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149 results about "Swim bladder" patented technology

The swim bladder, gas bladder, fish maw, or air bladder is an internal gas-filled organ that contributes to the ability of many bony fish (but not cartilaginous fish) to control their buoyancy, and thus to stay at their current water depth without having to waste energy in swimming. Also, the dorsal position of the swim bladder means the center of mass is below the center of volume, allowing it to act as a stabilizing agent. Additionally, the swim bladder functions as a resonating chamber, to produce or receive sound.

Method for preparing antioxidant oligopeptide by performing ultrasonic enzymolysis on swim bladders

The invention provides a method for preparing antioxidant oligopeptide by performing ultrasonic enzymolysis on swim bladders. The method comprises the following steps of: crushing the swim bladders into swim bladder powder; adding a phosphate buffer solution with the pH value of 6.0 and trypsin into the swim bladder powder and stirring uniformly to obtain a swim bladder solution; performing enzymolysis on the swim bladder solution in water bath; performing ultrasonic treatment on the swim bladder solution for enzymolysis; after ultrasonic treatment, continuously performing enzymolysis in constant-temperature water bath; after the enzymolysis is finished, deactivating enzyme, cooling and filtering to obtain supernate; performing ultrafiltration on the supernate by using a 10,000-Da ultrafiltration membrane; and freeze-drying the solution obtained after ultrafiltration to obtain the swim bladder antioxidant oligopeptide. The antioxidant oligopeptide prepared by the method has a good effect of eliminating free radicals of a human body, can prevent ageing, inflammation and heart cerebrovascular diseases caused by arteriosclerosis, and can serve as a nutritional additive to be applied to food.
Owner:HAINAN UNIVERSITY

Antihypertensive peptide of swim bladder of large yellow croaker and preparation method and use thereof

The invention discloses an antihypertensive peptide of a swim bladder of a large yellow croaker and a preparation method and use thereof. The amino acid sequence of the antihypertensive peptide is Leu-Arg-Pro-Ile(SEQ ID No:1). The molecular weight detected through ESI-MS (Electrospray Ionization Mass Spectrometry) is 497.65Da([M+H]+498.48Da). The preparation method comprises the following steps: washing the swim bladder of the large yellow croaker by distilled water, homogenizing by a high speed tissue stamp mill, extracting by a Na2HPO4-NaH2PO4 buffer liquid, and fractionally precipitating by ammonium sulfate to obtain a coarse protein; and sequentially carrying out enzymolysis on the coarse protein by trypsin and alkaline protease, centrifugalizing, ultrafiltering and chromatographically refining the zymolyte to obtain the antihypertensive peptide. The preparation process of the antihypertensive peptide disclosed by the invention is scientific and reasonable, the enzymolysis process by double enzymes is easy to control, and the prepared antihypertensive peptide has a remarkable inhibiting effect on the angiotensin converting enzyme (ACE), has the advantages of easy digestive absorption, safety, no toxic and side effects and the like and can be used as a medicine and a health-care food.
Owner:ZHEJIANG OCEAN UNIV

Method for preparing antihypertensive peptides by utilizing probiotic fermented marine organism processing leftovers

The invention relates to a method for preparing antihypertensive peptides by utilizing probiotic fermented marine organism processing leftovers. The method uses fish skin, squid skin, swimming bladder or fish scale and other collagen-enriched marine organism processing leftovers as raw materials, and comprises the following steps: washing and pulping; heating to kill microorganisms; cooling, and adding protease to perform liquefaction treatment; deactivating enzyme, adding glucose, and putting into a fermentation tank; sterilizing, inoculating a probiotic starter, fermenting and then removing residues; adding a cryoprotectant into the fermentation filtrate; freezing and drying to directly obtain a composite antihypertensive bio-preparation containing activated probiotics and bioactive peptides; furthermore, filtering the fermentation filtrate with a membrane, purifying, concentrating, and spray-drying to obtain the antihypertensive peptide product. By adopting the technical scheme combining protease liquefaction and probiotic fermentation, compared with a traditional enzyme preparation process, the method has the advantages that the preparation efficiency of high-activity antihypertensive oligopeptide can be improved, and the additional value of marine organism processing leftovers can be increased. The method is reasonable and effective in preparation process, and is suitable for industrial production.
Owner:JIANGNAN UNIV

