202 results about "Fish skin" patented technology

Provided is a bionic rescue robot fish, including a fish body skeleton, a fish head skeleton, a fishtail swing mechanism, a pectoral fin swing mechanism, a rescue mechanism and a buoyancy adjusting mechanism. The fish body skeleton is movably connected to the fish head skeleton. The fishtail swing mechanism, the pectoral fin swing mechanism, the rescue mechanism and the buoyancy adjusting mechanism are arranged on the fish head skeleton. Bionic fish skin is attached to surfaces of the fish body skeleton and the fish head skeleton in a sealing manner. The fishtail swing mechanism, the pectoral fin swing mechanism, the rescue mechanism and the buoyancy adjusting mechanism are each communicated with a control unit. The rescue mechanism can release a lifesaving airbag, and the buoyancy adjusting mechanism can change the volume of fish belly part.

The present invention discloses a pectoral fin steering bionic fish driven by a dual-half-gear mechanism. The head of the fish comprises an outer shell formed by two interlocking shells, which is an asymmetrical structure with a waterproof cavity formed inside. Pectoral fins are arranged on either side of the outer shell, and a pectoral fin control mechanism for controlling the rotation of the pectoral fins is located within the waterproof cavity. The tail is formed by assembling a multi-section skeleton. A dual-half-gear tail swing mechanism for controlling the swing of the tail fin is located within the skeleton. The skeleton is covered with waterproof fish skin. The dual-half-gear tail swing mechanism includes a main shaft, two spaced-apart half-gears connected to the main shaft, and a rocker arm. The rocker arm has a mating gear, which is connected to a sleeve arm that is inserted into the rocker arm to form a linear bearing structure. The sleeve arm extends rearwardly through a pin to connect to the skeleton. The dual-half-gear mechanism and the linear bearing structure transmit swinging power to control the swing of the fish tail. The present invention utilizes a dual-half-gear tail swing mechanism to control tail swinging, resulting in high mechanical transmission efficiency, high control accuracy, and the ability to perform relatively complex motions.

The invention discloses a preparation method and application of anti-photoaging collagen polypeptide. The preparation method comprises the following steps: unfreezing and cleaning silver carp skin, airing and cutting; naHCO3 is added, and soaking is carried out; adding Na2CO3 and carrying out ultrasonic impurity removal; performing ultrasonic-assisted treatment; adding protease for enzymolysis treatment; establishing an enzymolysis kinetic model under the alkaline protease condition; standing, cooling and centrifuging the enzymatic hydrolysate, collecting supernate, filtering, and performing vacuum freeze drying to obtain faint yellow SCSCP; the light aging resistant peptide SCSCP02 is separated, and the active peptide sequences of the light aging resistant peptide SCSCP02 are GPPGPPGTPGPQ, SGLPGPIGPPGPR and GLPGPIGPPGPR. The active substances which are extracted from the fish skin and have the anti-photoaging effect can reduce the risk of skin light damage caused by UVR by acting on various treatment targets, resource waste can be reduced, environmental pollution caused by biological resources can be relieved, and sustainable development of the industry can be promoted.

The invention relates to the technical field of collagen peptide extraction, and particularly discloses aquatic collagen tripeptide and a processing technology thereof, and the processing technology comprises the following steps: step S1, fish skin pretreatment; step S2, performing enzymolysis; step S3, fermentation; step S4, separation and purification; starting from three aspects, firstly, a modified degreasing agent is added in the degreasing treatment process, the modified degreasing agent takes 1-ethyl-3-methylimidazole acetate, zinc phytate and calcium citrate as main components according to a specific mass ratio, and secondly, gel emulsion is added in the enzymolysis process, so that the modified degreasing agent is prepared. The gel emulsion has an oil gel structure, grape seed oil and sodium lignin sulfonate, and 3, a composite strain is added in the fermentation process, the composite strain is prepared by mixing bacillus natto and lactobacillus plantarum according to a specific proportion, and the purity and the extraction rate of the aquatic collagen tripeptide are improved through the synergistic effect of all the procedures.

