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35 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.

Living fish underwater feature database construction method and system, and medium

The invention discloses a method and system for constructing a living fish underwater feature database and a medium, and the method comprises the steps: collecting original fish information through a preset frequency, carrying out the three-dimensional point cloud reconstruction of a second fish image obtained after preprocessing, and extracting the static phenotypic parameters, such as the scale arrangement features and fin ray morphological features, of the surface of a fish body; body surface texture reflection characteristics are obtained through multispectral analysis; meanwhile, associating time domain features of the second fish image and the second acoustic signal, extracting dynamic behavior features such as a motion trail and swimming bladder vibration frequency, and establishing a feature coding library containing typical behavior patterns; a mapping relation network of different disease types, body surface lesion area spatial distribution and behavior abnormal modes is constructed based on the features, and a feature parameter conversion relation is established; finally, various characteristic parameters are stored in a structured mode, a multi-dimensional characteristic database is formed, multi-dimensional correlation analysis of static phenotypes and dynamic behaviors of fishes is achieved, and the accuracy of disease diagnosis and cross-species characteristic migration is improved.
Owner:INST OF AGRI QUALITY STANDARDS & TESTING TECH FUJIAN ACAD OF AGRI SCI +1

Swim bladder-based bioactive patch for rotator cuff tendon repair and preparation method of swim bladder-based bioactive patch

The invention provides a swim bladder-based bioactive patch for rotator cuff tendon repair and a preparation method thereof, and relates to the technical field of biological materials.The swim bladder-based bioactive patch is composed of a swim bladder substrate and a metal-phenol toughening network component, has good tensile strength and biological activity and can be used for repairing rotator cuff tendons. The compound can support cell adhesion and proliferation, stimulate differentiation and phenotype maintenance of various cells derived from tendon-bone tissue, and is expected to be used for repairing rotator cuff tendon injury and promoting tendon-bone healing. Besides, the invention provides a preparation method of the swim bladder-based rotator cuff patch, a special microstructure of directionally arranged nano-matrix fibers is reserved, and a metal-phenol network further plays roles in toughening the patch and enhancing the biological activity of the material. Particularly, the metal-network has an active oxygen free radical response function, excessive free radicals at the shoulder joint part can be removed, and metal ions are released, so that the patch has the effects of resisting bacteria, resisting inflammation, resisting oxidation and improving healing.
Owner:AFFILIATED HOSPITAL OF NANTONG UNIV

Refrigeration equipment and refrigeration method convenient for taking swimming bladder oligopeptide

The invention provides refrigeration equipment convenient for taking swimming bladder oligopeptide and a refrigeration method, belongs to the technical field of refrigeration equipment, and solves the technical problem that the existing refrigeration equipment cannot perform sealed refrigeration and accurate quantitative taking on swimming bladder oligopeptide. A refrigeration device facilitating taking of swimming bladder oligopeptide comprises a device body, supporting legs fixedly connected to the bottom end of the device body and an observation window connected to the surface of the device body in an embedded mode, and a material storage inner barrel is fixedly installed in the device body. According to the storage device, the baffle is arranged at the top of the storage inner barrel, and the sealing groove is formed in the rotating barrel to seal the bottom of the storage inner barrel, so that external air and moisture in the storage inner barrel during refrigeration are effectively isolated, and the preservation effect is extremely good; and the rotating cylinder drives the quantitative groove to take the swimming bladder oligopeptide from the bottom of the storage inner barrel, the storage inner barrel does not need to be opened on a large scale in the whole taking process, cold air loss is reduced to the maximum extent, the internal temperature is kept stable, and the energy-saving effect is good.
Owner:FUQING BRANCH OF FUJIAN NORMAL UNIV

A biomaterial with hydrophilicity and transdermal absorption promoting property, and a preparation method and application thereof