Preparation method of fish maw protein beverage

The invention discloses a preparing method of a swim bladder protein beverage, belonging to the technical field of aquatic product processing. The swim bladder protein beverage uses dry swim bladder as raw material and is produced after the preparation, the enzymatic hydrolysis, the debiting and deodourizing, the blending, the can filling and the sterilizing of swim bladder slurry. Enzyme is adopted for the controllable degradation of the swim bladders. The reaction conditions are mild. Few nutritional components are lost. A compound method is adopted for debiting and deodourizing enzyme solution. And the special masking function of natural products is also adopted. After the flavoring, the swim bladder protein beverage with perfect taste and flavor and both nutritional and healthy values is obtained. The preparing method of the swim bladder protein beverage improves the processing level and added value of the swim bladders, eliminates poor flavors of swim bladder protein degradation products of fishy smell, bit, and the like and can be applied to the industrialized production. The beverage has the advantages that the product nutritional value is high, the digestion and absorption are easy and the drinking is convenient.
Owner:段振华

Intelligent feeding system and method based on growth model and sonar feedback

The invention discloses an intelligent feeding method based on a growth model and sonar feedback. The intelligent feeding method comprises the following steps: S1, establishing a growth model and a feeding prediction model of a fed group; S2, acquiring average specification data of fed groups by the aid of sonar systems before the feed is fed; S3, according to the growth model, the feeding prediction model and the average specification data of the fed group, formulating the feeding amount of the day, and determining the basic feeding amount of each meal in combination with the feeding frequency; s4, feeding the fed group according to the basic feeding amount of each meal, and meanwhile, detecting the number of swim bladder echoes in the feeding process of the fed group by utilizing a sonarsystem; S5, performing analysis processing based on a given algorithm on the echo number of the fish, and grading the number of feeding objects; s6, making a feeding decision according to the aggregation number of the fed groups; and S7, controlling the feeding rate and the feeding amount of the fed group according to the feeding decision.
Owner:四川渔光物联技术有限公司

Instant flavored swimming bladder fillet and preparing method thereof

The invention discloses an instant flavored swimming bladder fillet and a preparing method thereof. The method comprises the steps of (1) cleaning and impurity removal, (2) rinsing and deodorization, (3) drying, (4) filling, (5) performing, (6) dressing, (7) quick-freezing, (8) vacuum drying and deoiling, and (9) cooling and packaging. Due to the fact that swimming bladders are filled with seasoning and are preformed, shaped and dressed, the swimming bladders can have different tastes and be in a uniform flake shape after being fried and puffed, original nutritive value is maintained, and good organoleptic quality is realized.
Owner:吴海军

Device for Releasing Gas Trapped in Fish

A device for venting gases from the swim bladder of fish is provided. The device includes a puncturing member that can be extended, locked in the extended position and retracted into a case. Gases are vented from the case through the puncturing member.
Owner:RAUS SCOTT D

Swim bladder source biological valve material as well as preparation method and application thereof

ActiveCN108578781AHigh yieldGood thickness uniformityTissue regenerationProsthesisCross-linkCalcification
The invention relates to a swim bladder source biological valve material as well as a preparation method and an application thereof. The preparation method comprises the following steps: cutting a swim bladder and conducting decellularization treatment on the swim bladder, so that a decellularized swim bladder is obtained; conducting immobilized cross-linking on the decellularized swim bladder, and rinsing the decellularized swim bladder obtained from cross-linking, so that the swim bladder source biological valve material is obtained. In comparison with existing bovine pericardium source biological valve materials, the swim bladder source biological valve material provided by the invention is smooth in both sides and good in uniformity of material thickness, and the swim bladder source biological valve material is nearly free from fat and other adhesion tissues, so that a raw material processing course becomes simpler to operate, and a yield of preparing biological valves from swim bladders is improved; and the swim bladder source biological valve material is equivalent with the bovine pericardium source biological valve materials in mechanical performance, however anti-calcification performance of the swim bladder material is much better than that of the bovine pericardium material, so that a shortcoming of bovine pericardium biological valves which are insufficient in service life can be overcome, and problems of the existing bovine pericardium source biological valve materials which are poor in durability, easy to cause calcification and the like can be solved.
Owner:INST OF BIOMEDICAL ENG CHINESE ACAD OF MEDICAL SCI