The invention provides a fish collagen peptide with skin brightening and freckle removing effects as well as a preparation method and application thereof, and belongs to the technical field of protein peptides. The preparation method comprises the following steps: by taking fish skin and / or fish scales as raw materials, performing degreasing and fishy smell removal treatment, and then sequentially performing heat treatment, homogenization treatment, enzymolysis treatment and enzyme deactivation refining to obtain the fish collagen peptide. In the fish collagen peptide prepared by the invention, the proportion of polypeptide with the molecular weight of 189-3000Da is more than 90%, and the protein content is more than 99.23%. Experiments show that the fish collagen peptide can effectively reduce the skin color spot area proportion of a subject and improve the skin L value and ITA value of the subject at the same time. Therefore, the fish collagen peptide prepared by the invention has good skin brightening and freckle removing effects, and a new way is provided for preparing related products.

The invention belongs to the technical field of collagen peptide extraction, and discloses a preparation process of low-fishy-smell marine fish skin collagen peptide, which is used for solving the problems of incomplete fishy smell removal and high protein loss rate in the traditional fishy smell removal process. Comprising the following steps: (1) immersing fish skin into water, adding lipase, cleaning the fish skin with pure water, and homogenizing to obtain homogenate; (2) adding saccharomyces cerevisiae and purple perilla juice into the homogenate, carrying out heat preservation and enzymolysis at 30 DEG C, then heating to 45 DEG C, adding compound enzyme for enzymolysis, and heating for enzyme deactivation to obtain collagen peptide enzymatic hydrolysate; (3) adding activated carbon and diatomite into the collagen peptide enzymatic hydrolysate, keeping the temperature at 70 DEG C, stirring, and carrying out filter pressing and refined filtration to obtain a collagen peptide decoloring solution; (4) sterilizing and concentrating the collagen peptide decoloring solution to obtain a collagen peptide concentrated solution; and (5) drying the collagen peptide concentrated solution to obtain collagen peptide powder. The collagen peptide prepared by the method is almost free of fishy smell and low in protein loss.

The present invention relates to the technical field of active substance extraction, and specifically relates to a mineral-containing high-purity collagen tripeptide and a preparation method therefor. A high-purity collagen tripeptide containing mineral elements and having a high hydroxyproline content and no bad flavor, particularly no bitterness is obtained by using a byproduct of aquatic product processing, i.e., fish skin or fish scales, as a raw material, using a one-step enzymolysis method, and performing nanofiltration twice.

The invention provides collagen tripeptide liquid with moisturizing and anti-photoaging effects and a preparation method thereof, and relates to the technical field of bioactive peptides.The preparation method comprises the steps that pretreatment and first-time enzymolysis are conducted, specifically, pretreated fish skin and water are mixed, the pH value is adjusted, compound protease is added for enzymolysis, and first enzymatic hydrolysate is obtained; second-time enzymolysis: adjusting the pH value of the first enzymatic hydrolysate to 6.0-7.5, adding neutral protease for enzymolysis, and then adding aminopeptidase for enzymolysis for 20-40 minutes to obtain second enzymatic hydrolysate; and performing enzyme deactivation, decoloration, separation and purification to obtain collagen tripeptide liquid. Wherein the content of collagen tripeptide, the content of glycine-proline-hydroxyproline and the content of hydroxyproline are high, and good moisturizing and anti-photoaging effects are achieved.

Collagen peptide compositions and methods for producing these collagen peptide compositions from fish skin or fish scale are provided. The collagen peptide compositions are characterized by high protein content, minimal impurities, enriched hydroxyproline, and specific peptide sequences, making them suitable for use as supplements or additives in food and beverages.

The preparation method comprises the following steps: (1) fish skin pretreatment: (2) gas foaming treatment: weighing sodium borohydride with a certain molar concentration, dissolving the sodium borohydride in a phosphate buffer solution with a certain concentration, stirring until bubbles in the solution are obviously generated and most of solids are dissolved, and then, carrying out gas foaming treatment; putting the cleaned fish skin tissues in the step (2), and performing foaming treatment; (3) cleaning treatment; and (4) protection and storage. The gas foaming technology is innovatively adopted for decellularization treatment, the interface stripping effect between cells and a matrix is remarkably enhanced on the premise that the collagen three-dimensional structure and the scaffold morphology integrity are not damaged, and the method is suitable for the decellularization pretreatment process of soft tissue (such as fish skin and placenta) with a compact structure or cell-intensive type. The development of a biomedical material, especially a tissue engineering scaffold technology, is promoted, and the preparation method has a wide application prospect.