The application discloses a biomaterial with hydrophilicity and transdermal absorption promotion and a preparation method and application thereof, and comprises the following components in mass percentage: 95% of swim bladder extract and 5% of transdermal absorption promotion polypeptide, wherein the swim bladder extract is a hydrophilic substance containing collagen, elastin and glycosaminoglycan and is obtained by extracting swim bladder as raw material; and the amino acid sequence of the transdermal absorption promotion polypeptide is GGPAAVSSQ or AAVPPLTTC. The swim bladder extract rich in collagen, elastin and glycosaminoglycan is used as a hydrophilic substance, and is compounded with the transdermal absorption promotion polypeptide with a specific amino acid sequence, so that the double functions of hydrophilicity and transdermal absorption promotion are obtained, and the biomaterial is better applied to the field of cosmetics.
Owner:SU ZHOU JUN XING SHENG WU KE JI YOU XIAN GONG SI

Method for extracting fish oil from viscera of freshwater fish

The invention discloses a method for extracting fish oil from viscera of freshwater fish, which comprises the following steps: removing gall bladder, swim bladder and intestinal digests in the viscera of freshwater fish, cleaning, draining, and crushing to obtain viscera paste; putting the minced viscera into deionized water, carrying out microwave treatment, then adjusting the pH value to 6.5-7.5, and then adding neutral protease and an antioxidant to carry out enzymolysis reaction, so as to obtain an enzymolysis mixture; and performing centrifugal layering on the enzymolysis mixture, collecting a fish oil layer, and performing distillation purification to obtain the fish oil. According to the extraction method disclosed by the invention, a microwave-assisted enzymolysis technology is adopted to accelerate a reaction process, an oil-soluble natural antioxidant in-situ antioxidant technology is combined to inhibit fat oxidation, and the fish oil is purified by a molecular distillation technology, so that the product quality is improved; the technology can improve the fish oil extraction efficiency, reduce the production cost, reduce the environmental pollution, and ensure the high quality and high purity of the fish oil.
Owner:WUHAN LIANGZIHU AQUATIC PROCESSING CO LTD

Sterilizing and drying device and all-in-one machine

The utility model provides a sterilizing and drying device and an all-in-one machine. The sterilizing and drying device comprises an outer box body with a cavity and a drying unit arranged in an inner cavity of the outer box body. The drying unit comprises a drying box body, a plurality of supporting mechanisms arranged in the drying box body in a pivoted mode and a driving part connected to the drying box body, the driving part is used for driving the supporting mechanisms to rotate, the supporting mechanisms are provided with a plurality of inserting parts, and the inserting parts are sleeved with objects to be dried. A first blocking plate and a second blocking plate are arranged between the drying box body and the outer box body, and the inner cavity is divided into an air inlet cavity and an air outlet cavity by the first blocking plate, the second blocking plate, the drying box body and the outer box body. An air inlet is formed in the top of the outer box body and communicates with the air inlet cavity, and an air outlet is formed in the side portion of the outer box body and communicates with the air outlet cavity. A plurality of ultraviolet sterilization lamps are arranged on the inner wall of the drying box. According to the air bladder drying device, air bladders are rapidly and evenly dried, the drying time is greatly shortened, the production efficiency is improved, and the quality difference of the air bladders caused by uneven airing or drying is avoided.
Owner:GUANGDONG GUANZHAN NUTRITION & HEALTH TECHNOLOGY CO LTD

Magnetic-control variable-stiffness robotic fish simulating snorkeling of swim bladder

The invention relates to the technical field of underwater robots, in particular to a magnetic control variable-stiffness robotic fish simulating swimming bladder snorkeling. The magnetic-control variable-stiffness robotic fish comprises a magnetic-control variable-stiffness tail fin module, a demagnetization module, a bionic swimming bladder module and a shell outer covering skin, wherein the shell outer covering skin covers a fish body of the magnetic-control variable-stiffness robotic fish and is used for achieving overall sealing of the robotic fish; the bionic swimming bladder module comprises four bionic swimming bladder units; the magnetic control variable stiffness tail fin module comprises a flexible tail fin, a third electromagnet and a passive tail fin, the demagnetization module comprises a power source, a DC-AC converter and a coil, variable stiffness and flexible swing of the tail fin can be effectively achieved, and compared with a gravity center adjusting mechanism, the swimming bladder snorkeling simulating mechanism has the advantages of being small in size, light in weight and the like; good movement performance is realized.
Owner:JIANGSU UNIV

