32results about How to "Reduce the rate of corruption" patented technology

The invention discloses a vegetable fresh-keeping method which includes the steps: (1) sorting and cleaning fresh vegetables, cutting the cleaned vegetables into sections, and placing the vegetables cut into sections into trays; (2) performing sterilization on the trays with the fresh vegetables for 1-15min by leading into low-temperature plasmas; (3) continuing to lead into mixed gas of O2, CO2 and N2 after sterilization, and performing modified atmosphere packaging and refrigeration. The mixed gas of O2, CO2 and N2 generates the low-temperature plasmas through a dielectric barrier discharge device. Microorganisms of the surfaces of the vegetables and the trays can be reduced, corruption rate is slowed down, sense and nutritional quality of products are ensured, the method is obvious in treatment effect, safe, efficient, low in energy consumption, free from exhaust gas residue, simple to operate and convenient and flexible to use, modified atmosphere packaging can be performed by the aid of the trays with stock sizes, and popularization and industrial application are facilitated.

The invention discloses a straw treatment microecological preparation and a preparation method thereof. The straw treatment microecological preparation comprises digestive lactobacillus, lactobacillus fructivorans, lactobacillus buchneri, bacillus pumilus, bacillus polymyxa and bacillus coagulans. The preparation method comprises the following steps of carrying out mixed culture on three lactic acid bacteria: the digestive lactobacillus, the lactobacillus fructivorans and the lactobacillus buchneri which are separated, identified and screened from a silage fermentation system and contain homofermentative lactic bacteria and heterofermentative lactic bacteria; carrying out the mixing culture on three fibrolytic bacteria: the bacillus pumilus, the bacillus polymyxa and the bacillus coagulans which are from the nature; mixing two mixtures into a composite product, wherein the microbial storage inoculation amount of every ton of straws is 1 L. The straw treatment microecological preparation disclosed by the invention can be used for enhancing the silage quality and the aerobic stability and reducing the loss of weight in a fermentation process by reducing pH and protein degradation rate and is very significant to animal husbandry production by reducing the decomposing speed of a silage after the silage is fed by opening a cellar.

The invention relates to a biological fresh-keeping method for improving the fresh-keeping effect of shrimps. The shrimps are soaked in the biological fresh-keeping agent prepared by sodium alginate with a concentration of 20-30g / L for 3-5 minutes, and taken out under the condition of 0-4°C. Preservation; or use tea polyphenols, sodium alginate and stearic acid as raw materials to make a film-forming solution, and then make a composite antibacterial film by pouring film and drying, and then coat the shrimps, and then the film-coated Shrimp should be stored at 0-4°C. The invention is simple and easy to implement, has good fresh-keeping effect, can effectively inhibit the growth of microorganisms in the shrimp body, slow down various chemical and biological changes in the shrimp body, and reduce the protein degradation speed; effectively slow down the spoilage speed of the shrimp and prolong the fresh-keeping period of the shrimp 4 to 6 days, and at the same time can improve the water holding capacity of the shrimp, and improve its appearance and taste; and the raw materials used are all green edible products, with low cost and harmless to human body.

The invention discloses a method for improving impact resistance of bamboo products. The method comprises the following steps: crude moso bamboos of 5-8 years are taken for cutting, joint removal, water boiling softening, flattening and slicing to form pretreated bamboo strips, and are dried to form bamboo products; the bamboo products are dipped in water of a closed container for heating, high-pressure standing, cooling, filtration and natural airing to obtain glue-removed bamboo products; the glue-removed bamboo products are dipped in polyacrylate glue, and are molded through hot pressing toform pretreated bamboo products; corrosion-resistance varnish is coated on the surfaces of the pretreated bamboo products for curing and drying to obtain impact-resistance bamboo strips; and the impact-resistance bamboo strips are woven to obtain the bamboo products. The corrosion-resistance varnish is prepared by adopting the following process: preservative, a wetting agent, a dispersing agent,an anti-freezing agent, a thickening agent and a flatting agent are added in water to stir for full dissolving; then, the stirring speed is accelerated; oxidized polyethlene wax and bentonite composites are uniformly stirred; and then, waterborne polyurethane emulsion, water phenolic resins, a coalescing agent and a defoaming agent are uniformly stirred to obtain the corrosion-resistance varnish.The service life of the bamboo products can be effectively prolonged; and the obtained bamboo products are excellent in toughness and high in shock strength.

