CN103988884B - A kind of soft-shelled turtle lives and kills low temperature liquid quick-freeze fresh-keeping method - Google Patents
A kind of soft-shelled turtle lives and kills low temperature liquid quick-freeze fresh-keeping method Download PDFInfo
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- CN103988884B CN103988884B CN201310653312.8A CN201310653312A CN103988884B CN 103988884 B CN103988884 B CN 103988884B CN 201310653312 A CN201310653312 A CN 201310653312A CN 103988884 B CN103988884 B CN 103988884B
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Abstract
The present invention relates to a kind of method for preserving aquatic products, especially relate to a kind of soft-shelled turtle government official alive low temperature liquid quick-freeze fresh-keeping method.Its soft-shelled turtle mainly solved existing for prior art can cause the bursting by freezing of soft-shelled turtle cell membrane when cold storing and fresh-keeping, food can produce acidifying and rotten, cannot keep fresh aquatic food quality after thawing, mouthfeel and poor etc. the technical problem of soft-shelled turtle peculiar taste.The present invention be adopted by soft-shelled turtle neck to slaughter successively to get blood, immersion, striping, clean, open the back of the body, get built-in, dewater, immerse extraordinary honey carry out quick-frozen in anti-oxidant defishying, de-honey, vacuum packaging, metal detection, immersion low temperature liquid, put into freezer quick-frozen kill harmful parasite, load insulation packing case, put into cold storage bag after surrounding sealing, again with carton external packing, proceed to, the preservation of freezer finished product.
Description
Technical field
The present invention relates to a kind of method for preserving aquatic products, especially relate to a kind of soft-shelled turtle government official alive low temperature liquid quick-freeze fresh-keeping method.
Background technology
China is one of country that output of aquatic products is maximum in the world, is also that unique cultivation amount exceedes the country of amount of fishing in the world.And along with high-quality fresh water soft-shelled turtle introduction and breed, the output of soft-shelled turtle is in continuous expansion.Soft-shelled turtle nourishing is worth abundant, and connective tissue is few, and the soft nutritive value of meat is very high.Chinese patent discloses a kind of soft-shelled turtle government official alive low temperature liquid quick-freeze fresh-keeping method (publication number: CN103168825A), it comprises the following steps: first clean aquatic products cold water to remove dirt impurity, then the aquatic products after cleaning are put into subacidity brine electrolysis to carry out soaking or stir sterilization, aquatic products after sterilization processing are placed in foam safe, cover sterilization fresh-keeping ice, finally carry out joint sealing; Effective chlorine density Acc for the subacidity brine electrolysis of soaking sterilization is 10-30ppm, pH value 5.0-6.5, oxidation-reduction potential 0RP is 700-900mV; Sterilization fresh-keeping ice uses and makes with above-mentioned identical subacidity brine electrolysis; Subacidity brine electrolysis is 2-10min for the time of soaking or stir; The subacidity brine electrolysis and the aquatic product quality that use are than being 4-20:l; During stirring sterilization, rotor speed is at 500-2500rpm.But this preservation method is not suitable for the fresh-keeping of soft-shelled turtle, soft-shelled turtle can cause the bursting by freezing of soft-shelled turtle cell membrane when cold storing and fresh-keeping, and food can produce acidifying and rotten, cannot keep fresh aquatic food quality after thawing, mouthfeel and soft-shelled turtle peculiar taste poor.
Summary of the invention
The present invention is to provide a kind of soft-shelled turtle government official alive low temperature liquid quick-freeze fresh-keeping method, its soft-shelled turtle mainly solved existing for prior art can cause the bursting by freezing of soft-shelled turtle cell membrane when cold storing and fresh-keeping, food can produce acidifying and go bad, fresh aquatic food quality cannot be kept, mouthfeel and poor etc. the technical problem of soft-shelled turtle peculiar taste after thawing.