Swim bladder source self-expansion type artificial intervention heart valve

The invention discloses a swim bladder source self-expansion type artificial intervention heart valve. The swim bladder source self-expansion type artificial intervention heart valve comprises a valve frame, a valve leaflet and a skirt edge. The valve frame is annular and is of a net-shaped structure, one end of the valve frame is cylindrical, the other end of the valve frame is trumpet-shaped, and thorn-shaped protrusions are arranged on the periphery, corresponding to the cylindrical part, of the valve frame; the valve leaflet and the skirt edge are sewn on the valve frame; the self-anchoring effect of the valve can be achieved by limiting the structure of the valve frame, specifically arranging the thorn-shaped protrusions on the peripheral surface of the valve frame, the valve is prevented from shifting or slipping when the valve is released in the TAVR operation, in addition, the valve leaflet and the skirt edge are made of swimming bladder source materials and are subjected to specific crosslinking treatment, and the valve leaflet and the skirt edge are made of the swimming bladder source materials. And the valve has better mechanical and anti-calcification performance, so that the service life of the valve is better prolonged.
Owner:FUWAI HOSPITAL CHINESE ACAD OF MEDICAL SCI & PEKING UNION MEDICAL COLLEGE

Fish size calculation device and method, non-transitory computer readable medium

Provided is a fish size calculation device and method, and a non-transitory computer-readable medium. The target size calculation device includes: a transceiver (22) that transmits a transmission wave to an underwater target and generates an echo signal based on reflection of the transmission wave on the underwater target; a fish tracking unit (25) that tracks a fish among underwater targets over time based on the echo signal due to the different transmission waves; an ultrasonic incidence angle calculation unit (26) that calculates an ultrasonic incidence angle of the transmission wave on the tracked fish for each position of the tracked fish based on the echo signal; a distance calculation unit (27) that calculates a distance between a swim bladder of the tracked fish and a second body part of the tracked fish for each position of the tracked fish based on the echo signal of the tracked fish; and a fish weight calculation unit (30, 901) that calculates a weight of the tracked fish based on the ultrasonic incidence angle and the calculated distance.
Owner:FURUNO ELECTRIC CO LTD

Swim bladder hydrolysate capable of improving male reproductive function as well as preparation method and application of swim bladder hydrolysate

The invention relates to a swimming bladder hydrolysate capable of improving a male reproductive function as well as a preparation method and application thereof, and belongs to the technical field of biology. The invention provides a swimming bladder hydrolysate capable of improving a male reproductive function. The swimming bladder hydrolysate is obtained by performing enzymolysis on sturgeon swimming bladders through trypsin. The total protein content of the swimming bladder hydrolysate is 80%-90%; the amino acid composition of the swimming bladder hydrolysate comprises glycine, proline, glutamic acid, asparaginic acid, arginine, alanine, serine, lysine, threonine, phenylalanine, leucine, isoleucine, valine, histidine, tyrosine and methionine. Researches show that the swim bladder hydrolysate has very strong antioxidant activity, and the swim bladder hydrolysate can effectively relieve matt hair, unstable spirit, reduced exploration behavior, weight loss and male reproductive function damage of model mice caused by exposure of heavy metal cadmium, and has great application prospects.
Owner:JIANGZHONG DIET THERAPY TECH CO LTD +1

