9 results about "Prepared fish" patented technology

The invention provides a preparation method of fish gelatin polysaccharide from fish gelatin, which is characterized in that fish maw is subjected to degreasing, proteolysis, alcohol precipitation and column separation to obtain the fish gelatin polysaccharide. According to the application, the crushed cod gelatin is taken as a raw material, the fish gelatin polysaccharide is prepared from the crushed cod gelatin through a specific enzymolysis process in combination with graded purification technologies such as alcohol precipitation, chromatographic column separation and dialysis, glycosaminoglycan in the prepared fish gelatin polysaccharide contains chondroitin sulfate which accounts for 90% of glycosaminoglycan 7, and the repairing effect on the wound of the zebra fish is obvious.

The present invention discloses a fish scale composite hydrogel for drug loading and a preparation method thereof, wherein the method uses high-frequency and low-frequency sound waves to alternately treat fish scales, extracts fish scale collagen and hydroxyapatite by hot pressing and ionic liquid methods, respectively, and then cross-links acrylic acid-modified β-cyclodextrin with peptide calcium chelate to prepare the fish scale composite hydrogel. The present invention utilizes high-frequency and low-frequency sound waves to alternately treat fish scales, and synergistically dissociates the bonding structure of collagen and hydroxyapatite through cavitation effect and mechanical vibration, thereby improving the extraction efficiency while avoiding collagen denaturation; the prepared fish scale composite hydrogel has a "jellyfish" structure: a stable gel core layer structure is formed by a cross-linked network of hydroxyapatite and chitosan coated with β-cyclodextrin; a branched tentacle structure formed by covalently linking acrylic acid-modified β-cyclodextrin and collagen realizes drug gradient controlled release, and the strong adhesion of the tentacles can accurately locate the drug release site, providing innovative solutions for the fields of drug delivery and tissue engineering.

The invention provides high-foamability fish protein glue and a preparation method thereof. The method comprises the following steps: S1, preparing a fish protein glue solution; s2, dissolving Arabic gum in the fish protein glue solution obtained in the step S1; s3, adjusting the pH value of the solution obtained in the step S2, and adding an enzyme for enzymolysis; s4, performing enzyme deactivation on the materials subjected to enzymolysis, and adjusting the pH value again after enzyme deactivation; and S5, freezing the material obtained in the step S4 at low temperature, and freeze-drying to obtain the high-foamability fish protein glue. The preparation process is simple, no pollution is generated in the treatment process, and the fish protein glue has the advantages of being green and environmentally friendly, the foamability of the prepared fish protein glue reaches up to 158.89%, and the foamability stability reaches up to 55.40%.

The application discloses a method for preparing high-stable PUFA fish oil from rainbow trout viscera by a solubilization pretreatment assisted biological enzymatic hydrolysis technology, which comprises the following steps: placing frozen rainbow trout viscera after low-temperature thawing in 0.1% sodium bicarbonate aqueous solution for incubation, instantaneously cooling the mixture of the viscera and the solution for 5 min, and homogenizing the frozen tissue sample by using a tissue homogenizer; oscillating the homogenized viscera liquid in a warm water bath, adding protease for biological enzymatic hydrolysis, and low-temperature centrifuging the enzymatic hydrolysate; taking fish oil after centrifugation; placing the obtained fish oil in a special glass bottle, sealing the glass bottle after flushing in nitrogen, and storing the glass bottle in dark. The yield of the prepared fish oil is up to 90% or more, the color is bright yellow or light yellow, the fish oil is clear and transparent, has no obvious fishy smell and fish oil rancidity, and contains rich polyunsaturated fatty acids (>40%), which is obviously higher than that of commercially available fish oil; the acid value is low, the free fatty acid content is lower than 0.1%, the oxidation induction time is long, and the fish oil has good oxidation stability.

The application discloses a preparation and flavor keeping method of pre-prepared barbecue spring fish, and belongs to the technical field of pre-prepared fish food processing. The method is to marinate the pre-processed spring fish by using a marinating soy sauce composition, brush edible oil and barbecue sauce on the surface of the spring fish in sequence after marinating, and then perform barbecue; cool the barbecue spring fish to room temperature, package and freeze; before eating, remove the frozen pre-prepared spring fish, brush edible oil without thawing, and then directly perform reheating treatment by using an oven. The method can maximize the texture characteristics such as chewiness and elasticity of the freshly prepared barbecue spring fish. Meanwhile, the loss of water and flavor substances in the reheating process can be reduced, and the characteristics of the freshly prepared product can be maximally reserved.

