CN102125074B - Slaughtering and processing method capable of improving edible quality of tilapia mossambica fillet - Google Patents
Slaughtering and processing method capable of improving edible quality of tilapia mossambica fillet Download PDFInfo
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- CN102125074B CN102125074B CN 201010598389 CN201010598389A CN102125074B CN 102125074 B CN102125074 B CN 102125074B CN 201010598389 CN201010598389 CN 201010598389 CN 201010598389 A CN201010598389 A CN 201010598389A CN 102125074 B CN102125074 B CN 102125074B
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- tilapia mossambica
- slaughtering
- bloodletting
- carbon dioxide
- temporarily
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- A—HUMAN NECESSITIES
- A22—BUTCHERING; MEAT TREATMENT; PROCESSING POULTRY OR FISH
- A22B—SLAUGHTERING
- A22B3/00—Slaughtering or stunning
- A22B3/005—Slaughtering or stunning by means of gas
-
- A—HUMAN NECESSITIES
- A22—BUTCHERING; MEAT TREATMENT; PROCESSING POULTRY OR FISH
- A22B—SLAUGHTERING
- A22B3/00—Slaughtering or stunning
- A22B3/08—Slaughtering or stunning for poultry or fish, e.g. slaughtering pliers, slaughtering shears
- A22B3/083—Stunning devices specially adapted for fish
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Processing Of Meat And Fish (AREA)
- Meat, Egg Or Seafood Products (AREA)
Abstract
The invention discloses a slaughtering and processing method capable of improving the edible quality of a tilapia mossambica fillet. The humanistic slaughtering and processing method comprises the following steps: temporarily fostering the alive tilapia mossambica; introducing carbon dioxide into a temporary fostering pond, so that the tilapia mossambica is chokey and narcose; slantwise cutting the bottom abdomen between two gills and a tilapia mossambica body to the heart in one step; and putting the tilapia mossambica into cold water to bleed. The invention has the advantages that the humanistic slaughtering and processing method of the temporarily-fostered alive tilapia mossambica comprises the following steps: leading the tilapia mossambica to be chokey by the carbon dioxide; and slaughtering, bleeding and cooling, wherein the whole slaughtering procedure is operated under a moderate status, the intense stress reaction of the tilapia mossambica can be avoided, the glycolysis speed of the sugar in the muscular tissue of the tilapia mossambica can be reduced, and the phenomena such as the fast reduction of the PH value of the tilapia mossambica, the fast degradation of the nucleotide and the like can be avoided, so that the edible quality of the tilapia mossambica fillet is improved, and the quality guarantee period of the tilapia mossambica fillet is prolonged.
Description
Technical field
The invention belongs to technical field of aquatic product processing.It specifically is a kind of processing method of slaughtering that improves Tilapia mossambica fillet edible quality.
Background technology
China is that the maximum Tilapia mossambica in the whole world is cultured and processing big country, and the Tilapia mossambica after the mode of slaughtering of China Tilapia mossambica mainly will be supported temporarily at present picks up, by tight fish head; End belly oblique cutting one cutter between the both sides fish gill and fish body is to heart then; Put into the bloodletting mode of directly slaughtering of water again, slaughter in the process Tilapia mossambica and struggle fiercely, cause sugar glycolysis rapidly in the body whole; Produce a large amount of lactic acid, the pH value that causes oppressing descends fast; Also degraded rapidly of atriphos in the body simultaneously, the freshness that causes oppressing descends fast, thereby quickens to ice the quality deterioration of bright or freezing fillet, and shelf life shortens.In addition, according to the relevant regulations in the animal welfare methods such as " protection are butchered and used animal European Convention " " each contracting party should guarantee to slaughter construction design and the equipment in room and the regulation that operation meets this convention thereof, makes animal avoid unnecessary stimulation and misery ".Adopt directly the slaughter bloodletting mode of fish under wide-awake situation, fish has been caused strong impulse and misery, violated relevant animal welfare method.