Swim bladder drying technology

The invention belongs to the field of food processing, and provides a swim bladder drying technology which comprises the following steps: pretreating a swim bladder raw material, namely cleaning and removing fishy smell, flatly laying a single layer of the pretreated swim bladder on a material tray for loading, sealing drying equipment filled with the swim bladder, and performing gas replacement, s4, drying parameters are set, the temperature ranges from 35 DEG C to 40 DEG C, the humidity ranges from 15% to 20%, the gas flow rate ranges from 1 m / s to 1.5 m / s, drying is carried out under the drying parameters, the drying parameters are monitored in real time, classification is carried out according to the size of the swimming bladder, and a fish maw finished product is obtained; according to the method, the uniformity and stability of the quality of the swimming bladders in the drying process are effectively guaranteed through the complete process including cleaning and fishy smell removal, single-layer tiling and charging, low-oxygen environment gas replacement, drying parameter control of specific temperature, humidity and air speed, real-time moisture monitoring to the end point, natural cooling and grading.
Owner:GUANGDONG GUANZHAN NUTRITION & HEALTH TECHNOLOGY CO LTD

Swim bladder collagen antioxidant polypeptide as well as screening method and antioxidant performance testing method thereof

The invention relates to the technical field of biochemistry, in particular to a swimming bladder collagen antioxidant polypeptide, a screening method of the swimming bladder collagen antioxidant polypeptide and an antioxidant performance testing method of the swimming bladder collagen antioxidant polypeptide. The swimming bladder collagen antioxidant polypeptide is obtained through the screening method of the swimming bladder collagen antioxidant polypeptide, the screening efficiency is improved, the antioxidant activity of the screened polypeptide sequence is ensured, and meanwhile, the method capable of accurately testing the antioxidant performance of the swimming bladder collagen polypeptide is provided.
Owner:GUANGDONG GUANZHAN NUTRITION & HEALTH TECHNOLOGY CO LTD +1

A method for detecting the swim bladder of yellow croaker by fingerprint spectrum

The application discloses a method for detecting yellow croaker swim bladder by fingerprint spectrum, comprising the following steps: step 1, preparation of yellow croaker swim bladder sample solution; step 2, precise quantitative sample solution is sucked and injected into a liquid chromatograph, and a chromatogram is recorded; step 3, the yellow croaker swim bladder fingerprint spectrum obtained in step 2 is introduced into a traditional Chinese medicine chromatographic fingerprint spectrum similarity evaluation system, common peaks existing in chromatograms of different batches of yellow croaker swim bladder sample are selected as common peaks, and an average value calculation method is used to generate a control fingerprint spectrum of the yellow croaker swim bladder; step 4, typical common peaks in the yellow croaker swim bladder fingerprint spectrum are separated and purified by liquid phase preparation, and representative polypeptide components are obtained; and step 5, the representative polypeptide is analyzed based on liquid chromatography-mass spectrometry, and according to mass spectrometry fragmentation characteristics and fragment ion information, the sample is characterized by comparing with a database. The yellow croaker swim bladder fingerprint spectrum can comprehensively and objectively characterize the quality of the yellow croaker swim bladder, and can be used for identifying the authenticity of the swim bladder.
Owner:MARINE BIOMEDICAL RES INST OF QINGDAO CO LTD +1

Underwater navigation device with bionic swimming bladder and motion control algorithm

The invention discloses an underwater navigation device with a bionic swimming bladder and a motion control algorithm, the underwater navigation device with the bionic swimming bladder comprises a shell, a first flexible film, a second flexible film, a push-pull rod driving mechanism and a tail fin propelling mechanism, the shell comprises a head part, a tail part and a main body connecting the head part and the tail part, the first flexible film is arranged between the head and the main body, the second flexible film covers the notch of the main body, and the first flexible film, the main body and the second flexible film define a swimming bladder chamber; the volume change of the swimming bladder chamber caused by the deformation of the first flexible film is greater than the volume change of the swimming bladder chamber caused by the deformation of the second flexible film; the push-pull rod driving mechanism is used for driving the first flexible film to deform, and the tail fin propelling mechanism is arranged at the tail; the tail fin driving mechanism is arranged in the shell and used for driving the bionic tail fin to swing. According to the technical scheme provided by the invention, the technical problems of long buoyancy regulation response time and high energy consumption of an underwater navigation device with a bionic swimming bladder can be solved.
Owner:PEKING UNIV

