to X ray processing, irradiation dose is 1.5kGy, and irradiation temperature is normal temperature, preservation under room temperature.
Embodiment bis-:
Applying X-ray, to a method for perch sheet sterilization fresh, comprises the following steps:
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 to X ray processing, irradiation dose is 1.5kGy, and irradiation temperature is normal temperature, preservation under room temperature.
Embodiment tri-:
Applying X-ray, to a method for perch sheet sterilization fresh, comprises the following steps:
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 to X ray processing, irradiation dose is 1.5kGy, and irradiation temperature is normal temperature, then uses the vacuum packaging of composite polyethylene bag, preservation under room temperature.
Embodiment tetra-:
Applying X-ray, to a method for perch sheet sterilization fresh, comprises the following steps:
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 to X ray processing, irradiation dose is 1.5kGy, and irradiation temperature is normal temperature, then uses the vacuum packaging of composite polyethylene bag, then through refrigeration, the reserve temperature of described fillet is 6 °.
Embodiment five:
Applying X-ray, to a method for perch sheet sterilization fresh, comprises the following steps:
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 to X ray processing, irradiation dose is 1.5kGy, and irradiation temperature is normal temperature, then uses the vacuum packaging of composite polyethylene bag, then through refrigeration, the reserve temperature of described fillet is 0 °.
Embodiment six:
Applying X-ray, to a method for perch sheet sterilization fresh, comprises the following steps:
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 to X ray processing, irradiation dose is 1.5kGy, and x-ray irradiation temperature is 0-5 °, then uses the vacuum packaging of composite polyethylene bag, then through refrigeration, the reserve temperature of described fillet is 0 °.
Embodiment seven:
Applying X-ray, to a method for perch sheet sterilization fresh, comprises the following steps:
A) first perch is decaptitated, remove internal organ, be cut into fillet, the fillet width of perch is at 3cm, then processes 2 hours through salt marsh; Described salt marsh is processed and is comprised the salt solution half an hour of the fillet after cleaning being immersed to 15%, turns cylinder and immerses concentration in 20%～22% salt solution half an hour, then turn the salt solution half an hour that cylinder immersion concentration is 25%, goes out cylinder;
B) fillet are carried out to X ray processing, irradiation dose is 1.5kGy, and irradiation temperature is normal temperature, preservation under room temperature.
Embodiment eight:
Applying X-ray, to a method for perch sheet sterilization fresh, comprises the following steps:
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 to X ray processing, irradiation dose is 1.5kGy, and x-ray irradiation temperature is 0-5 °, then uses the vacuum packaging of composite polyethylene bag, then through refrigeration, the reserve temperature of described fillet is 0 °.
Embodiment nine:
Applying X-ray, to a method for perch sheet sterilization fresh, comprises the following steps:
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 to X ray processing, irradiation dose is 1.5kGy, and x-ray irradiation temperature is 0-5 °, then uses the vacuum packaging of composite polyethylene bag, then through refrigeration, the reserve temperature of described fillet is 0 °.
Embodiment ten:
Applying X-ray, to a method for perch sheet sterilization fresh, comprises the following steps:
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 to X ray processing, irradiation dose is 2.0kGy, and irradiation temperature is normal temperature, preservation under room temperature.
Embodiment 11:
Applying X-ray, to a method for perch sheet sterilization fresh, comprises the following steps:
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 to X ray processing, irradiation dose is 2.0kGy, and x-ray irradiation temperature is 0-5 °, then uses the vacuum packaging of composite polyethylene bag, then through refrigeration, the reserve temperature of described fillet is 0 °.
Embodiment 12:
Applying X-ray, to a method for perch sheet sterilization fresh, comprises the following steps:
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 to X ray processing, irradiation dose is 3.0kGy, and irradiation temperature is normal temperature, preservation under room temperature.
Embodiment 13:
Applying X-ray, to a method for perch sheet sterilization fresh, comprises the following steps:
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 to X ray processing, irradiation dose is 3.0kGy, and x-ray irradiation temperature is 0-5 °, then uses the vacuum packaging of composite polyethylene bag, then through refrigeration, the reserve temperature of described fillet is 0 °.
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 judgement 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.According in the food hygienic standard of China's issue in 1978, the VBN value of general fish, below 15mg/100g meat, is fresh level; At 25-35mg/100g meat, it is time fresh level.
As can be seen from Table 1, with 1.5kGy dosage irradiation, the microorganism of 90% left and right can be killed, with 3.0 kGy dosage irradiation, most microorganisms can be substantially killed.And, by 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 packing, will weaken irradiation effect, so vacuum packaging under aseptic condition again after irradiation.
Claims (6)
1. applying X-ray, to a method for perch sheet sterilization fresh, is characterized in that, it comprises the following steps:
A) first perch is decaptitated, remove internal organ, be cut into fillet, through salt marsh, process 2 hours, described salt marsh is processed and is comprised the salt solution half an hour of the fillet after cleaning being immersed to 15% again, turns cylinder and immerses concentration in salt solution half an hour of 20%～22%, turn again cylinder and immerse the salt solution half an hour that concentration is 25%, go out cylinder;
B) fillet are carried out to X ray processing, irradiation dose is 1.5-3.0kGy.
2. a kind of applying X-ray as claimed in claim 1, to the method for perch sheet sterilization fresh, is characterized in that, step a) in, the fillet width of perch is at 3-10cm.
3. a kind of applying X-ray as claimed in claim 1, to the method for perch sheet sterilization fresh, is characterized in that, at step b) in, fillet, after X ray is processed, then are used the vacuum packaging of composite polyethylene bag.
4. a kind of applying X-ray as described in claim 1 or 3, to the method for perch sheet sterilization fresh, is characterized in that, at step b) in, fillet are after X ray is processed, then through refrigeration, the reserve temperature of described fillet is 0-6 °.
5. a kind of applying X-ray as claimed in claim 1, to the method for perch sheet sterilization fresh, is characterized in that, at step b) in, x-ray irradiation temperature is 0-5 °.
6. a kind of applying X-ray as claimed in claim 1 application in perch sheet sterilization fresh to the method for perch sheet sterilization fresh.
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| CN102948454B true CN102948454B (en) | 2014-05-07 |
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| 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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| US20040166212A1 (en) * | 2003-02-26 | 2004-08-26 | Winterlab Limited | Method of producing a frozen marinated reconstituted meat product |
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| US20020192340A1 (en) * | 2001-02-01 | 2002-12-19 | Swart Sally Kay | Method and system for reducing microbial burden on a food product |
| US20040166212A1 (en) * | 2003-02-26 | 2004-08-26 | Winterlab Limited | Method of producing a frozen marinated reconstituted meat product |
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