CN103053668A - Method for preserving seawater fishes through super cooling seawater - Google Patents
Method for preserving seawater fishes through super cooling seawater Download PDFInfo
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- CN103053668A CN103053668A CN2012105949714A CN201210594971A CN103053668A CN 103053668 A CN103053668 A CN 103053668A CN 2012105949714 A CN2012105949714 A CN 2012105949714A CN 201210594971 A CN201210594971 A CN 201210594971A CN 103053668 A CN103053668 A CN 103053668A
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Abstract
The invention discloses a method for preserving seawater fishes through super cooling seawater. The method comprises the following steps: salt and seawater are added in a cold seawater storage warehouse respectively; a salt-water mixing pump is started to evenly mix the salt with the seawater to form a salt-water mixture; then a refrigeration system is started to cool the salt-water mixture to a range of -5 to -10 DEG C; the cooled salt-water is injected in a seawater preserving bin through a seawater circulating system; fishes in a fish hold are transmitted to the seawater preserving bin through a conveying belt; and fish bodies are cooled through the cooled salt-water mixture. The method adopts the salt-added cold seawater as a cooling substance for cooling the seawater fishes, and combines the cold seawater circulation with the multi-point temperature control technology to realize the precise temperature control of cooling medium, so that the freshness of the fish bodies is retained more conveniently, and the shelf life of the fish bodies is prolonged by 2-3 times or more times.
Description
(1) technical field
The present invention relates to a kind of method for preserving aquatic products, particularly the but method of the fresh-keeping fish of seawater of a kind of supercool.
(2) background technology
Jack mackerel (Trachurus symmetricus) has another name called the thorn Spanish mackerel, belongs to Perciformes, Scad section.Its body becomes spindle, and is flat-sided, entirely drapes over one's shoulders scute on the side line, scute Gao Erqiang, and shape is such as the combination protuberance pod with the bamboo clappers establishment, and jack mackerel is gained the name thus.Jack mackerel is warm water fishes, is distributed in the Pacific Ocean, the Indian Ocean, Atlantic subtropical zone and temperate waters, also is one of world's Main Commercial Fishes.Now become one of main fishing kind in the world, it has three large Zhi Qun: the North Western Pacific jack mackerel, all can catch in China South Sea, the East China Sea and the Yellow Sea, the Bohai Sea; Atlantic Ocean jack mackerel is removed Harrar, Mauritania, the coastal cluster of Senegal in South Africa and West Africa; Chile's jack mackerel also claims the southeast Pacific jack mackerel, and body is oval tubular, at Peru and Chilean waters (south latitude 7～50.Jack mackerel is the fish with higher economic worth.The crude protein content of jack mackerel muscle and internal organ is all high, and average content reaches about 15%.Fat content is medium, contains two kinds of unrighted acids that health-care effect is arranged of DHA and EPA, and content of hemachrome is abundant, contains in addition more calcium, zinc, Iron and Vitamin A, E etc.
The fresh-keeping mode of fish has cold storage, iced storage and the storage of Mare Frigoris water, along with the consumer to the raising that aquatic product quality requires, controlled atmosphere has been arranged again thereupon, the fresh-keeping and fresh chemically of slob etc.In numerous preservation methods, iced storage, cold storage are still the most popular method of preservation of fishery and long preservation by reducing growth and the various biochemical reaction of microorganism in food, are widely used in the storage of fish shellfish meat and raw material thereof.Yet a series of variation still can occur in fish in the deepfreeze process, such as protein denaturation, ATP degraded, fat oxidation, the brown stain of the growing up of ice crystal, drying loss and color and luster, the variation such as fade can occur in during frozen storage, these variations are having a strong impact on freshness and the quality of fish and shellfish, have reduced commodity value and the nutritive value of fish and shellfish.And in course of defrosting, the increase of juice loss, especially wherein delicate flavour nucleotides etc. runs off seriously, causes and freezes fish products and can't match in excellence or beauty with delicate flavour, causes the reduction of fish edibility.