Processing method of red-mouth swim bladder

The invention relates to swimming bladders, in particular to a processing method of red-mouth swimming bladders, which is realized according to the following steps: cutting dry red-mouth swimming bladders into small square blocks with the length of 1-2cm, and taking quantitative cut clean swimming bladder rubber blocks for later use; taking an auxiliary material talcum powder or clam powder, putting the auxiliary material talcum powder or clam powder into a stir-frying container, heating to a specified temperature, adding the clean swimming bladder blocks, uniformly stir-frying for a specified time, quickly taking out the swimming bladder blocks, screening out the auxiliary material, and cooling; the dosage of the auxiliary materials is appropriate when the swim bladder can be completely buried and the rest part is left during frying. Wherein the auxiliary materials are fried at the temperature of 160-170 DEG C for 1.5 minutes. After stir-frying with clam meal or talcum powder, the finished product has no significant difference in character, puffing degree and water-soluble extract, and the male swim bladder and the female swim bladder have significant difference due to the difference in meat thickness. The technological parameters are stable and feasible, repeatability is achieved, and the processing technology end point error caused by subjective judgment is avoided.
Owner:JINAN UNIVERSITY

Food ingredient partition refrigerated cabinet for fish swim bladder oligopeptide solid beverage and taking method

The application provides a food ingredient partition refrigeration cabinet for fish mucus oligopeptide solid beverage and a taking method, and belongs to the technical field of refrigeration cabinets. The technical problem that existing refrigeration cabinets cannot distinguish and regulate the refrigeration temperature of food types and characteristics to prevent cross contamination is solved. A food ingredient partition refrigeration cabinet for fish mucus oligopeptide solid beverage comprises a cabinet body and a cavity formed in the cabinet body. A refrigeration partition frame is rotationally connected in the cavity. The refrigeration partition frame is in a cylindrical shape, and a plurality of temperature control cavities are formed in the refrigeration partition frame. A refrigeration box is slidably connected in each temperature control cavity. A pushing assembly is arranged in the refrigeration partition frame to control the unfolding of the refrigeration box. A folding and sealing box door is arranged at the box opening of each refrigeration box. The application has the advantages of adjusting the temperature of each temperature control cavity to adapt to the suitable refrigeration temperature of various food ingredients and better improve the refrigeration effect.
Owner:FUQING BRANCH OF FUJIAN NORMAL UNIV

Artificial propagation method of Sichuan parabramis pekinensis

The invention discloses an artificial breeding method of Sichuan parabramis pekinensis. The method specifically comprises the following steps: performing flushing stimulation on a Sichuan parabramis pekinensis parent one month before breeding; the water temperature of the spawning pond is set to be stabilized at 25 DEG C or above, and the spawning pond is covered with a dense mesh; selecting a female parent with an obvious ovary outline and a soft and elastic abdomen as a female parent, and selecting a male parent with milk white thick semen flowing out by slightly pressing the abdomen as a male parent; the selected parents are subjected to spawning induction medicine injection, and domperidone DOM and luteinizing hormone LRH-A2 are selected as the spawning induction medicine; respectively catching male and female parents when the parents are induced to oestrus peak, collecting eggs and seminal fluid, mixing, and adding water for fertilization; after waist points (swim bladders) are formed, fry rearing is conducted. The breeding method provided by the invention can significantly improve the breeding difficulty of Sichuan parabramis pekinensis and improve the breeding efficiency, and has an application prospect in the field of breeding of Sichuan parabramis pekinensis.
Owner:FISHERIES INST SICHUAN ACADEMY OF AGRI SCI