Above-mentioned technical problem of the present invention is mainly solved by following technical proposals:
A kind of soft-shelled turtle of the present invention lives and kills low temperature liquid quick-freeze fresh-keeping method, it is characterized in that described method comprises:
A. select disease-free high-quality soft-shelled turtle alive to be raw material, every soft-shelled turtle body weight 600-1250 gram, support in special storage pond, holding pond, support temporarily with in sodium chloride brine after soft-shelled turtle harvesting of living, season of stopping eating supports 2-3 days temporarily, and season supported 4-6 days temporarily by food;
B. adopt soft-shelled turtle neck to slaughter and get blood, head is not cut down, after blood process, process use separately; Adopt hot-water soak soft-shelled turtle also to remove whole soft-shelled turtle adventitia, by being attached to the external algae of soft-shelled turtle, parasite type, silt particle class all remove;
C. opened by soft-shelled turtle carapace surrounding cutter and lift carapace, take out built-in and fatty, classification processes process separately, and wash clean also wipes out toenail point, in order to avoid plastic packaging bag punctures bag gas leakage when vacuumizing;
D. select extraordinary nectariferous plant honey to take off raw meat, soft-shelled turtle is immersed in honey de-sweet with centrifuge after more than 2 hours;
E. adopt the soft-shelled turtle quantitative vacuum packaging that edible plastic bag film will be handled well by specification, then carry out quick-freezing fresh-keeping by vacuum-packed whole bag soft-shelled turtle immersion low temperature liquid, then put into quick-freezer immediately until kill harmful parasite; Take out from quick-freezer after killing parasite, load immediately and be quantitatively incubated packing case, and incubator surrounding sealing after putting into cold storage bag, then pack upper outside carton, put into freezer finished product immediately and preserve.
Core process technology of the present invention can not be caused bursting by freezing to freezing segmentation soft-shelled turtle cell membrane, suppresses the acidifying of food and rotten, keeps fresh aquatic food quality after thawing, and ensures mouthfeel and soft-shelled turtle peculiar taste and better quality.One is progressively to change the consumption habit buying the soft-shelled turtle that lives, and solves people slaughter cleaning inconvenience to the soft-shelled turtle that lives; Two is adopt the anti-oxidant deodorization technology of extraordinary honey, the strongly strong fishy smell of removing soft-shelled turtle histidine; Three is be conducive to entering electric business's Express Logistics channel to guarantee that product brand is authentic.
The present invention is a comprehensive supporting de-raw meat preservation technique, expects processing method from source, and application material is all by natural edible materials.Key technology adopts low temperature liquid quick-frozen and salt, honey deodorization technology, be conducive to consumer have by the good Standard cultivation of agricultural, the soft-shelled turtle of edible safety, tasty mouthfeel.
It is raw material that the present invention adopts by the disease-free high-quality of the good Standard cultivation of Chinese agriculture soft-shelled turtle alive, by the CCP of HACCP aquatic food raw material, meets national Safety of Aquatic Products standard after testing.
Slaughter the operating temperature that must control below 20 degree whole, the deadline is no more than 2 hours.
As preferably, seal after being filled with-196 degree liquid nitrogen gases immediately during described step e freezer outbound in incubator, and put carton.25 degree of normal temperature arrives consumer on quality without impact in lower 48 hours, is conducive to electric business's Express Logistics like this and sells.Be conducive to the quality keeping turtle proteins matter.
As preferably, soft-shelled turtle is divided into bulk, sheet by described step c, washes with water clean and drains the water.) have like this and facilitate consumer directly to thaw to cook the soft-shelled turtle cuisines of various taste.
As preferably, the concentration of described sodium chloride brine is 1%.This concentration is best disinfection concentration.
As preferably, in described step b, remove whole soft-shelled turtle adventitia with 70-80 degree hot-water soak soft-shelled turtle.) the external film of soft-shelled turtle can be removed by this temperature and be attached to the algae of soft-shelled turtle body surface, parasite and earth fishy smell.