Artificial spawning induction method for rhinogobio ventralis

The invention discloses an artificial spawning induction method for rhinogobio ventralis. According to the method, the male and female proportion of mature parent fishes is 1:1.5; spawning induction medicine is lutropin releasing hormone analogies, and the dosage of the medicine is 6 micrograms per kilogram of fish weight; according to an artificial fertilization method, female fishes awaiting spawning are caught, moisture of fish bodies are wiped to be dry, ova are extruded into a dry container, then male fishes awaiting spawning are caught, genital openings are wiped to be dry, seminal fluid is sucked up through an injector, placed in a sperm dilution and then mixed with the ova, activation is performed by clear water, standing is performed for two minutes, and then fertilized ova are poured into an incubator for incubation; the flow speed of water bodies in the incubator before stripping of the fertilized ova is 0.4 m / s, the flow speed after stripping is 0.2 m / s, after stripping, the fertilized ova grow in the incubator until fish fry swim bladders are inflated, and then fish fry cultivation can be performed. The spawning induction rate is larger than 65%, the fertilization rate is larger than 85%, the incubation rate is larger than 80%, a large number of fish fries can be provided for batch production of the fish fries of the specification of rhinogobio ventralis, and therefore proliferation liberation of the rhinogobio ventralis is achieved.
Owner:YANGTZE RIVER FISHERIES RES INST CHINESE ACAD OF FISHERY SCI +1

Preparation and preservation method of biovalve material treated by combination of double-bond polymerization and enzyme inhibitor

InactiveCN110772666AImprove stabilityImprove anti-calcification propertiesTissue regenerationProsthesisPolymer scienceGlycidyl methacrylate
The invention discloses a preparation and preservation method of a biovalve material treated by combination of double-bond polymerization and an enzyme inhibitor. The preparation method comprises thefollowing steps that a, a swim bladder is cut and decellularized; b, the decellularized swim bladder is soaked in a glycidyl methacrylate solution and an initiator for double-bond polymerization and crosslinking; c, a glycosaminoglycase inhibitor is adopted for soaking; d, a mixed solution of carbodiimide and N-hydroxysuccinimide is adopted for crosslinking and fixation; and e, a bacteriostatic solvent is adopted for preservation after rinsing, or preservation is conducted after an alcoholic solution is adopted for dehydrating and drying. According to the prepared biovalve material, the stability and anti-calcification performance of glycosaminoglycan are improved, and a novel biovalve material with application prospect is achieved.
Owner:SICHUAN UNIV

Gel type fish soup product and production process thereof

The invention relates to a gel type fish soup product and a production process thereof, belonging to the technical field of aquatic product processing. The production process comprises the following steps: marinading a fish body in a marinading material and draining water, coating the surface of the fish body with starch by patting, frying the coated fish body, placing the fried fish body, ginger and shallot in hot stilled water for stewing; stewing cleaned fish scale at high pressure to obtain fish scale glue solution; and finally adding the fish scale glue solution in the stewed fish soup, heating the mixture, and uniformly mixing the fish scale glue solution and the fish soup, and cooling the mixture to form the final product. In the invention, collagen in fish meat, fish skin, swim bladders and the fish scale are sufficiently utilized, so that the product is in a solid gel state, and characteristics of original shape, original soup and original taste of traditional fish soup are retained. The gel type fish product can be preserved at 0-4 DEG C, and can be eaten quickly and conveniently at any time. Complete fish soup can be obtained when the gel type fish soup product is heated, and the gel type fish soup product can be directly eaten as a fish gel. The product contains complete amino acids and abundant nutrients, is strong white in color, and is delicious and smooth in taste without greasy taste. When the gel type fish soup product is heated, the obtained fish soup is mellow and delicious in taste.
Owner:JIANGSU ACADEMY OF AGRICULTURAL SCIENCES