Swim bladder cleaning process capable of improving quality

The invention belongs to the technical field of aquatic food products, and particularly relates to a quality-improving swim bladder cleaning process which comprises the following steps: S1, selecting complete fresh swim bladders without lesion, tearing off surface fat layers, and flushing away surface blood and mucus with clear water; s2, soaking the swim bladder treated in the step S1 in a first cleaning solution for 1 time, wherein the temperature of the first cleaning solution in the soaking process is controlled within the range of the temperature 1; s3, soaking the swim bladder treated in the step S2 in a second cleaning solution for a time 2, wherein the temperature of the second cleaning solution in the soaking process is controlled within the range of the temperature 2; s4, the swim bladders treated in the step S3 are washed with clear water until the pH of washing liquid is 6.0-7.0, water is drained, and dried fish maw is obtained.The washing technology can efficiently wash impurities on the surfaces of the swim bladders, and the phenomena of dark color, fishy smell, oil rancidity and the like caused by extravasated blood and grease oxidation are inhibited.
Owner:GUANGDONG GUANZHAN NUTRITION & HEALTH TECHNOLOGY CO LTD

Underwater detection device

ActiveCN115771600BOpen water surveyUnderwater vesselsPropellerBladder control
The present invention discloses an underwater detection device, characterized by comprising a housing, propellers disposed on both sides of the housing, and multiple bionic fish swim bladders disposed on the top surface of the housing; the housing having an internal accommodating chamber, a fish bladder control device disposed in the middle of the accommodating chamber, the fish bladder control device being connected to the bionic fish swim bladder and used to control the size of the bionic fish swim bladder; and drive control devices disposed on both sides of the accommodating chamber, each connected to the propellers. The present invention has the advantages of convenient diving and surfacing, and flexible operation.
Owner:WENZHOU UNIV

Method for extracting and separating unsaturated fatty acid in body of belly-expanding hippocampus

The invention provides a method for extracting and separating unsaturated fatty acid in a hippocampus japonicus body, and belongs to the technical field of biological separation. The method comprises the following steps: grinding a hippocampus japonicus sample, soaking with 75% ethanol, performing reflux extraction on the soaked sample for multiple times with 75% ethanol to obtain an extracting solution, filtering the extracting solution, collecting filtrate, concentrating and recovering to obtain a concentrated extract, dissolving the concentrated extract with ethanol, and performing freeze-drying to obtain the hippocampus japonicus freeze-dried powder. The preparation method comprises the following steps: loading on a silica gel column by a dry method, carrying out gradient elution on the silica gel column by adopting a mixed solvent of normal hexane, ethyl acetate and water to obtain a plurality of eluted parts, and further carrying out reverse silica gel column chromatography purification on the part with high content through thin-layer chromatographic analysis to obtain the unsaturated fatty acid. The EPA-containing unsaturated fatty acid is obtained through multiple reflux extraction of 75% ethanol and repeated purification of a silica gel column, and the method is simple to operate, low in cost and small in pollution, and can efficiently obtain the high-purity EPA-containing unsaturated fatty acid.
Owner:LIAONING ACAD OF MARINE FISHERIES SCI (DALIAN INST OF BIOTECHNOLOGY LIAONING ACAD OF AGRI SCI LIAONING MARINE ENVIRONMENT MONITORING STATION)

Fishing lures with an internal hollow body for absorbing and / or releasing attractant and for simulating a swim bladder

UndeterminedDE202026001888U1BaitSwim bladderMechanical engineering
Main claim: Fishing lure (1), in particular artificial lure made of elastic material such as rubber, silicone or soft plastic or of plastic or hard material, characterized in that at least one hollow body (2), in particular in the form of a cylinder or a chamber, is arranged inside the lure body, and that the hollow body (2) is connected to the outside of the lure via at least one channel (3). Dependent claims
Owner:TROST NIKOLAJ

Application of swimming bladder polysaccharide in preparation of product for relieving colitis