The invention discloses a preparation method of composite active peptide with anti-wrinkle, whitening and freckle-removing effects from marine fish byproducts, cod byproducts, namely fish heads, fish bones and fish skins, are used as raw materials and are mixed according to the mass ratio of 3: 3: 4, and the composite active peptide is prepared through the steps of pretreatment, enzymolysis, enzyme deactivation, centrifugal separation and purification. A compound enzyme used in the enzymolysis step is composed of trypsin and papain according to a certain proportion, and the enzyme addition amount, the enzymolysis time, the enzymolysis temperature and other conditions are optimized. The prepared composite active peptide with the anti-wrinkle, whitening and freckle-removing effects from the marine fish by-product has good anti-wrinkle, whitening and freckle-removing effects, resource utilization of the cod by-product is achieved, and the composite active peptide has high application value.

The invention relates to the technical field of mixing equipment, and discloses a stuffing mixing device for fish-skin mashed shrimp processing, which comprises a mixing machine body, a bottom plate for supporting is mounted at the bottom of the mixing machine body, a motor box is mounted at the top of the mixing machine body, a motor for driving rotation is mounted in the motor box, and the mixing machine body is internally provided with a motor for driving rotation. A mixing barrel for placing materials is mounted at the bottom of the outer wall of the mixing machine body, and a stirring assembly for mixing the materials is mounted at the output end of the motor; the stirring assembly comprises a rotating disc, a rotating shaft, stirring rods and stirring blades, the rotating disc is mounted at the output end of the motor, and the rotating shaft is eccentrically mounted at the bottom of the rotating disc. By arranging the control assembly and the adjusting assembly, the distance and the angle of the stirring blades can be adjusted according to the pressure of material extrusion on the stirring blades, and the material mixing effect is improved.

The invention belongs to the technical field of biological medicine manufacturing, and particularly relates to preparation and application of collagen peptide with whitening activity. The preparation method of the collagen peptide with the whitening activity comprises the following steps: step A, inoculating bacillus subtilis into a culture medium containing a moringa oleifera leaf extracting solution, fermenting for 6-12 hours, inoculating aspergillus niger, continuously fermenting for 36-48 hours, sterilizing, centrifuging, and taking supernate to obtain moringa oleifera leaf fermentation liquor; and step B, scaling the fish skin, cleaning, drying and crushing, adding the moringa oleifera leaf fermentation liquor, reacting for 6-10 hours at the pH value of 6.0-7.0 and the temperature of 35-45 DEG C, and performing ultrafiltration, filtrate concentration and freeze-drying to obtain the collagen peptide. The preparation process has the advantages of low cost, greenness and high efficiency, and the prepared collagen peptide shows the activity of inhibiting tyrosinase and can be applied to preparation of skin care products or medicines with a whitening function.

The utility model discloses a conveying assembly for fish processing, which comprises symmetrically arranged supporting frames, conveying box bodies are arranged on the supporting frames, one conveying box body is fixed on the supporting frame on the right side, a supporting seat is arranged on one side of each conveying box body, and conveying belt parts are symmetrically arranged in the conveying box bodies. The front side and the rear side of each conveying box body are provided with elastic parts which can elastically extrude the conveying belt parts which are symmetrically arranged up and down, each supporting seat is provided with a peeling part, the rear side of each supporting seat is provided with a driving mechanism, and the other supporting frame is provided with a rotating mechanism which can drive the conveying box body to rotate. Compared with the prior art, the fish skin can be automatically removed, the working efficiency is improved, and meanwhile fishes of different sizes can be treated respectively.

The invention discloses an animal feed additive composition, an animal feed and application of the animal feed. The animal feed additive comprises marine animal-derived hydroxyapatite, takifugu fish skin glue, composite algae powder and euphausia superba powder. Marine animal source hydroxyapatite is derived from takifugu calthrop bone meal. The animal feed additive composition comprises the following components in percentage by mass: 40%-50% of takifugu calthrop bone meal; 10%-15% of takifugu fish skin glue; 30%-40% of composite algae powder; and 10%-15% of euphausia superba powder. The invention also discloses an animal feed, which comprises a basal feed and the animal feed additive composition accounting for 3.0-6.0% of the mass of the basal feed. According to the application, the takifugu calthrops are converted into the animal feed additive composition with high additional value from fish skin processing waste for the first time, so that single-component chemical additives such as stone powder and calcium hydrophosphate which are widely used at present can be replaced, and resource utilization and high-value utilization of marine fishery waste are realized.