Method for preparing beluga swimming bladder protein peptide

The invention provides a method for preparing a beluga swimming bladder protein peptide. The method specifically comprises the following steps: treating and shredding fresh beluga swimming bladders, adding 5-fold dilute alkali liquor, soaking for 3 hours, performing centrifugal separation, washing the precipitate until the pH value is neutral; adding a 5-fold dilute acid solution, soaking for 2 hours, performing centrifugal separation, and washing the precipitate until the pH value is neutral; adding 10-fold water, extracting at the temperature of 90 DEG C for 6 hours, and filtering; cooling to 50 DEG C, regulating the pH value to 9, adding 0.5 percent of alkaline protease, performing enzymolysis at the temperature of 50 DEG C for 4 hours, and performing enzyme deactivation at the temperature of 95 DEG C for 5 minutes; cooling to 45 DEG C, regulating the pH value to be 2.5, adding 0.3 percent of acid proteinase, performing enzymolysis at the temperature of 45 DEG C for 5 hours, and performing enzyme deactivation at the temperature of 95 DEG C for 5 minutes; and regulating the pH value to be neutral, filtering, desalting, concentrating, and drying, thereby obtaining the beluga swimming bladder protein peptide.
Owner:HARBIN PATERNA BIOTECH DEV

Selenium-rich health duck feed and preparation method thereof

The invention discloses a selenium-rich health duck feed and a preparation method thereof. The feed comprises the following raw materials in parts by weight: 42-45 parts of selenium-rich broken rice, 30-35 parts of selenium-rich corn flour, 20-23 parts of bran, 10-12 parts of swim bladder, 10-12 parts of rock flour, 6-8 parts of beer grains, 3-5 parts of flaxseed, 0.1-0.3 part of vitamin D, 0.2-0.3 part of lysine, 2-4 parts of salt, 1-2 parts of succinic acid, 1-3 parts of palm bark, 2-4 parts of rambutan, 4-6 parts of pomegranate rind, 3-5 parts of glutinous rice root hair, 2-4 parts of calcium bicarbonate, 0.05-0.08 part of organic chromium, 0.2-0.4 part of copper sulfate and 0.1-0.3 part of ferrous sulfate. The selenium-rich feed disclosed by the invention has the advantages that on the basis of optimizing formulas of conventional feeds, the selenium-rich broken rice and the selenium-rich corn flour which are capable of improving the immunity and the heath condition of ducks are added into the raw materials of the conventional feeds according to a certain proportion; in the meantime, Chinese herbal medicines capable of improving the color, the quality and the taste of duck meat are added in proportion to form the selenium-rich nutritional feed.
Owner:FENGTAI COUNTY RUIPU AGRI DEV

Preparation method of swimming bladder bioprosthetic valve material and preservation method thereof

InactiveCN110755688AImprove stabilityImprove anti-calcification propertiesTissue regenerationProsthesisSwim bladderBiology
The invention discloses a preparation method of a swimming bladder bioprosthetic valve material and a preservation method thereof. The preparation method comprises the following steps: a, cutting anddecellularizing swimming bladders; b, carrying out cross-linking immobilization on the decellularized swimming bladders by adopting glutaraldehyde; c, carrying out cross-linking post-treatment by adopting a polyphenol glycosaminoglycan enzyme inhibitor or carrying out cross-linking post-treatment by adopting a polyphenol compound and ferric chloride; and d, after rinsing, preserving by adopting anantibacterial solvent or preserving after dehydrating and drying by adopting an alcoholic solution. According to the swimming bladder bioprosthetic valve material prepared by the invention, the stability and the anti-calcification performance of glycosaminoglycan are improved, and the swimming bladder bioprosthetic valve material is the novel bioprosthetic valve material with an application prospect.
Owner:SICHUAN UNIV

Swim bladder kidney-reinforcing pill preparation and method for preparing same

The invention relates to a swim bladder kidney-reinforcing pill preparation and a method for preparing same. The preparation is water-honey pill prepared by honey and water and sodium carboxymethyl cellulose used as adjuvant is added in the swim bladder kidney-reinforcing pill.
Owner:王玉锦

