10 results about "Fish Proteins" patented technology

This application belongs to the field of fish protein gelatin preparation technology, specifically relating to a method for preparing high-purity fish protein gelatin and its deodorization process. Pretreated fish scales are soaked in a citric acid solution to remove calcium. The soaked fish scales are then added to water and sheared to obtain a fish protein gelatin extract. Solid-liquid separation is performed, followed by drying to obtain high-purity fish protein gelatin. This extract is then dissolved in water with xylose and mixed thoroughly, followed by freeze-drying. The resulting freeze-dried sample undergoes superheated steam-assisted glycosylation. After glycosylation, the glycosylated fish protein gelatin is dissolved to obtain deodorized fish protein gelatin. This invention achieves efficient extraction and deep deodorization of fish protein gelatin through an integrated process of low-temperature high-speed shearing and superheated steam-assisted glycosylation, significantly improving product purity and providing a feasible technical foundation for the industrial application of fish protein gelatin in high-end fields such as food, pharmaceuticals, and cosmetics.

The application belongs to the biological field, and specifically discloses a fish protein fermentation liquid fertilizer rich in dipeptides and small-molecule organic acids and a preparation method. The fish protein liquid fertilizer prepared by the method is rich in active peptides necessary for plant growth and development, including leucine dipeptide, glutamic acid dipeptide and proline dipeptide, and small-molecule organic acids including lactic acid, phenyl lactic acid and gamma-aminobutyric acid. The composition and content of small-molecule metabolites are regulated by controlling the fermentation time, so as to play the regulating function of fish protein leftovers as non-nutritional elements of liquid fertilizer. The application realizes high-value utilization of fishery waste, accurately regulates the content and composition of metabolites of the prepared liquid fertilizer, and the liquid fertilizer can significantly promote the growth of apple trees, improve the soluble solid content and quality of fruits, and has multiple functions of nutrition, soil improvement and stress resistance enhancement.

The application discloses a compound feed for promoting cocoon production of broad loach and a preparation method thereof, and relates to the field of agricultural biotechnology.The compound feed comprises enzymolysis fish protein peptide, calcium-phosphorus-humic acid premix, black soldier fly larva dry powder, soybean sterol-vitamin E compound, corn starch, alfalfa powder, bacillus subtilis, saccharomyces cerevisiae and water.The application adopts enzyme hydrolysis and active bacteria cooperation, calcium-phosphorus-humic acid chelation premix and neutralization regulation, significantly improves the cocoon production, single cocoon egg number and cocoon shell thickness of the broad loach, and obviously improves the hatching rate.The application does not add salt and does not depend on a fermentation process, and the formula is standardized, so the application is suitable for population propagation of artificial breeding of the broad loach.

The present application relates to the technical field of food processing, and particularly relates to a base-induced glycosylated tilapia protein hydrolysate loaded with fat-soluble polyphenols and a preparation method and application thereof. The present application adopts flavor protease with mild action conditions for moderate hydrolysis, and combines with a green, efficient and controllable reaction degree base-induced propylene glycol alginate (PGA) glycosylation strategy to prepare glycosylated tilapia protein hydrolysate, effectively improves the water solubility and emulsifying property of tilapia protein, and develops an oral delivery system of fat-soluble polyphenols such as quercetin by using the glycosylated protein hydrolysate (modified tilapia protein) as a carrier, improves the bioavailability of fat-soluble polyphenols, can be developed as a functional food ingredient to improve the health status of special groups, and promotes the high-value utilization of tilapia protein in protein-based polyphenol functional food ingredients.

The application belongs to the technical field of nanometer hole single molecule detection and biochemistry, and provides a nanometer hole based on zebra fish protein and application thereof in single molecule detection. The zebra fish protein is wild type JAC5 protein, and the nanometer hole based on the wild type JAC5 protein is applied to single molecule detection. Compared with other nanometer hole proteins, the wild type JAC5 protein has significant advantages in cloning expression and purification process, and is suitable for detecting nucleic acid, protein and pathogen, and has wide application scenarios. Compared with the wild type JAC5 protein, the mutant zebra fish protein after amino acid mutation of the wild type JAC5 protein can normally express, enhance structural stability and improve detection performance by eliminating the steric hindrance of the sugar binding region to enhance the affinity, or by introducing positive charges to enhance the electrostatic interaction between the transmembrane region and the phospholipid bilayer membrane.

This invention relates to the field of protein peptide separation technology, and more particularly to a centrifuge device for preparing marine fish protein peptides. It includes a tank and a support frame disposed at the lower part of the tank. The lower sidewall of the tank converges inward to form a funnel shape. A filter cylinder is vertically disposed coaxially within the tank. The filter cylinder is connected to a drive mechanism disposed at the bottom of the tank. An annular limiting seat is horizontally disposed along its circumference on the upper part of the inner wall of the tank. A limiting element abutting against the outer wall of the filter cylinder is disposed on the inner wall of the annular limiting seat. An annular support seat abutting against the inner wall of the tank is disposed on the surface of the annular limiting seat. Its structure is rationally designed and easy to operate. It effectively solves the problem of fish skin and scales floating up and down within the filter cylinder during centrifugation, eliminating the need for a separate cutting process. Fish scales and skin can be separated during centrifugation, and the fish skin can be cut, thereby greatly accelerating the separation speed of fish collagen peptides and solving problems existing in practical use.

A fish protein raw material cleaning device, belonging to the technical field of fish skin cleaning equipment for fish protein production, includes a conveying water tank, a support device, a connecting device, a cleaning nozzle, a connecting hose, a diverting device, and a connecting water pipe. Its features include: several support devices are vertically and evenly distributed in the middle of the upper surface of the conveying water tank; several connecting devices are horizontally and evenly distributed in the front surface of each support device; a cleaning nozzle is inserted at the middle of the front surface of each connecting device; a connecting hose is inserted at the center of the upper surface of each cleaning nozzle; a diverting device is inserted at the center of the other end of the connecting hose; and a connecting water pipe is inserted at the middle of the front end of the diverting device. This allows workers to quickly change the cleaning nozzles at any time, and allows workers to clean a large number of blades at once.

The application discloses a method for strengthening regional ecological resilience and preventing and controlling spring frost damage of trees in the southern Hebei region, and belongs to the technical field of tree cultivation and plant protection. The method specifically comprises the following steps: (1) controlling a UAV to fly according to a conventional flight line density; (2) synchronously performing low-pressure atomization water spraying while the UAV is flying; and (3) spraying a fish protein / seaweed acid solution while or after the low-pressure atomization water spraying. Through the synergistic combination of UAV flight, low-pressure atomization water spraying and functional reagent fish protein / seaweed acid spraying, the method realizes effective prevention and control of spring frost damage of trees, provides core technical support for disaster prevention and reduction and high-quality development of forestry, and helps to build a northern ecological security barrier.

This invention belongs to the field of bioactive protein peptide materials, and provides an animal-derived composite fermented skin-rejuvenating protein peptide and its preparation method. This invention uses bovine collagen and fish protein co-fermentation to prepare a protein peptide core, with an outer coating of an edible gelatin and chondroitin sulfate composite layer. Through a core-shell structure design with cross-linking and solidification by glutamine transaminase, it achieves excellent performance with a small molecule peptide core of 500-1500 Da, a stable coating layer with a coating rate of 80-99%, a glycine-proline-hydroxyproline sequence collagen peptide fragment ratio of 30-60%, and a pH-responsive swelling ratio of 1.5-3.0. This solves the technical problems of poor stability and low bioavailability of traditional protein peptides, and has broad application value in the skin care industry.