The invention relates to the technical field of collagen peptide extraction, and specifically discloses an aquatic collagen tripeptide and a processing technology thereof. The process comprises the following steps: step S1, pretreating fish skin; step S2, enzymatic hydrolysis; step S3, fermentation; and step S4, separation and purification. The invention proceeds from three aspects: first, a modified degreasing agent is added during the degreasing process, wherein the modified degreasing agent comprises 1-ethyl-3-methylimidazole acetate, zinc phytate and calcium citrate in a specific mass ratio as main components; second, a gel emulsion is added during the enzymatic hydrolysis process, wherein the gel emulsion has an oil gel structure, grape seed oil and sodium lignin sulfonate; and third, a composite strain is added during the fermentation process, wherein the composite strain is prepared by mixing Bacillus natto and Lactobacillus plantarum in a specific ratio. Through the synergistic effect of the above steps, the purity and extraction rate of the aquatic collagen tripeptide are improved.

The invention belongs to the technical field of nutrient solutions, and particularly relates to a concentrated nutrient solution helpful for improving special nutritional ingredients of animals and having health-care efficacy, the concentrated nutrient solution is prepared from the following components: composite small molecule peptides, composite vitamins, composite minerals, composite amino acids and fructo-oligosaccharide; wherein the composite small molecule peptide is formed by mixing fish skin oligopeptide, sea cucumber peptide and corn oligopeptide; the compound vitamin is formed by mixing vitamin A, vitamin B12, vitamin C and vitamin D3; the composite mineral substance is formed by mixing calcium lactate, calcium hydrophosphate, ferrous sulfate and zinc sulfate; the compound amino acid is formed by mixing lysine, methionine, threonine and tryptophan. The fish skin oligopeptide, the sea cucumber oligopeptide and the corn oligopeptide in the composite small molecule peptide can achieve a synergistic effect, can promote growth of young broilers, can promote nutrient absorption and can reduce feed consumption; in addition, the immunity of the chick broiler chicken can be improved, so that the survival rate is increased.

The present application belongs to the technical field of nutritional functional food and health food, and particularly relates to a preparation method of marine fish skin collagen oligopeptide beneficial to promoting skin health, and a product and application thereof. The method comprises the following steps: after deep sea fish skin is pretreated by salt dissolution with a NaCl solution, trisodium citrate is added as an enzymolysis aid, and neutral protease (from Trichoderma reesei) and papain are sequentially used for two-step enzymolysis, and after enzyme inactivation, impurities are removed, sterilization is performed, and concentration, drying are performed to obtain the product. In vitro cell experiment verification shows that the product can significantly promote human skin fibroblast proliferation; in vivo animal experiment verification shows that the product can significantly increase skin moisture content, reduce transdermal water loss, increase hydroxyproline content, improve SOD activity and reduce MDA content. The product is suitable for the field of nutritional functional food and health food, and has a good application prospect in promoting skin health.

The present application relates to the technical field of biology, and particularly relates to an antioxidant peptide and ACE inhibitory peptide from tuna, and a preparation method and application thereof. The amino acid sequence of the polypeptide provided by the present application is shown as SEQ ID NO. 1-6. The present application takes tuna skin waste as raw material, obtains tuna skin collagen through enzymolysis, then performs liquid chromatography-tandem mass spectrometry identification and molecular docking screening on the tuna skin collagen enzymolysis product, and obtains polypeptides with antioxidant activity and polypeptides effectively inhibiting ACE activity. The method simplifies the protein extraction step. Meanwhile, the method can improve the deep processing level of the tuna industry, achieve high-value utilization, and reduce the environmental pressure on processing waste.

The present application relates to the technical field of fishbone separating device, in particular to a fishbone separating machine for fish food processing, which comprises a base, the upper end of the base is fixedly connected with a processing cylinder, the outer side of the processing cylinder near the upper position is a feeding port, the inner side of the processing cylinder is provided with an extrusion roller shaft, the lower side of the extrusion roller shaft of the processing cylinder is fixedly connected with a filter cartridge, the inner side of the filter cartridge is installed with a separating mechanism for discharging minced meat, the inner side of the separating mechanism is installed with a fishbone removing mechanism for processing fishbone inside the filter hole of the filter cartridge, the hollow shaft and the installation cylinder are axially advanced by cooperating with the material removing assembly, the minced meat inside the filter cartridge can be stably and non-residually pushed outwards, which effectively avoids the decrease of separation efficiency caused by the accumulation of minced meat and the blockage of fishbone; the fishbone, fish skin and other waste materials outside the filter cartridge are synchronously cleaned by the driving arc-shaped scraper, forming a linkage operation mode of synchronous minced meat pushing and fishbone waste discharging.