Environment-friendly crab feed and preparation method thereof

The invention discloses an environment-friendly crab feed and a preparation method thereof. The environment-friendly crab feed is characterized by comprising the following raw materials in parts by weight: 23-28 parts of rapeseed meal, 25-30 parts of cottonseed meal, 20-25 parts of Chinese yam, 19-23 parts of pumpkin seed, 17-20 parts of oat, 16-19 parts of high gluten flour, 15-18 parts of egg shell powder, 27-34 parts of goat blood, 22-27 parts of swim bladder, 4-6 parts of broad bean sauce, 3-5 parts of rock candy, 5-8 parts of sunflower seed oil, 19-24 parts of seaweed, 18-20 parts of bitter gourd, 14-17 parts of hawthorn, 12-15 parts of yellow peaches, 3-5 parts of lavender, 1-3 parts of vervain, 0.7-1.3 parts of pseudo-ginseng, 4-7 parts of phagostimulant, and a proper amount of water. According to the invention, the added high gluten flour can improve the flexibility and plasticity of the feed, and the rapeseed meal, the cottonseed meal, the pumpkin seed and the oat are rich in nutrition, have rich essential nutrition such as amino acid, vitamins and dietary fiber, can improve the intestines and stomach functions of crabs, and facilitate improving the appetite and digestion-absorption function of crabs; the feed provided by the invention is excellent in utilization ratio, high in nutritive value, simple in preparation and low in cost, avoids additives and improves the cultivation water quality.
Owner:上海红马饲料有限公司

Method for extracting fish oil from internal organs of elopichthys bambusa by utilizing neutral protease

The invention discloses a method for extracting fish oil from internal organs of elopichthys bambusa by utilizing neutral protease. The method comprises the following steps: 1, removing the gall bladder, swim bladder and digests in the intestinal tract in the internal organs of elopichthys bambusa, cleaning, draining and mincing into the homogenate; 2, mixing the homogenate and water according to a weight ratio of (1:1.0)-(1:3.0), uniformly stirring, adding hydrochloric acid or sodium hydroxide to regulate the pH value to be 6.5-7.0, adding the neutral protease which has 2.0-3.0 percent of the weight of the homogenate based on the weight of the homogenate, uniformly mixing, performing enzymatic hydrolysis in the temperature range of 40-55 DEG C for 2.0-3.0 hours, and forming enzymatic hydrolysate; and 3, filling the enzymatic hydrolysate in a container, and centrifuging under the condition of 4000-5000r / min for 10-20 minutes through a centrifugal machine, wherein the centrifuged enzymatic hydrolysate is divided into four layers which are sequentially a fish oil layer, a non-enzymolysis layer, an enzymatic hydrolysate layer and a residue layer from top to bottom, and the fish oil on the uppermost layer is the final fish oil. The method has the beneficial effects that the technology for extracting the fish oil from the internal organs of elopichthys bambusa is wide in technical parameter range, the difficulty of industrial production is low, and the cost is low.
Owner:JISHOU UNIVERSITY +1

Construction method of Epinephelus fuscoguttatus swim bladder cell line

The invention relates to a method for constructing an air bladder cell system of blotchy rockcod, which comprises: taking an air bladder tissue of the blotchy rockcod as a material to start primary culture, and culturing the air bladder tissue in a DMEM / F12 liquid medium which contains fetal calf serum, carboxymethyl chito-oligosaccharide, basic fibroblast growth factors, I-type insulin-like growth factors, N-acetyl glucose hydrochloride and culture supernatant of heart cells of the blotchy rockcod in the log phase and has a pH value of between 7.0 and 7.4; and adopting a trypsin digestion method for subculturing. The air bladder cell system of the blotchy rockcod constructed by the method is subcultured for 62 generations currently. The technology is scientific and reasonable, is hopeful to be applied to ecotoxicological research, performs pollution monitoring and safety evaluation on various environmental pollutants in the sea, and can also be applied to separation, identification and in vitro breeding of fish viroids, and research in the aspects of interaction of viruses and host cells, and so on.
Owner:OCEAN UNIV OF CHINA