The invention relates to a polygonatum rhizome high-quality seedling quick cultivation method. The polygonatum rhizome high-quality seedling quick cultivation method comprises the steps of pretreatment on polygonatum rhizome, treatment of waste polygonatum rhizome, germination treatment, heat shock treatment, rooting treatment, plantlet transplantation, field management and the like. Through directly air-drying treatment on the dug polygonatum rhizome, the polygonatum rhizome high-quality seedling quick cultivation method reduces the water content in the polygonatum rhizome, retards spoilage of the polygonatum rhizome and provides conditions for subsequent rapid germination, thereby reducing consumption of high-quality polygonatum rhizome, promoting uniformity of polygonatum seedlings and greatly reducing the polygonatum planting management cost.

The invention discloses a preparation method of an antibacterial and deodorant material for a refrigerator and a freezer. A porous material with the specific area being 200 m<3> / g-2,000 m<3> / g is used as a carrier, the carrier is one or more of active carbon, a molecular sieve and a resin material, the carrier is subjected to chemical pretreatment, dried and smashed, the fine powder is then soaked in a mixed solution of soluble metal salt, vitamin B12, organic amine substances and an auxiliary, and finally shaping and drying are carried out; the soluble metal salt is one or more of silver salt, zinc salt and nickel salt. The carrier is pretreated with the soluble metal salt, the vitamin and the organic amine substances, and under the effect of the auxiliary, odorous gas existing in the refrigerator and the freezer is completely removed; the effective contact surface of active substances is increased, and the deodorization effect is enhanced; rapid propagation of bacteria is inhibited, the decay speed of food is reduced, and the freshness keeping effect is enhanced; chemical adsorption is good, and release and secondary pollution are avoided.

The invention discloses distribution equipment for tuna cold-chain logistics, and belongs to the technical field of cold-chain logistics transportation. The distribution equipment for tuna cold-chainlogistics comprises a distribution box, a moving mechanism and a control mechanism, wherein the distribution box comprises a main box and a pull type door which are connected slidably; a cold storagebody is built in the pull type door; a regulating mechanism is arranged in an inner cavity of the cold storage body; the telescopic moving mechanism is arranged on the bottom of the distribution box;a carrying mechanism is arranged on the upper surface and the opposite side face of an opening side of the main box; and the control mechanism is conducted to a sealing space formed by the main box and the pull type door and the moving mechanism through an air channel. The distribution equipment for tuna cold-chain logistics solves the problems that during tuna-preservation transportation, the meat quality and the appearance are affected by bumping and colliding, frozen ice is hard to take out, and incompletion in vacuum sterilization is caused; the occurrence of the phenomenon that the meat quality is affected by the temperature difference produced by mis-operating switching for ventilation is avoided; a refrigeration material is environmental-friendly and recyclable; an ordinary truck can be adopted for regional order allocation; and a single cabinet is ventilated independently, so that the distribution equipment for tuna cold-chain logistics is applicable to the requirements on transporting under different road conditions and preserving at different temperatures, and is capable of realizing the functions on quickly loading and transporting, delivering goods at any time, stably transporting, and conveniently taking out the goods.

The invention belongs to the technical field of microorganism application, and provides a fresh-cut fruit and vegetable preservative compounded by antibacterial substances produced through bacillus licheniformis, bacillus atrophaeus and bacillus amyloliquefaciens. The bacillus licheniformis, bacillus atrophaeus and bacillus amyloliquefaciens with strong antibacterial activity are sifted out from the vinegar grain of Shanxi aged vinegar and preserved in the China General Microbiological Culture Collection Center, wherein the numbers of the bacillus licheniformis, bacillus atrophaeus and bacillus amyloliquefaciens are CGMCC 16909, 16911 and 15732 respectively. A culture fermentation liquid supernatant is prepared into a 1.0 mg / mL compound preservative after being subjected to ammonium sulfate precipitation, dialysis and freeze drying, and the compound preservative is applied to preservation of fresh-cut apples and lettuce. As is shown by the result, compared with a control group, after the fresh-cut apples and lettuce to which a pathogenic bacterial mixed liquor is sprayed are treated by the compound preservative, the antibacterial effect is obvious, the colony numbers of staphylococcus aureus, escherichia coli, salmonella enteritidis, shigella flexneri and listeria monocytogenes are all significantly lowered, and the rotting rate of the fresh-cut apples and lettuce is reduced.