Fish is kept normal physiological metabolism through the oxygen in the fish gill respiration water, and when carbon dioxide content was too high in the water, fish can be suffocated because of anoxic, produces the stupor even the phenomena of mortality.Because the solubility of carbon dioxide in water is higher relatively, therefore, can directly feed carbon dioxide in the water; Improve concentration of carbon dioxide in the water rapidly, make fish suck a large amount of carbon dioxide and get into comatose state rapidly, and then slaughter bloodletting owing to the short time; The whole process of slaughtering is under the gentle state carries out; Avoid fish is caused strong impulse and misery, improved the welfare of slaughtering of Tilapia mossambica, avoid producing phenomenons such as flesh of fish pH value descends fast, the rapid degraded of nucleotides simultaneously; Thereby improve the edible quality of fillet, prolong the shelf-life of fillet.
Summary of the invention
The purpose of this invention is to provide a kind of processing method of slaughtering that improves Tilapia mossambica fillet edible quality, be mainly used in Tilapia mossambica processing.
The technical scheme that solves the problems of the technologies described above is following:
A kind of processing method of slaughtering that improves Tilapia mossambica fillet edible quality; Be with fresh and alive Tilapia mossambica after supporting temporarily; Feed carbon dioxide in the storage pond, holding pond and make the Tilapia mossambica stupor of suffocating; End belly oblique cutting one cutter between the both sides fish gill and fish body is put into the humanity of cold water bloodletting again and is slaughtered processing method to heart then, and operating procedure is following:
1. support temporarily: fresh and alive Tilapia mossambica is put into storage pond, holding pond support temporarily, the weight ratio of storage pond, holding pond Zhong Shui and fish was not less than 3: 1, and water temperature is no more than 25 ℃, and uninterrupted past storage pond, holding pond feeds compressed air or oxygen; And in time remove the foam that produces, the time of supporting temporarily is no less than 3 hours.
2. carbon dioxide suffocates: after supporting end temporarily; Stop to feed compressed air or oxygen toward storage pond, holding pond; Change logical carbon dioxide into, the flow of carbon dioxide gas amount of feeding is controlled in per 100 premium on currency 5～50 liters/minute, and continuing the feeding time is 2～10 minutes; When Tilapia mossambica be in belly up, afterbody only can slightly swing comatose state the time, stop to feed carbon dioxide.
3. slaughter: the Tilapia mossambica of the stupor of will suffocating is delivered to through conveyer belt and kills the Yutai, pins the fish head, and end belly oblique cutting one cutter between the both sides fish gill and fish body will be slaughtered the back Tilapia mossambica and put into the bloodletting of bloodletting groove to heart then.
4) bloodletting: the circulating water in the bloodletting groove is controlled at 10～15 ℃, and the bloodletting time was controlled at 20～40 minutes, promptly accomplishes the process of slaughtering of Tilapia mossambica after bloodletting finishes, and can get into the follow-up Tilapia mossambica fillet such as sheet, peeling that cut open and process workshop sections.
Beneficial effect of the present invention:
1. compare with the bloodletting processing method of directly slaughtering of Tilapia mossambica; This method adopts carbon dioxide earlier Tilapia mossambica to be suffocated and slaughters bloodletting again after the stupor, and the whole process of slaughtering is under the gentle state carries out, and avoids fish is caused strong impulse and misery; Improved the welfare of slaughtering of Tilapia mossambica; Avoid producing phenomenons such as flesh of fish pH value descends fast, the rapid degraded of nucleotides simultaneously, thereby improve the edible quality of fillet, prolong the shelf-life of fillet.
2. compare with other modes of suffocating, compare like the carbon monoxide mode of suffocating, the carbon dioxide that this method adopts is safer, consumption still less, financial cost is lower, can not change the color of Tilapia mossambica musculature simultaneously, still keeps original whiteness.Compare with the electric shock mode, this method is safer, leaky can not occur, and running cost is also lower.
3. the inventive method production operation is simpler and easy, suitability for industrialized production.Can improve the crudy of Tilapia Fillet and the animal welfare of Tilapia mossambica, thereby improve economic benefit of enterprises and social image, promote the development of Tilapia mossambica industry.