Folding safety lifeboat

The invention discloses novel equipment: a folding safety lifeboat which is mainly used for flood lifesaving. The boat comprises a boat frame, a compartment pocket and a swim bladder which are combined. The boat frame comprises by-frames, a crosspiece and a boat wing which are structurally combined. The by-frames are arranged on both sides, and each by-frame is divided into three sections, the junctions can be turned, and both ends of the by-frames on both sides are mutually connected. The crosspiece is supported and connected between the by-frames on both sides, and can be fixedly supported and folded. The boat wing is arranged on the outer side of the boat frame and is connected with the by-frames, can be lifted and turned, and is symmetrical. The compartment pocket is arranged in the boat frame, is provided with a buckle which is buckled with the boat frame, can be folded, loaded and unloaded; and the swim bladder is provided with a mouth and an air valve, and the mouth can be opened and closed. The folding safety lifeboat has the advantages of convenient use, safety and reliability and suitability for popularization, and is ideal equipment for flood lifesaving and flood self-saving.
Owner:陈国英

Process of utilizing sturgeon raw material to extract collagen

The invention discloses a process of utilizing a sturgeon raw material to extract collagen. The process includes following steps: 1), selecting sturgeon skin and / or swim bladder which is washed cleanas a raw material, slicing, adding into 5-10wt% sodium hydroxide solution for soaking for 5-10h, filtering, and washing the material clean; 2), adding a material obtained in the step 1) into a defatting mixed solution for defatting for 1-2h, performing ultrasonic treatment during defatting, and washing clean after ultrasonic treatment is completed; 3), adding a material obtained in the step 2) into acid for swelling, homogenizing, using a sodium hydroxide solution to adjust pH to 4.0-5.5, adding protease for enzymolysis, adding yeast powder after enzymolysis is completed, controlling temperature at 30-35 DEG C, stirring for reaction for 2h, and performing enzyme deactivation; 4), discoloring enzymolysis liquid obtained after enzyme deactivation in the step 3), centrifuging, purifying, concentrating, and spray-drying to obtain collagen powder. The process can quickly extract collagen, and the collagen extracted by the process is high in purity, small in molecular weight and easy to absorb.
Owner:湖北清江鲟龙渔业有限公司

Grass carp swim bladder epithelioid cells line and application

InactiveCN103952369ALesion time is fastHigh proliferationMicroorganism based processesVertebrate cellsVaccine researchSwim bladder
The invention discloses a grass carp swim bladder epithelioid cells line and an application. According to the grass carp swim bladder epithelioid cells line with a preservation number of CCTCC No.C201443, Grass Carp Reovirus GCRV propagation amount in the cell line is obviously higher than that of the cell lines such as CIK, CO, PSF, FHM and EPC used for separating GCRV, cell pathology time is fast, and the cell line can better used in the researches of separation and breeding of Grass Carp Reovirus and grass carp hemorrhagic disease vaccine.
Owner:广州普麟生物制品有限公司 +1

Drying method for swim bladder

The invention relates to a drying method for a swim bladder. The fresh swim bladder is shorn to remove blood vessels and mucosae and then is washed, and milk is added for reduced pressure drying. The prepared swim bladder has little fishy smell during oral administration and effective ingredients are easily decocted out.
Owner:JINAN KANGZHONG PHARMA TECH DEV

Chinese medicinal composition for treating oligospermia and asthenospermia

The invention relates to a Chinese medicinal composition, in particular to a Chinese medicinal composition for treating oligospermia and asthenospermia. A Chinese medicinal preparation is prepared from radix rehmanniae Preparata, fructus Corni, fructus Lycii, semen Allii Tuberosi, cornu Cervi Degelatinatum, placenta Hominis, herba Epimedii, semen Cuscutae, swim bladder, radix astragali Preparata,radix Angelicae sinensis, radix Salviae Miltiorrhizae, herba cistanches, radix Morindae officinalis, Hirudo, and radix Glycyrrhizae Preparata. The Chinese medicinal composition of the invention can effectively improve sperm quality and sperm motility, remarkably improve sperm survival rate, cure oligozoospermia and asthenospermia, has no toxic and side effects, and further improves the cure rate of infertility. Laboratory examination can effectively reduce the rate of sperm deformity, increase the number of sperm and improve sperm motility. The preparation method of the invention has the advantages of simple operation and low cost.
Owner:北京市平谷区中医医院