Supercool but technology (superchilling) is that catches are deposited in its below cell juice solidification point 1 ~ 2 ℃, utilizes low temperature to suppress the breeding of microorganism and a kind of slight freezing preservation method of enzyme activity.But under the temperature, food surface has one deck frozen crust at supercool, so be called supercooling again or part is freezing.Part moisture in the fish body freezes, part moisture in the microbial body also freezes, its cell liquid concentration increases, so just changed the biochemical reactions of microbial cell, some bacterium begins death, though some other bacterium is not dead, its activity also has been subject to inhibition, almost irreproducible, so just can make aquatic products keep freshness in a long time and not occur putrid and deteriorated.With the cooled fresh-keeping method with freeze fresh-keeping method and compare, preservation by partial namely can overcome the short defective of cooled fresh-keeping method fresh keeping time, can prolong 1.5～4 times of aquatic products shelf lifes, the drying loss that can avoid again freezing often running in fresh-keeping, freeze to burn, variable color iso-metamorphism phenomenon, be particularly suitable for the preservation by low temperature of the not anti-freshwater fish of freezing and some seawater fish.
(3) summary of the invention
The object of the invention provides the but method of the fresh-keeping fish of seawater of a kind of supercool, is applicable to all seawater fish (such as jack mackerel).The method can long-time fresh-keeping fish, and its guarantee period reached more than 1 month, and the method also can be used as a kind of preprocessing means of fish body before freezing in addition, has arrived the fish body fast by fish body cryohydric point, improves the requirement of cold storage fish body quality.
The technical solution used in the present invention is:
A kind of supercool is the method for the fresh-keeping fish of seawater but, described method is: described fish employing supercool but seawater fresh-keeping system carries out fresh-keeping, described supercool but seawater fresh-keeping system comprises that Mare Frigoris water storage or saving storehouse, the fresh-keeping storehouse of seawater, disinfection system, seawater circulation system are connected pipeline, conveyer belt and the compression pump that is used for connection with fish hold, described Mare Frigoris water storage or saving storehouse is communicated with by the fresh-keeping storehouse of seawater circulation system and seawater, and described fish hold is communicated with by the fresh-keeping storehouse of conveyer belt and seawater; Described Mare Frigoris water storage or saving storehouse comprises the refrigeration coil that is arranged on Mare Frigoris water storage or saving inside, storehouse, the refrigeration system in the salt solution mixing pump of seawater storage or saving outside, storehouse and control Mare Frigoris water storage or saving storehouse, described salt solution mixing pump and refrigeration system are communicated with Mare Frigoris water storage or saving storehouse by pipeline respectively, the fresh-keeping storehouse of described seawater is provided with temperature sensor, is provided with compression pump in described disinfection system and the pipeline that the fresh-keeping storehouse of seawater is communicated with; Described preservation method is: salt and seawater are added respectively Mare Frigoris water storage or saving storehouse, open and form saline mixture after the salt solution mixing pump makes salt and sea water mixing evenly, then opening refrigeration system makes saline mixture be cooled to-5 ~-10 ℃, by seawater circulation system cooled saline mixture is injected the fresh-keeping storehouse of seawater again, by conveyer belt the fish in the fish hold is sent to the fresh-keeping storehouse of seawater, by the refrigerated brine mixture fish body is lowered the temperature, when center temperature of fish is down to-1 ~-3 ℃, when the temperature of saline mixture is-1 ~-6 ℃ in the fresh-keeping storehouse of seawater, open disinfection system and compression pump the fish body in the fresh-keeping storehouse of seawater is carried out sterilization processing 5 ~ 30min, the control seawater circulation system makes after the sterilization processing that the temperature of saline mixture is maintained-1 ~-6 ℃ by seawater circulation system and temperature sensor in the fresh-keeping storehouse of seawater, and the saline mixture variations in temperature is less than 1 ℃.
Further, described disinfection system is ozone disinfecting system.
Further, junction, the fresh-keeping storehouse of described seawater circulation system and seawater is provided with sea-water purifying device.
Further, ozone concentration is 2 ~ 10ppm during described ozone disinfecting system sterilization processing, and the processing time is 5 ~ 30min.