The invention belongs to the technical field of collagen peptide preparation, and particularly relates to a proline aminopeptidase mutant and application thereof in collagen peptide preparation. The amino acid sequence of the proline aminopeptidase mutant is as shown in SEQ ID NO. 2. The proline aminopeptidase mutant provided by the invention has the advantages of high enzyme activity, wide temperature and pH adaptation range, capability of adapting to a long-time high-temperature environment of collagen enzymolysis and the like, and is suitable for deep hydrolysis of collagen. Through cooperation with neutral protease, papain and collagenase, collagen raw materials from fish skin can be effectively degraded, the yield of low-molecular-weight peptide is increased, and collagen peptide with the molecular weight smaller than 1000 Da and accounting for 90% or above, collagen tripeptide accounting for 39% or above, collagen dipeptide accounting for 2% or above and the content of characteristic dipeptide Hyp-Gly being remarkably increased is generated. The method has important application value in the field of oriented preparation of collagen dipeptide.

This invention relates to a pufferfish TRPV1 inhibitory peptide, its preparation method, and its application. The amino acid sequence of the peptide is LDIF. The preparation method includes: 1. Enzymatically hydrolyzing pufferfish skin, then inactivating the enzyme, and screening for peptides with a molecular weight not greater than 1 kDa from the hydrolysate, followed by freeze-drying to obtain the pufferfish skin enzymatic hydrolysate peptide; 2. Performing mass spectrometry analysis on the pufferfish skin enzymatic hydrolysate peptide, using mass spectrometry analysis software, and selecting multiple non-repeating peptide sequences based on the criteria of confidence level -10lgP > 20 and amino acid count < 10; 3. Molecularly docking the selected peptide sequences with the TRPV1 receptor using software to select peptide sequences with strong binding affinity to the TRPV1 receptor; 4. Solid-phase synthesis of the selected peptide sequences to obtain the peptide LDIF. This invention uses pufferfish skin as raw material to obtain a peptide with good inhibitory effect on TRPV1, which can be used to prepare skin care products for soothing sensitive skin.

This application belongs to the field of biotechnology, specifically relating to giant salamander skin collagen peptides, their preparation methods, and applications. This application provides a method for preparing giant salamander skin collagen peptides. The method first pre-treats the fish skin, then performs ultrasonic-assisted extraction under acidic conditions to effectively promote collagen dissolution. The extract undergoes flocculation to remove impurities, significantly reducing interference from other proteins. The enzymatic hydrolysis stage employs a stepwise enzymatic hydrolysis strategy: first, a combination of alkaline protease and another specific protease is used for hydrolysis, sequentially cleaving the complex structure of giant salamander skin collagen to improve initial hydrolysis efficiency and generate specific intermediate peptides; subsequently, a flavor protease is added for further deep hydrolysis to achieve complete hydrolysis. This method has high enzymatic hydrolysis efficiency, controllable hydrolysis degree, concentrated molecular weight distribution of the obtained collagen peptides, high yield of the target product, and stable process.

The application discloses a preparation method of sturgeon peptide and application of the sturgeon peptide in improving immunity and sexual function. The method comprises the following steps: S1, one or more of sturgeon cartilage, fish bone and fish skin are crushed after being thawed, and pure water is added according to a material-liquid ratio of 1:3-1:4 and is pumped into an enzyme hydrolysis tank; S2, the enzyme hydrolysis tank is heated to 85-90 DEG C under the condition of a closed low pressure of 0.06-0.08 MPa, and protein is denatured for 15-20 min; S3, the temperature is reduced to 60-65 DEG C, the pH is adjusted to 8.0-8.5, 2‰-3‰ alkaline protease of the raw material amount is added, and constant-temperature enzyme hydrolysis is carried out for 170-190 min; the temperature is increased to 85-90 DEG C after the enzyme hydrolysis is completed, and the enzyme is inactivated for 14-16 min; S4, decolorization is carried out; S5, filtration and concentration are carried out; S6, vacuum concentration is carried out; S7, sterilization and drying are carried out, and sturgeon peptide finished products are obtained. The sturgeon peptide obtained by the preparation method has small molecular weight and high active ingredients.