The invention discloses application of swimming bladder polysaccharide in preparation of a product for relieving colitis, and belongs to the technical field of biological medicine preparation. The swim bladder polysaccharide provided by the invention has no toxic or side effect on animals. By adopting the swim bladder polysaccharide provided by the invention, the DAI index of a mouse with DSS-induced colitis can be remarkably reduced, and weight loss and colon shortening can be relieved. The swim bladder polysaccharide provided by the invention can be used for relieving crypt atrophy, epithelial cell destruction, goblet cell reduction and massive inrush of inflammatory cells caused by DSS, and obviously reducing histological scores. Compared with mice in a DSS group, proinflammatory factors IL-1beta, IL-6 and TNF-alpha in colons of mice in a swim bladder polysaccharide intervention group are remarkably reduced, and an anti-inflammatory factor IL-10 is remarkably increased.
Owner:DALIAN POLYTECHNIC UNIVERSITY

Basa fish swimming bladder polypeptide as well as preparation method and application thereof

The invention discloses a Basa fish swimming bladder polypeptide as well as a preparation method and application thereof. The Basa fish swimming bladder polypeptide contains an amino acid sequence as shown in SEQ ID NO: 1. The Basa fish swimming bladder polypeptide is extracted from swimming bladders of Basa fish, and in animal experiments, compared with diabetic mice not taking the Basa fish swimming bladder polypeptide, the diabetic mice taking the Basa fish swimming bladder polypeptide shows good sugar tolerance, and the organism has good regulation ability on glucose. The preparation method provided by the invention comprises the following steps: carrying out enzymolysis on homogenate of Basa fish swim bladder by adopting an alkaline protease and animal protease A3 double-enzymolysis mode, and then carrying out ultrafiltration on enzymatic hydrolysate to obtain the Basa fish swim bladder polypeptide. Compared with other dual-enzymolysis matching, the dual-enzymolysis matching of the alkaline protease and the animal protease A3 is adopted, so that the swim bladder of Basa fish can be better subjected to enzymolysis, and the Basa fish swim bladder polypeptide with a better blood glucose reducing effect is obtained.
Owner:THIRD INSTITUTE OF OCEANOGRAPHY STATE OCEANI C ADMINISTRATION

Device for tracking, position prediction and rescue of victims in an aquatic medium

The invention relates to a device for tracking, position prediction and rescue of victims in an aquatic medium, comprising a physical dummy, which mimics a shipwreck victim and comprises at least one swim bladder for ensuring variable buoyancy at different depths; a digital twin, consisting of a configurable expert system, which controls and operates the cycle life of the dummy in real time, from entry into the water up to rescue, replicating the behaviour of a shipwrecked person; and a communications system, which, when the dummy is submerged, releases to the surface multiple capsules that transmit to the digital twin the GPS position of the dummy and the necessary data to identify the dummy.
Owner:DIAZ ESCORIHUELA MIGUEL

A rigid-flexible coupled bionic robotic fish that mimics fish snorkeling

The present invention discloses a rigid-flexible coupling bionic robotic fish that mimics fish swim bladder snorkeling, relating to the field of bionic technology. The invention comprises an SMA flexible tail fin, an electromagnetically driven pectoral fin, a fish swim bladder mimicking mechanism, a MOS transistor, and a power supply. The SMA flexible tail fin is used to achieve variable stiffness of the bionic robotic fish's tail fin; the fish swim bladder mimicking mechanism is used to enable the bionic robotic fish to snorkel; the electromagnetically driven pectoral fin is used to enable the bionic robotic fish to move straight and turn; the MOS transistor is used as an electronic switch to control the on and off of each branch circuit; and the power supply is used to supply energy to the bionic robotic fish. The present invention can effectively achieve variable stiffness and flexible swinging of the bionic robotic fish's tail fin, effectively solving the problem of slow cooling of SMA wire. The electromagnetically driven pectoral fin improves the maneuverability of the BCF robotic fish while also reducing the complexity of the mechanism. The fish swim bladder mimicking snorkeling mechanism has the advantages of small size and light weight compared to the center of gravity adjustment mechanism. In summary, the bionic robotic fish has good motion performance.
Owner:JIANGSU UNIV

A fish swim bladder chondroitin-sulfate dermatan sulfate hybrid chain and a preparation method and application thereof