Further, the volume of described seawater is counted 10 ~ 35m with the quality of salt
3/ kg.
Further, the mass ratio of the volume of described saline mixture and fish is 1 ~ 4:1.
Compared with prior art, beneficial effect of the present invention is mainly reflected in: the cooling material of the present invention take salt adding Mare Frigoris water as the refrigerated sea water fish, in conjunction with Mare Frigoris water circulation and Multipoint temperature-control technology, realized the accurate control of coolant temperature, make the central temperature of cooling fish body remain on lastingly supercool but in the temperature range, thereby more be conducive to keep the freshness of fish body, fish body shelf life will prolong 2 ~ 3 times or longer time; The present invention uses salt solution mixing pump mixed salt technology first, and but the salt solution salt distribution is more even to make supercool, thereby realizes the accurate control of chilling temperature; But technology and ozone sterilization technology and have obtained good fresh-keeping effect in conjunction with being applied in fish on the ship fresh-keeping with Mare Frigoris water supercool first in the present invention.
(4) description of drawings
Fig. 1 supercool is seawater fresh-keeping system schematic diagram but: 1, Mare Frigoris water storage or saving storehouse, 2, the fresh-keeping storehouse of seawater, 3, fish hold, 4, seawater circulation system, 5, salt solution mixing pump, 6, refrigeration system, 7, disinfection system, 8, conveyer belt, 9, temperature sensor, 10, sea-water purifying device, 11, refrigeration coil, 12, compression pump.
(5) specific embodiment
The present invention is described further below in conjunction with specific embodiment, but protection scope of the present invention is not limited in this:
Embodiment 1:
Described fish employing supercool but seawater fresh-keeping system carries out fresh-keeping, described supercool but seawater fresh-keeping system comprises that Mare Frigoris water storage or saving storehouse 1, the fresh-keeping storehouse 2 of seawater, disinfection system 7, seawater circulation system 4, fish hold 3 reach pipeline, conveyer belt 8 and the compression pump 12 that is used for connection, described Mare Frigoris water storage or saving storehouse 1 is communicated with the fresh-keeping storehouse 2 of seawater by seawater circulation system 4, and described fish hold 3 is communicated with the fresh-keeping storehouse 2 of seawater by conveyer belt 8; Described Mare Frigoris water storage or saving storehouse 1 comprises the refrigeration coil 11 that is arranged on Mare Frigoris water storage or saving inside, storehouse, the salt solution mixing pump 5 of Mare Frigoris water storage or saving 1 outside, storehouse and the refrigeration system 6 in control Mare Frigoris water storage or saving storehouse, described salt solution mixing pump 5 and refrigeration system 6 are communicated with Mare Frigoris water storage or saving storehouse by pipeline respectively, the fresh-keeping storehouse 2 of described seawater is provided with temperature sensor 9, is provided with compression pump 12 in described disinfection system 7 and the pipeline that the fresh-keeping storehouse 2 of seawater is communicated with; Described disinfection system is ozone disinfecting system, and junction, the fresh-keeping storehouse of described seawater circulation system and seawater is provided with sea-water purifying device 10.