The invention relates to a household garbage recycling treatment device, and belongs to the technical field of garbage recycling equipment. The household garbage recycling treatment device comprises abox body, a first partition plate is fixedly mounted in the box body, a second partition plate is fixedly mounted on the side surface of the first partition plate, a feeding hopper is fixedly mountedat the top of the box body and used for placing garbage, a discharging baffle plate which is rotationally connected with the box body is arranged on the lower part of the side surface of the box body, a feeding baffle plate is installed above the second partition plate, and the feeding baffle plate is connected with the box body through rotating mechanisms. According to the household garbage recycling treatment device, four cavities are formed in the box body to throw four kinds of the household garbage, classification is carried out, meanwhile, the feeding hopper is arranged to facilitate throwing of all the garbage at a time by a user, then the rotating mechanisms of the corresponding cavities are rotated respectively to throw the garbage into the inner parts of the corresponding cavities, and the rotating mechanisms automatically drive the feeding baffle plate to block an inlet, so that peculiar smell is prevented from diffusing, throwing is more convenient and efficient, solid-liquid separation is realized, the decay speed is reduced, and the practicability is higher.

The invention relates to a method for growing sealwort seedlings and interplanting cape jasmine. The method includes the steps of sealwort rootstock pretreatment, sealwort rootstock treatment, low temperature activation treatment, shoot inducing treatment, heat-activation treatment, root inducing treatment, sealwort seedling transplanting, cape jasmine cultivation, sealwort field management, the management of the sealwort growing period in the following year, cape jasmine management in the following year, sealwort harvesting and the like. Through the method, the use amount of the good quality rootstocks of the sealwort can be reduced, the orderliness consistency of sealwort bud seedlings can be promoted, and the management cost of sealwort cultivation can be greatly reduced; artificial cultivation is conducted on the obtained sealwort bud seedlings, and the percentage of seedling emergency is higher than the propagation rate of direct heeling-in rootstock; moreover, the sealwort can quickly adapt to the natural environment by being interplanted with cape jasmine, which postpones the sprout tumble period of the sealwort, shortens the planting years of the sealwort, and improves the content of the polysaccharide of the sealwort.

The invention relates to a method of rhizoma polygonati seedling rearing and intercropping with polygonum cuspidatum. The method comprises the steps of pretreatment of rhizoma polygonati root, treatment of polygonatum odoratum discarded root, activation treatment, bud inducing treatment, heat exciting treatment, root inducing treatment, seedling transplanting, polygonum cuspidatum cultivation, rhizoma polygonati large field management, ensuing year rhizoma polygonati, polygonum cuspidatum growth period management, and rhizoma polygonati and polygonum cuspidatum harvesting. The method can reduce the use amount of high quality rhizoma polygonati, promotes the neat consistency of the rhizoma polygonati seedlings, and greatly reduces the management cost of rhizoma polygonati culture. The rhizoma polygonati seedlings obtained through the method are artificially cultivated, the seedling rate is higher than the breeding rate of directly buried rhizome, together with polygonum cuspidatum, rhizoma polygonati can adapt to the natural environment more quickly, the planting years of rhizoma polygonati can be shortened, and the content of the polysaccharide of polygonatum is improved.