The specific embodiment
Embodiment 1
It is following that a kind of humanity that improves Tilapia mossambica fillet edible quality is slaughtered processing method: 1) support temporarily: will fresh and alive Tilapia mossambica to put into storage pond, holding pond foster temporarily; The weight ratio of storage pond, holding pond Zhong Shui and fish was not less than 3: 1; Water temperature is no more than 25 ℃, and uninterrupted toward storage pond, holding pond feeding compressed air or oxygen; And in time remove the foam that produces, the time of supporting temporarily is no less than 3 hours; 2) carbon dioxide suffocates: after supporting end temporarily; Stop to feed compressed air or oxygen toward storage pond, holding pond; Change the feeding carbon dioxide into; The flow of carbon dioxide gas amount that feeds in per 100 premium on currency is controlled at 5 liters/minute, and continuing the feeding time is 10 minutes, ventilation finish the back Tilapia mossambica be in belly up, afterbody only can slightly swing comatose state the time; 3) slaughter: the Tilapia mossambica of the stupor of will suffocating is delivered to through conveyer belt and kills the Yutai, pins the fish head, and end belly oblique cutting one cutter between the both sides fish gill and fish body will be slaughtered the back Tilapia mossambica and put into the bloodletting of bloodletting groove to heart then; 4) bloodletting: the circulating water in the bloodletting groove is controlled at 10～15 ℃, and the bloodletting time was controlled at 20～40 minutes, promptly accomplishes the process of slaughtering of Tilapia mossambica after bloodletting finishes, and can get into the follow-up Tilapia mossambica fillet such as sheet, peeling that cut open and process workshop sections.
Embodiment 2
It is following that a kind of humanity that improves Tilapia mossambica fillet edible quality is slaughtered processing method: 1) support temporarily: will fresh and alive Tilapia mossambica to put into storage pond, holding pond foster temporarily; The weight ratio of storage pond, holding pond Zhong Shui and fish was not less than 3: 1; Water temperature is no more than 25 ℃, and uninterrupted toward storage pond, holding pond feeding compressed air or oxygen; And in time remove the foam that produces, the time of supporting temporarily is no less than 3 hours; 2) carbon dioxide suffocates: after supporting end temporarily; Stop to feed compressed air or oxygen toward storage pond, holding pond; Change the feeding carbon dioxide into; The flow of carbon dioxide gas amount that feeds in per 100 premium on currency is controlled at 50 liters/minute, and continuing the feeding time is 2 minutes, ventilation finish the back Tilapia mossambica be in belly up, afterbody only can slightly swing comatose state the time; 3) slaughter: the Tilapia mossambica of the stupor of will suffocating is delivered to through conveyer belt and kills the Yutai, pins the fish head, and end belly oblique cutting one cutter between the both sides fish gill and fish body will be slaughtered the back Tilapia mossambica and put into the bloodletting of bloodletting groove to heart then; 4) bloodletting: the circulating water in the bloodletting groove is controlled at 10～15 ℃, and the bloodletting time was controlled at 20～40 minutes, promptly accomplishes the process of slaughtering of Tilapia mossambica after bloodletting finishes, and can get into the follow-up Tilapia mossambica fillet such as sheet, peeling that cut open and process workshop sections.
Embodiment 3
It is following that a kind of humanity that improves Tilapia mossambica fillet edible quality is slaughtered processing method: 1) support temporarily: will fresh and alive Tilapia mossambica to put into storage pond, holding pond foster temporarily; The weight ratio of storage pond, holding pond Zhong Shui and fish was not less than 3: 1; Water temperature is no more than 25 ℃, and uninterrupted toward storage pond, holding pond feeding compressed air or oxygen; And in time remove the foam that produces, the time of supporting temporarily is no less than 3 hours; 2) carbon dioxide suffocates: after supporting end temporarily; Stop to feed compressed air or oxygen toward storage pond, holding pond; Change the feeding carbon dioxide into; The flow of carbon dioxide gas amount that feeds in per 100 premium on currency is controlled at 20 liters/minute, and continuing the feeding time is 5 minutes, ventilation finish the back Tilapia mossambica be in belly up, afterbody only can slightly swing comatose state the time; 3) slaughter: the Tilapia mossambica of the stupor of will suffocating is delivered to through conveyer belt and kills the Yutai, pins the fish head, and end belly oblique cutting one cutter between the both sides fish gill and fish body will be slaughtered the back Tilapia mossambica and put into the bloodletting of bloodletting groove to heart then; 4) bloodletting: the circulating water in the bloodletting groove is controlled at 10～15 ℃, and the bloodletting time was controlled at 20～40 minutes, promptly accomplishes the process of slaughtering of Tilapia mossambica after bloodletting finishes, and can get into the follow-up Tilapia mossambica fillet such as sheet, peeling that cut open and process workshop sections.