Fish data statistical analysis system

The invention discloses a fish data statistical analysis system, and relates to the technical field of sonar. The system comprises an unmanned ship, the unmanned ship serves as a water surface platform of system equipment and can carry a detection sonar to adapt to different use environments in a fixed-point or sailing mode, the unmanned ship is provided with the detection sonar and a wireless transceiver, a signal input port of the wireless transceiver is connected with a wireless remote controller through a radio signal, the remote control distance of the wireless remote controller is 200-2000 meters, and a signal output port of the wireless transceiver is connected with a terminal machine through radio signals. The system is a new method and a new technology for detecting and counting swim bladder fishes cultured in inland fishponds, lakes and offshore purse seines, adopts a high-frequency single-beam sonar technology different from multiple beams and a swim bladder sonar technologydifferent from image recognition, and identifies target objects by using the significant difference between the sonar characteristics of air in the swimming bladder and other objects in the water body.
Owner:中联智科高新技术有限公司

Odontobutisobscura temperature-control flowing-water hatching method

InactiveCN103202251ASolve technical problems that are prone to mildewReduce incubation timeClimate change adaptationPisciculture and aquariaEmbryoSwim bladder
The invention discloses an odontobutisobscura temperature-control flowing-water hatching method, and belongs to the technical field of fish-egg hatching. The method includes: fertilized eggs of the odontobutisobscura are obtained by means of an artificial fertilization method or a natural spawning method, the fertilized eggs of the odontobutisobscura obtained by means of the artificial fertilization method are unsticked, and the fertilized eggs of the odontobutisobscura obtained by means of the natural spawning method are fertilized eggmass which are delivered naturally by the odontobutisobscura and directly detached from an attachment by using a tool; a small amount of the fertilized eggs of the odontobutisobscura are extracted to be observed under a microscope to have growth periods of the fertilized eggs determined, a still water-changed method or a flowing water aeration method are adopted to hatch early embryo of archenteron, an up-flowing-water hatch method is adopted to hatch late embryo of the archenteron till the fertilized eggs detached from the attachment to hatch odontobutisobscura larva fishes; the odontobutisobscura larva fishes are collected prior to water operation in a seedling box made of silk cloth; and the larva fishes are introduced to a larva fish breeding pond after bladders appear on the larva fishes and summer flower seedings of the odontobutisobscura are obtained. By the temperature-control and the water-hatching method, the technical problem of easy mildew rot of the fertilized eggs of the odontobutis is solved, time for hatching is shortened, and hatching rate of the fertilized eggs is improved.
Owner:CHANGSHU INSTITUTE OF TECHNOLOGY

Preparation method for fragrance flavor seafood seasoning

The invention relates to a preparation method for fragrance flavor seafood seasoning. The seasoning is prepared by implementing the following steps: taking dried swim bladder as a raw material; after washing and smashing, soaking the swim bladder, processing with ultrasonic waves and adding water to obtain swim bladder seriflux; adding papayotin into the seriflux for enzymolysis; killing enzyme; adding activated carbon for carbon removal and filtering the mixture to obtain enzymolysis filter liquid; adding water into a reactor filled with ginger powder, reducing sugar, vitamin B1 and five spice powder, heating, extracting, cooling and performing centrifugal filtering to obtain flavor liquid; mixing the enzymolysis filter liquid with the flavor liquid first and adding gourmet powder, salt, Disodium 5'-ribonucleotide and potassium sorbate for blending to obtain seasoning liquid; packaging the seasoning liquid into different bottles to obtain liquid state flavor seafood seasoning finished products or performing spray drying on the seasoning liquid to obtain powdery fragrance flavor seafood seasoning. The preparation method provided by the invention is reasonable in technology, controllable in operation, scientific in sorting and short in preparation time; the seasoning prepared by the preparation method is rich in spiced flavor, natural in seafood taste, intense in fragrance, rich in nutrition and easy to digest and absorb by human body.
Owner:威海市桢昊生物技术有限公司