As preferably, it is qualified to detect through metal detector after soft-shelled turtle is adopted the vacuum packaging of edible plastic bag film by described step e.Be conducive to Product quality and safety.
As preferably, in described step e, the time of being immersed by soft-shelled turtle in low temperature liquid is 8-12 minute.Be conducive to soft-shelled turtle suddenly to freeze to soft-shelled turtle central temperature-18 DEG C under the prerequisite not destroying protein structure in the short time.
As preferably, put in described step e-35 degree quick-freezers within 15 hours, can freeze to death remain in soft-shelled turtle body parasite, microbiology class.
Therefore, the present invention can not be caused bursting by freezing to freezing segmentation soft-shelled turtle cell membrane, suppresses the acidifying of food and rotten, keeps fresh aquatic food quality after thawing, and ensures mouthfeel and soft-shelled turtle peculiar taste and better quality.
Detailed description of the invention
Below by embodiment, technical scheme of the present invention is described in further detail.
Embodiment: a kind of soft-shelled turtle of this example lives and kills low temperature liquid quick-freeze fresh-keeping method, the steps include:
A. adopting by the soft-shelled turtle disease-free alive of the good Standard cultivation of Chinese agriculture is raw material, by the CCP of HACCP aquatic food raw material, meets national Safety of Aquatic Products standard after testing, every soft-shelled turtle body weight 600-1250 gram; Support in special storage pond, holding pond after soft-shelled turtle harvesting of living, support temporarily with in 1% sodium chloride brine, season of stopping eating supports 2 days temporarily, and food is supported 5 days season temporarily;
B. adopt soft-shelled turtle neck to slaughter and get blood, head is not cut down, after blood process, process use separately; Adopt 70-80 degree hot-water soak soft-shelled turtle also to remove whole soft-shelled turtle adventitia, must remove clean, by being attached to the external algae of soft-shelled turtle, parasite type, silt particle class all remove;
C. opened by soft-shelled turtle carapace surrounding cutter and lift carapace, take out built-in and fatty, classification processes process separately, and wash clean also wipes out toenail point, in order to avoid plastic packaging bag punctures bag gas leakage when vacuumizing; Cooking to sell according to client needs, except whole of maintenance, also to may be partitioned into bulk, sheet, drain the water with running water wash clean;
D. be immersed in honey de-sweet with centrifuge after more than 2 hours with Special Anti oxidation honey deodorization technology;
E. adopt edible plastic bag film by specification quantitative vacuum packaging; It is qualified to detect through metal detector; Immerse 8-12 minute quick-freezing fresh-keeping in low temperature liquid through vacuum-packed whole bag soft-shelled turtle, do not destroy turtle proteins matter structure; Then-35 degree quick-freezers 15 hours kill harmful parasites are put into immediately; Take out from-35 degree freezers after killing parasite, load special quantitative insulation packing case immediately, and incubator surrounding sealing after putting into cold storage bag, then pack upper outside carton, put into-18 degree freezer finished products immediately and preserve; Outbound must be inspected harmful microorganism qualified by random samples by lot number before selling and coming into the market and just can enter the market; Put on market after outbound is filled with-196 degree liquid nitrogen gases immediately in special incubator and seal, put paper and close; Outbound departs from freezer and immediately-196 degree liquid nitrogen is filled with special foam thermal insulation box.
The foregoing is only specific embodiments of the invention, but architectural feature of the present invention is not limited thereto, any those skilled in the art is in the field of the invention, and the change done or modification are all encompassed among the scope of the claims of the present invention.