Claims (1)
1. processing method of slaughtering that can improve Tilapia mossambica fillet edible quality; It is characterized in that fresh and alive Tilapia mossambica after supporting temporarily; Feed carbon dioxide in the storage pond, holding pond and make the Tilapia mossambica stupor of suffocating; End belly oblique cutting one cutter between the both sides fish gill and fish body is put into the humanity of cold water bloodletting again and is slaughtered processing method to heart then, and operating procedure is following:
1) support temporarily: fresh and alive Tilapia mossambica is put into storage pond, holding pond support temporarily, the weight ratio of storage pond, holding pond Zhong Shui and fish was not less than 3: 1, and water temperature is no more than 25 ℃, and uninterrupted past storage pond, holding pond feeds compressed air or oxygen; And in time remove the foam that produces, the time of supporting temporarily is no less than 3 hours;
2) carbon dioxide suffocates: after supporting end temporarily; Stop to feed compressed air or oxygen toward storage pond, holding pond; Change logical carbon dioxide into, the flow of carbon dioxide gas amount of feeding is controlled in per 100 premium on currency 5～50 liters/minute, and continuing the feeding time is 2～10 minutes; When Tilapia mossambica be in belly up, afterbody only can slightly swing comatose state the time, stop to feed carbon dioxide;
3) slaughter: the Tilapia mossambica of the stupor of will suffocating is delivered to through conveyer belt and kills the Yutai, pins the fish head, and end belly oblique cutting one cutter between the both sides fish gill and fish body will be slaughtered the back Tilapia mossambica and put into the bloodletting of bloodletting groove to heart then;
4) bloodletting: the circulating water in the bloodletting groove is controlled at 10～15 ℃, and the bloodletting time was controlled at 20～40 minutes, promptly accomplishes the process of slaughtering of Tilapia mossambica after bloodletting finishes, and can get into follow-up sheet, the peeling Tilapia mossambica fillet processing workshop section cutd open.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010598389 CN102125074B (en) | 2010-12-21 | 2010-12-21 | Slaughtering and processing method capable of improving edible quality of tilapia mossambica fillet |
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| CN 201010598389 CN102125074B (en) | 2010-12-21 | 2010-12-21 | Slaughtering and processing method capable of improving edible quality of tilapia mossambica fillet |
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| Publication Number | Publication Date |
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| CN102125074A CN102125074A (en) | 2011-07-20 |
| CN102125074B true CN102125074B (en) | 2012-05-16 |
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| CN 201010598389 Expired - Fee Related CN102125074B (en) | 2010-12-21 | 2010-12-21 | Slaughtering and processing method capable of improving edible quality of tilapia mossambica fillet |
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| CN110269211A (en) * | 2019-05-22 | 2019-09-24 | 福建福铭食品有限公司 | A kind of slaughter device that Rofe carp fillets edible quality can be improved and processing method |
| CN111480816A (en) * | 2020-04-17 | 2020-08-04 | 中国水产科学研究院淡水渔业研究中心 | Freshwater fish processing method |
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| AP2006003482A0 (en) * | 2003-06-20 | 2006-02-28 | Grain Processing Corp | Freezing method and apparatus. |
| ZA200701728B (en) * | 2004-07-28 | 2008-07-30 | Mpsc Inc | Method and apparatus for processing animals |
| WO2007120973A2 (en) * | 2006-02-10 | 2007-10-25 | Air Products And Chemicals, Inc. | Process and apparatus for depopulating groups of animals |
| CN101032337A (en) * | 2007-02-07 | 2007-09-12 | 益阳益华水产品有限公司 | Channel catfish ictalurus punctatus deepfreezed fillets and processing technique |
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