The present invention provides a feed-grade natural colorant and its preparation method and application. The preparation method of the feed-grade natural colorant includes the step of mixing a lipase oil suspension with a natural pigment extract for enzymolysis; the lipase oil suspension is composed of lipase, water, Tween 60, monoglyceride and grease, wherein the mass content of lipase is 3-10%, and the mass contents of Tween 60, monoglyceride and grease are 30-40%, 20-30% and 10-20% respectively. After the natural pigment extract is enzymolyzed with the lipase oil suspension, the absorption of the natural pigment in the small intestine can be greatly increased, and its bioavailability can be improved, thereby being applied to feed to improve egg yolk yolk color, fish skin color, etc., and the raw materials of the product of the present invention are all natural substances, with advantages such as safety and no toxic side effects, and can completely replace the use of chemically synthesized pigments in animal feed.

This invention relates to an efficient process designed to recycle materials from the food industry, preferably fisheries, such as materials extracted from fish skin, thereby enabling a universal, at least partially recyclable and sustainable process for consumer products, including bioplastic films.

This invention discloses an active peptide remover, method, and application for removing inappropriate decorations from the surface of stone cultural relics, relating to the field of stone cultural relic protection technology. The active peptide remover comprises: 0.5-5% surface active peptides, 0.1-1% auxiliary components, and the balance being deionized water; the surface active peptides are one or more selected from soybean peptides, deep-sea fish skin peptides, sea cucumber peptides, wheat peptides, corn peptides, silk fibroin peptides, and whey protein peptides; the auxiliary components are stabilizers and / or pH adjusters, the stabilizers being one or more selected from xanthan gum, carrageenan, bentonite, and kaolin, and the pH adjusters being citric acid or sodium hydroxide, with the active peptide remover having a pH value of 6.5-7.5. This active peptide remover not only avoids damage to stone cultural relics caused by high-temperature steam and sandblasting media; it also breaks down the adhesion between the decorations and the stone, helping to reduce the pressure, temperature, and time required for steam cleaning and sandblasting removal.

1. Name of the designed product: ornament (ice and snow fish skin picture). 2. Use of the designed product: the designed product is used for ornament and display. 3. Design points of the designed product: in shape. 4. Picture or photo showing the design points: perspective view.

The invention discloses energy-saving fish meat rapid separation equipment, and relates to the technical field of energy-saving aquatic product processing equipment.The separation equipment comprises a feeding bin, a meat separation barrel is arranged below the feeding bin, a meat separation belt is arranged below the meat separation barrel, and an adjusting mechanism used for adjusting the posture of fish meat is arranged in the feeding bin; through cooperation of a shifting plate and an auxiliary plate, the posture of fish meat fed into the feeding bin can be adjusted, so that the fish meat can enter in a horizontal posture when entering the meshing position of a meat separation barrel and a meat separation belt, the contact area of the fish meat with the meat separation barrel and the meat separation belt is increased, the fish meat is prevented from being wrapped by fish bones, fish skin and other impurities, and the meat separation efficiency is improved. According to the device, the posture of the fish meat is adjusted, the fish meat separation effect is influenced, secondary adjustment can be performed on the fish meat after posture adjustment through movement of the matching plate and the matching rod, part of the fish meat without posture adjustment can also be greatly adjusted, the requirement that the fish meat enters the meshing position of the meat separation barrel and the meat separation belt subsequently is met, and the fish meat separation effect is improved.

The invention relates to the technical field of colla corii asini cakes, and discloses a preparation method of a colla corii asini cake added with hippocampus powder and fish skin glue, and the preparation method comprises the following steps: (1) grinding dried hippocampus into powder for later use; (2) weighing the red dates, the black sesame, the walnut kernels, the xylitol, the Chinese wolfberry fruits and the Chinese yam powder for later use; (2) the adhesion is reduced: compared with the traditional donkey-hide gelatin cake, after 30% of fish skin glue is added into the Haizerluyuan cake, the adhesion of the Haizerluyuan cake is obviously reduced, the problems of tooth sticking and bag sticking are reduced, and the eating comfort is improved; (3) functionality: the addition of the hippocampus ingredient can enhance the immune regulation function of the donkey-hide gelatin cake and increase the health attribute of the product; by adding digestible components such as Chinese yam and compounding with fish skin glue, the donkey-hide gelatin cake is easier to chew and swallow, digestion is promoted, and the donkey-hide gelatin cake is more suitable for old people and groups with weaker digestive systems; (4) sensory characteristics: the taste intensity of the product in sour taste and bitter taste is lower than that of other samples, and a more mild and pleasant eating experience is provided.