The invention relates to the technical field of fish oil powder processing, and particularly discloses a green preparation process of high-purity fish oil powder, which comprises the following steps: taking a fish oil raw material, removing impurities at a low temperature of less than or equal to 15 DEG C, removing impurities and water, and carrying out molecular distillation at 120-150 DEG C and 1-5Pa to obtain high-purity fish oil with the purity of more than or equal to 90%. Then, preparing the raw materials according to specific parts by weight, premixing the high-purity fish oil with ascorbyl palmitate and lecithin, stirring for 30 minutes at the speed of 40-60 r / min under the protection of inert gas, and mixing with the modified starch and maltodextrin; the preparation method comprises the following steps: by taking deionized water as a solvent, emulsifying a mixture for 15-20 minutes by using a high-shear homogenizer under 20-30MPa to obtain an emulsion, preparing the emulsion into 20-50mu m fish oil powder particles by using a high-pressure spray dryer under specific air inlet and outlet temperature and atomization pressure, performing supercritical carbon dioxide extraction and secondary purification, and finally packaging by using an aluminum foil bag in a high-purity nitrogen environment. The whole process is green and environment-friendly, and the prepared fish oil powder is high in purity, uniform in particle size and high in stability.

The present application relates to the technical field of food processing, and particularly relates to a preparation method and application of fish skin collagen peptide, and a collagen-absorbable jelly and a preparation method thereof.The present application provides a preparation method of fish skin collagen peptide, and the method comprises the following steps: firstly, mixing freeze-dried fish skin and phosphate buffer solution, boiling and then enzymolysis; then, centrifuging the enzymolysis product, taking the supernatant for drying, and obtaining fish skin collagen peptide; the prepared fish skin collagen peptide can be used in the preparation of an anti-anxiety product.The present application also utilizes a composite gel, metal ions, citric acid and fish skin collagen peptide to be compounded to obtain a collagen-absorbable jelly which has certain elasticity, adhesiveness, chewiness, good water retention and sensory evaluation.

The application discloses fish feed containing traditional Chinese medicine fermentation and a preparation method thereof. The method comprises the following steps: (1) crushing soybean powder, secondary powder and corn straw powder and sieving to obtain conventional fish feed; (2) sieving vitamin premix and mineral premix and uniformly mixing; (3) adding traditional Chinese medicine fermentation to the mixture obtained in the step (2); (4) uniformly mixing the mixture in the step (3) and the conventional fish feed in the step (1) according to a formula proportion; (5) adding fish oil to the mixture in the step (4); (6) adding water to the mixture in the step (5), granulating and drying. The application adopts a combined synergistic treatment method of enzymolysis and fermentation to replace the previous decoction and extraction method for the traditional Chinese medicine components, effectively improves the content of active components such as curcumin, free anthraquinone and ginsenoside in the feed particles, reduces the production cost and energy consumption, and the prepared fish feed particles have better quality stability. Meanwhile, the fish feed has better effects in improving the growth and immunity of fishes.

The utility model discloses a fish specimen bottle which comprises a bottle body and is characterized in that an inner tight sleeve is arranged above the bottle body, and an outer tight sleeve is connected to the middle of the inner tight sleeve; after formalin solution and stationary liquid are injected into a manufactured fish specimen body, the fish specimen is lightly placed into a bottle body in which specimen liquid is stored, at the moment, the head of a fish is placed downwards, the tail of the fish is placed upwards, an inner tight sleeve is sleeved above the bottle body, an outer tight sleeve in threaded connection is gradually screwed into an extrusion hole of the inner tight sleeve, and the fish specimen is sealed. At the moment, the space in the inner tight sleeve is gradually compressed by the connecting convex column at the bottom of the outer tight sleeve, air pressure in the inner tight sleeve can be extruded to the rubber layer of the inner tight sleeve, the rubber layer is made of flexible rubber, the outer portion of the rubber layer and the contact wall of the bottle body can be gradually tightened, and the liquid contact plate and the top of the inner tight sleeve are both made of corrosion-resistant alloy materials; the inner tight sleeve does not deform after being extruded, so that the inner tight sleeve and the outer tight sleeve form a double-sealing effect, and the problem that the fish specimen is rotted due to the fact that the specimen bottle is not tight enough in sealing performance is solved.