In Mare Frigoris water storage or saving storehouse, add 300kg salt, then inject 10M from bottom to top
3Seawater is opened the salt solution mixing pump, by salt solution mixing pump mixing salt and seawater, makes salt content and is about 6% saline mixture.Open refrigeration system and saline mixture is cooled to-3 ℃, then the open cold seawater is stored up the compression pump between storehouse and the fresh-keeping storehouse of seawater, with cooled saline mixture 5M
3Inject the fresh-keeping storehouse of seawater, the fish that to newly catch again is transported to the fresh-keeping storehouse of seawater by fish hold by conveyer belt, water volume and fish mass ratio are 7:3, the cooling fish body core temperature is to-1 ~-3 ℃, open simultaneously the temperature sensor in the fresh-keeping storehouse of seawater, arrange that the saline mixture temperature is-2 ℃ in the fresh-keeping storehouse of seawater, when the saline mixture temperature in the fresh-keeping storehouse of seawater is higher than this temperature, seawater circulation system between the fresh-keeping storehouse of seawater and the Mare Frigoris water storage or saving storehouse connects valve and automatically opens, thereby so that the refrigerated brine mixture in the Mare Frigoris water storage or saving storehouse enters the fresh-keeping storehouse of seawater, the seawater of excess Temperature then enters Mare Frigoris water storage or saving storehouse in the fresh-keeping storehouse of seawater, thereby keeps the harmony of processing ocean temperature in the storehouse.During temperature equalization, open ozone disinfecting system, by the ozone pump with ozone ozone mixed in the fresh-keeping storehouse of seawater, and ozone concentration is 6ppm in the fresh-keeping storehouse of control seawater, processing time is 10min, then stop ozone supplied, the control seawater circulation system makes after the sterilization processing that the temperature of saline mixture is maintained-1 ~-6 ℃ by seawater circulation system and temperature sensor in the fresh-keeping storehouse of seawater, and the saline mixture variations in temperature is less than 1 ℃.In whole storage, can open at any time as required ozone generating-device, reach sterilization, keep the purpose of fish body freshness.
Embodiment 2:
Described fish adopt supercool but the seawater fresh-keeping system carry out fresh-keeping, described supercool but the seawater fresh-keeping system with embodiment 1.
In Mare Frigoris water storage or saving storehouse, add 800kg salt, then inject 10M from bottom to top
3Seawater is opened the salt solution mixing pump, by salt solution mixing pump mixing salt and seawater, makes salt content and is about 10% saline mixture.Saline mixture is cooled to-5 ℃ by refrigeration system, then the open cold seawater is stored up the seawater circulation system between storehouse and the fresh-keeping storehouse of seawater, with the saline mixture 3M of cooling
3Inject Mare Frigoris water treatment storehouse, the fish that to newly catch again is transported to the fresh-keeping storehouse of seawater by fish hold by conveyer belt, water volume and fish mass ratio are 5:5, the cooling fish body core temperature is to-1 ~-3 ℃, open simultaneously the temperature sensor in the fresh-keeping storehouse of seawater, the Mare Frigoris coolant-temperature gage is set is-2 ℃, when the saline mixture temperature in the fresh-keeping storehouse of seawater is higher than this temperature, the connection valve of the seawater circulation system between the fresh-keeping storehouse of seawater and the Mare Frigoris water storage or saving storehouse is opened automatically, thereby so that the refrigerated brine mixture in the Mare Frigoris water storage or saving storehouse enters the fresh-keeping storehouse of seawater, the seawater of excess Temperature then enters Mare Frigoris water storage or saving storehouse in the fresh-keeping storehouse of seawater, thereby keeps the harmony of ocean temperature in the fresh-keeping storehouse of seawater.During temperature equalization, open ozone disinfecting system, by the ozone pump with ozone ozone mixed in the fresh-keeping storehouse of seawater, and ozone concentration is 15ppm in the fresh-keeping storehouse of control seawater, processing time is 5min, then stop ozone supplied, the control seawater circulation system makes after the sterilization processing that the temperature of saline mixture is maintained-1 ~-6 ℃ by seawater circulation system and temperature sensor in the fresh-keeping storehouse of seawater, and the saline mixture variations in temperature is less than 1 ℃.In whole storage, can open at any time as required ozone generating-device, reach sterilization, keep the purpose of fish body freshness.