Claims (7)
1. soft-shelled turtle lives and kills a low temperature liquid quick-freeze fresh-keeping method, it is characterized in that described method comprises:
A. select the excellent soft-shelled turtle of disease-free work to be raw material, every soft-shelled turtle body weight 600-1250 gram, support in special storage pond, holding pond after soft-shelled turtle harvesting of living, support temporarily with in sodium chloride brine, the concentration of sodium chloride brine is 1%, and season of stopping eating supports 2-3 days temporarily, and season supported 4-6 days temporarily by food;
B. adopt soft-shelled turtle neck to slaughter and get blood, head is not cut down, after blood process, process use separately; Adopt hot-water soak soft-shelled turtle also to remove whole soft-shelled turtle adventitia, by being attached to the external algae of soft-shelled turtle, parasite type, silt particle class all remove;
C. opened by soft-shelled turtle carapace surrounding cutter and lift carapace, take out internal organ and fat, classification processes process separately, and wash clean also wipes out toenail point, in order to avoid plastic packaging bag punctures bag gas leakage when vacuumizing;
D. select extraordinary nectariferous plant honey, soft-shelled turtle is immersed in honey de-sweet with centrifuge after more than 2 hours after physical treatment;
E. adopt the soft-shelled turtle quantitative vacuum packaging that edible plastic bag film will be handled well by specification, then carry out quick-freezing fresh-keeping by vacuum-packed whole bag soft-shelled turtle immersion low temperature liquid, then put into quick-freezer immediately until kill harmful parasite; Take out from quick-freezer after killing parasite, load immediately in quantitative interlayer heat-insulating packing case, and incubator surrounding sealing after putting into cold storage bag, then pack upper outside carton, put into freezer finished product immediately and preserve.
2. a kind of soft-shelled turtle according to claim 1 lives and kills low temperature liquid quick-freeze fresh-keeping method, seals, and put carton when it is characterized in that described step e freezer outbound in incubator after being filled with-196 degree liquid nitrogen gases immediately.
3. a kind of soft-shelled turtle according to claim 1 lives and kills low temperature liquid quick-freeze fresh-keeping method, it is characterized in that soft-shelled turtle is divided into bulk, sheet by described step c, washes with water clean and drains the water.
4. a kind of soft-shelled turtle according to claim 1 lives and kills low temperature liquid quick-freeze fresh-keeping method, to it is characterized in that in described step b with 70-80 degree hot-water soak soft-shelled turtle and removes whole soft-shelled turtle adventitia.
5. a kind of soft-shelled turtle according to claim 1 lives and kills low temperature liquid quick-freeze fresh-keeping method, and it is qualified to it is characterized in that will detecting through metal detector after soft-shelled turtle is adopted the vacuum packaging of edible plastic bag film by described step e.
6. a kind of soft-shelled turtle according to claim 1 lives and kills low temperature liquid quick-freeze fresh-keeping method, it is characterized in that in described step e, the time of being immersed by soft-shelled turtle in low temperature liquid is 8-12 minute.
7. a kind of soft-shelled turtle according to claim 1 lives and kills low temperature liquid quick-freeze fresh-keeping method, it is characterized in that putting into-35 degree quick-freezer in described step e 15 hours.
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| CN103988884B true CN103988884B (en) | 2016-01-20 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105146585B (en) * | 2015-09-28 | 2017-03-22 | 杭州萧山天福生物科技有限公司 | Method for baking and roasting turtle and tortoise meat and bone sausages through honey |
| CN105918988A (en) * | 2016-04-11 | 2016-09-07 | 张智斌 | Health-preserving medicinal diet used for preventing and controlling tumour and preparation method thereof |
| CN106106705A (en) * | 2016-08-10 | 2016-11-16 | 汪恒森 | A kind of preservation method of Trionyx sinensis Wiegmann |
| CN106615020A (en) * | 2016-12-31 | 2017-05-10 | 马鞍山春盛生态农业有限公司 | Preservation method and processing technology of live-killed 5-7-year-old lotus turtle |
| CN107006754A (en) * | 2017-05-28 | 2017-08-04 | 李彦廷 | A kind of use bamboo fibre cloth bag preserves food, the method for foodstuff |
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| CN103168825B (en) * | 2013-03-19 | 2014-02-26 | 浙江大学 | Aquatic product sterilizing pre-treating and cold-preserving method |
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