The application discloses a fish swim bladder chondroitin sulfate-Dermatan sulfate hybrid chain and a preparation method and application thereof, and relates to the technical field of medicines. The fish swim bladder chondroitin sulfate (CS) / dermatan sulfate (DS) hybrid chain with anticoagulant activity is composed of iduronic acid, N-acetylgalactosamine, glucuronic acid and N-acetylglucosamine, and the CS / DS hybrid chain is derived from a fish swim bladder, is easily soluble in water, has strong anticoagulant activity, and can be used for preparing medicines for preventing and / or treating thrombotic cardiovascular diseases.
Owner:GUANGXI UNIV OF CHINESE MEDICINE

Use of fish swim bladder mucopolysaccharide in preparation of drug for liver injury

PCT designated stageWO2026020695A1Organic active ingredientsDigestive systemDietary supplementSwim bladder
Use of a fish swim bladder mucopolysaccharide in the preparation of a drug or dietary supplement for ameliorating liver injury. The fish swim bladder mucopolysaccharide can ameliorate pathological damages such as arsenic-induced hepatic sinusoid and central venous congestion, cytoplasmic vacuolization of liver cells, and inflammatory infiltration, can ameliorate arsenic-induced liver cell damage and necrosis, and liver tissue oxidative imbalance, and can also significantly up-regulate the relative expression level of antioxidation-related genes in liver tissues, down-regulate the relative expression level of detoxification-related genes, and alleviate arsenic-induced liver damage.
Owner:GUANGDONG OCEAN UNIVERSITY

Food ingredient partition refrigerated cabinet for swim bladder oligopeptide solid beverage and taking method of food ingredient partition refrigerated cabinet for swim bladder oligopeptide solid beverage

The invention provides a food ingredient partition refrigerated cabinet for a swimming bladder oligopeptide solid beverage and a taking method, belongs to the technical field of refrigerated cabinets, and solves the technical problems that in the prior art, refrigeration temperatures matched with food types cannot be distinguished and regulated according to the food types and characteristics, and cross contamination cannot be prevented. A food ingredient zoning refrigerated cabinet for swimming bladder oligopeptide solid beverages comprises a cabinet body and a cavity formed in the cabinet body, a refrigeration zoning frame is rotationally connected into the cavity and is cylindrical, a plurality of temperature control cavities are formed in the refrigeration zoning frame, a refrigeration box is slidably connected into each temperature control cavity, and the temperature control cavities are communicated with the refrigeration box. A pushing assembly for controlling the refrigeration boxes to be unfolded is arranged in the refrigeration partition frame, and a folding sealing box door is arranged at a box opening of each refrigeration box. The food ingredient cold storage device has the advantages that the temperature of each temperature control chamber is adjusted so as to adapt to the appropriate cold storage temperature of various food ingredients, and the cold storage effect is better improved.
Owner:FUQING BRANCH OF FUJIAN NORMAL UNIV

Dissecting, viscera removing and conveying device for aquatic product processing and recycling and processing method thereof

The invention discloses a dissecting and viscera-removing conveying device for aquatic product processing and a recycling processing method thereof, and relates to the technical field of aquatic product processing, the dissecting and viscera-removing conveying device comprises two supporting plates, the side walls of the opposite ends of the two supporting plates are symmetrically and rotationally connected with two transmission rollers, and the outer walls of the two transmission rollers are rotationally connected with the same conveying belt; and the side wall of one supporting plate is fixedly connected with a conveying motor. Fish roes and swim bladders floating on the water surface can be collected in the screening shell, then the screening shell is driven by the vibration motor to vibrate, the fish roes are screened to the bottom of the screening shell, screening of the fish roes and the swim bladders is completed, and the situation that follow-up workers need to manually pick out the swim bladders and the fish roes in the conveying shell, and consequently the conveying efficiency is reduced is avoided. And meanwhile, undamaged swimming bladders can be blown to the position above the bearing plate, the damaged swimming bladders are left above the filtering plate, and workers can directly take out the damaged swimming bladders and the undamaged swimming bladders conveniently for classified placement.
Owner:SUQIAN COLLEGE