Extraction and preparation methods of swim bladder collagen oligopeptide

The invention discloses extraction and preparation methods of a swim bladder collagen oligopeptide. The preparation method comprises the following specific steps: cleaning is conducted, specifically,a swim bladder is selected, cleaned, and crushed into small blocks, then a sodium hydroxide solution is added for soaking, washing is conducted with water till neutrality is achieved, then soaking isconducted through 5-10% of a n-butyl alcohol or isopropanol solution, washing is conducted with water till neutrality is achieved, and then slurry uniformizing is conducted for standby application; pretreatment is conducted, specifically, tannic acid is added into uniformized slurry, filtering is conducted, proteases are added under an alkaline environment for enzymolysis, and a mixture passes through a resin column; enzymolysis is conducted, specifically, the pH is adjusted, and 0.1-1.0% of compound proteases are added for enzymolysis; and purification is conducted, specifically, purificationcomprises membrane filtration, nanofiltration, concentration, sterilization and spray drying. According to the extraction and preparation methods, an extraction process is simple while the fishlike smell is effectively removed, and the swim bladder collagen oligopeptide is high in yield and good in quality.
Owner:福州海锐黎思生物科技有限责任公司

Unmanned underwater vehicle folding swim bladder deepwater floating-upward test device and method

ActiveCN106644388AEffective simulationPressure decreases linearlyHydrodynamic testingExhaust valveGas cylinder
The present invention discloses an unmanned underwater vehicle folding swim bladder deepwater floating-upward test device and method. The device comprises a deepwater environmental simulation pot, a pressurization gas bottle and an external test control device. The deepwater environmental simulation pot is provided with an inlet valve, a vent valve, an internal observation device and a pressure sensor, the inlet valve and the vent valve are both solenoid valves and the internal observation device, the pressure sensor, the inlet valve and the vent valve are electrically connected with the external test control device. The unmanned underwater vehicle folding swim bladder deepwater floating-upward test device and method employ the deepwater environment simulation pot pressuring mode to effectively simulate the deepwater environment and provide a research means for the development of the process research in the deepwater environment of a fairing and the swim bladder; the unmanned underwater vehicle folding swim bladder deepwater floating-upward test device and method employ the mode of the combination control of the pressure sensor and the vent valve to allow the pressure in the pot to be reduced in the linear mode and effectively simulate the water pressure changing environment of the deepwater floating-upward process so as to provide a simulation means for the deepwater floating-upward exhaust process of the swim bladder; and moreover, the internal observation device is arranged in the deepwater environment simulation pot to allow the deepwater floating-upward research to be visualized and quantified.
Owner:GENERAL ENG RES INST CHINA ACAD OF ENG PHYSICS

Air supplement device used for settleable fish-culturing net cage

The invention provides an air supplement device used for a settleable fish-culturing net cage. The air supplement device comprises an air supplement cover located in the interior of a settleable net cage, an air supplement pipe, an air supplement hose, a bait feeding pipe and a bait feeding hose, wherein the air supplement cover is of an umbrella shape or a bell shape; the lower end of the air supplement pipe is positioned in the interior of the air supplement cover; the upper end of the air supplement pipe is connected with the lower end of the air supplement hose; the upper end of the air supplement hose is connected with an inflation pump arranged on a working platform on water surface; air supplied by the inflation pump is filled into the air supplement cover through the air supplementhose and the air supplement pipe; the lower end of the bait feeding pipe is connected with the upper part of the air supplement cover; the upper end of the bait feeding pipe is connected with the bait feeding hose; the upper end of the bait feeding hose is located above the water surface; the lower end of the bait feeding hose is connected with the bait feeding pipe; and sinkable feed particles added from the upper end of the bait feeding hose pass through the bait feeding hose, successively enter the bait feeding pipe and the air supplement cover, and fall into water located below the air supplement cover. The air supplement device provided by the invention can supplement lost air in a swim bladder for certain fish needing direction suction of air during long-term sink-cage culturing; and in order to tame cultured fish to contact air in the air supplement cover, the bait feeding pipe can be used to add the sinkable feed particles into the air supplement cover.
Owner:山东万泽丰海洋开发集团有限公司
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