Claims (6)
1. the but method of the fresh-keeping fish of seawater of a supercool, it is characterized in that described method is: described fish employing supercool but seawater fresh-keeping system carries out fresh-keeping, described supercool but seawater fresh-keeping system comprises that Mare Frigoris water storage or saving storehouse, the fresh-keeping storehouse of seawater, disinfection system, seawater circulation system, fish hold reach pipeline, conveyer belt and the compression pump that is used for connection, described Mare Frigoris water storage or saving storehouse is communicated with by the fresh-keeping storehouse of seawater circulation system and seawater, and described fish hold is communicated with by the fresh-keeping storehouse of conveyer belt and seawater; Described Mare Frigoris water storage or saving storehouse comprises the refrigeration coil that is arranged on Mare Frigoris water storage or saving inside, storehouse, the salt solution mixing pump of Mare Frigoris water storage or saving outside, storehouse and the refrigeration system in control Mare Frigoris water storage or saving storehouse, described salt solution mixing pump and refrigeration system are communicated with Mare Frigoris water storage or saving storehouse by pipeline respectively, the fresh-keeping storehouse of described seawater is provided with temperature sensor, is provided with compression pump in described disinfection system and the pipeline that the fresh-keeping storehouse of seawater is communicated with; Described preservation method is: salt and seawater are added respectively Mare Frigoris water storage or saving storehouse, open and form saline mixture after the salt solution mixing pump makes salt and sea water mixing evenly, then opening refrigeration system makes saline mixture be cooled to-5 ~-10 ℃, by seawater circulation system cooled saline mixture is injected the fresh-keeping storehouse of seawater again, by conveyer belt the fish in the fish hold is sent to the fresh-keeping storehouse of seawater, by the refrigerated brine mixture fish body is lowered the temperature, when center temperature of fish is down to-1 ~-3 ℃, when the temperature of saline mixture is-1 ~-6 ℃ in the fresh-keeping storehouse of seawater, open disinfection system and compression pump the fish body in the fresh-keeping storehouse of seawater is carried out sterilization processing 5 ~ 30min, the control seawater circulation system makes after the sterilization processing that the temperature of saline mixture is maintained-1 ~-6 ℃ by seawater circulation system and temperature sensor in the fresh-keeping storehouse of seawater, and the saline mixture variations in temperature is less than 1 ℃.
2. the but method of the fresh-keeping fish of seawater of supercool as claimed in claim 1 is characterized in that described disinfection system is ozone disinfecting system.
3. the but method of the fresh-keeping fish of seawater of supercool as claimed in claim 1 is characterized in that junction, the fresh-keeping storehouse of described seawater circulation system and seawater is provided with sea-water purifying device.
4. the but method of the fresh-keeping fish of seawater of supercool as claimed in claim 2, ozone concentration is 2 ~ 10ppm when it is characterized in that described ozone disinfecting system sterilization processing, the processing time is 5 ~ 30min.
5. the but method of the fresh-keeping fish of seawater of supercool as claimed in claim 1 is characterized in that the volume of described seawater is counted 10 ~ 35m with the quality of salt
3/ kg.
6. the but method of the fresh-keeping fish of seawater of supercool as claimed in claim 1 is characterized in that the volume of described saline mixture and the mass ratio of fish are 1 ~ 4:1.
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| CN2012105949714A CN103053668A (en) | 2012-12-31 | 2012-12-31 | Method for preserving seawater fishes through super cooling seawater |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106839480A (en) * | 2017-01-01 | 2017-06-13 | 安徽省国发石化设备有限责任公司 | Fresh and living aquatic products transporting vehicle-mounted handpiece Water Chilling Units |
| CN109850111A (en) * | 2019-02-21 | 2019-06-07 | 中船澄西船舶修造有限公司 | Brine cooling system and its installation method peculiar to vessel with cold-prevention bridge function |
| CN110301472A (en) * | 2018-03-27 | 2019-10-08 | 许喻婷 | The store method and save set of seafood food materials |
| CN111670944A (en) * | 2020-07-01 | 2020-09-18 | 中国水产科学研究院渔业机械仪器研究所 | Circulating cooling bin device |
| CN113970222A (en) * | 2021-09-30 | 2022-01-25 | 浙江工业大学 | Ocean catch graded precooling device and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109850111A (en) * | 2019-02-21 | 2019-06-07 | 中船澄西船舶修造有限公司 | Brine cooling system and its installation method peculiar to vessel with cold-prevention bridge function |
| CN111670944A (en) * | 2020-07-01 | 2020-09-18 | 中国水产科学研究院渔业机械仪器研究所 | Circulating cooling bin device |
| CN113970222A (en) * | 2021-09-30 | 2022-01-25 | 浙江工业大学 | Ocean catch graded precooling device and application thereof |
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Application publication date: 20130424 |