The invention relates to the technical field of intelligent household appliances, and discloses a control method for an air conditioner. The control method comprises the steps that a target object in an air conditioner associated area is determined, and current hardness information of the target object is obtained; the current freshness degree of the target object is determined according to the current hardness information; and if the current freshness degree shows that the target object needs to be subjected to fresh-keeping treatment, the air conditioner is controlled to start a fresh-keeping mode. According to the control method, the perishable food is determined as the target object, and the freshness degree is determined according to the current hardness information of the target object; and when a user eats the perishable food or does not place the perishable food back to the refrigerator temporarily, if it is determined that the food has the fresh-keeping treatment requirement, the air conditioner is controlled to start the fresh-keeping mode, so that the food which is not put back to the refrigerator is temporarily kept fresh, the decay speed of the food is slowed down, and the condition of food waste caused by the fact that the user forgets to put the food back into the refrigerator in time is avoided. The invention further discloses a control device for the air conditioner and the air conditioner.

The invention discloses a novel pig blood anti-coagulation and fresh-keeping compound preparation. The novel pig blood anti-coagulation and fresh-keeping compound preparation is prepared by compounding sodium tripolyphosphate, sodium chloride, sodium citrate and glucose, wherein the novel pig blood anti-coagulation and fresh-keeping compound preparation comprises the following components in percentage by weight: 35.0-40.0% of sodium tripolyphosphate, 5.0-7.0% of sodium chloride, 25.0-30.0% of sodium citrate and 30.0-35.0% of glucose. Compared with other anti-coagulation agents, by adopting the compound preparation disclosed by the invention, the hemolysis time can be prolonged by 20-25 hours and the blood coagulation time can be extended to more than 90-100 hours under normal temperature conditions; and moreover, the effects of preventing hemolysis and delaying the pig blood spoilage speed can be synchronously achieved.

The invention discloses a method for enhancing the anticorrosion performance of a bamboo product. The method comprises the following steps: mixing polyvinyl alcohol, epichlorohydrin and sodium hydroxide, adjusting the temperature, performing stirring, adding the obtained mixture into ether to achieve precipitation, filtering the obtained solution, adding talcum powder and an ethanol solution, andsequentially performing uniform mixing, ultrasonic dispersion, stirring and microwave irradiation to obtain a first preformed material; adding a preservative, a wetting agent, a dispersant, an antifreeze agent, a thickener and a leveling agent to water, performing stirring, adding disproportionated rosin and the first preformed material, performing uniform stirring, sequentially adding a styrene-acrylic emulsion, a silicone emulsion, a film-forming additive and an antifoaming agent, and performing uniform stirring to obtain a second preformed material; preprocessing and drying 5-to-8-year-oldbamboo, placing the bamboo in water in a closed container, and sequentially performing heating, high-pressure standing, cooling, filtering and natural drying to obtain a third preformed material; andimpregnating the third preformed material in a phenolic resin glue, performing hot press molding, coating the surface of the hot-pressed bamboo with the second preformed material, curing and drying the coated bamboo to obtain anticorrosive bamboo skins, and weaving the anticorrosive bamboo skins to obtain the bamboo product.

The invention relates to a modifying agent for wood and bamboos. The modifying agent is composed of, by weight, 3-25% of nanometer ceramic particles, 3-12% of polyethylene glycol, 4-8% of cobalt drying agents, 2-10% of paraffin, 3-8% of preservatives, 2-5% of fatty amine polyoxyethylene ether, 1-8% of kieselguhr and 30-85% of water. The modifying agent for the wood and the bamboos has the beneficial effects that the wood and the bamboos treated by the modifying agent have the advantages that the dimensional stability is good, the flame retardant property is good, the corrosion resistance is good, the termite resistance is good and the physical and mechanical property is good; meanwhile, the modified wood and the modified the bamboos are flat in surface, attractive in color and clear in grain.

The invention discloses a distribution equipment for tuna cold chain logistics, which belongs to the technical field of cold chain logistics transportation, and includes a distribution box, a moving mechanism and a control mechanism. There is a built-in cold storage body in the sliding door, an adjustment mechanism is provided in the inner cavity of the cold storage body, a telescopic moving mechanism is provided at the bottom of the distribution box, a carrying mechanism is provided on the upper surface of the main box body and the opposite side of the opening side, and the air path of the control mechanism is connected to The sealed space and moving mechanism formed by the main cabinet and the sliding door. It solves the problems of tuna preservation during transportation, bumps and collisions that affect the quality and appearance of the meat, and the difficulty of taking out frozen freezes and incomplete vacuum sterilization. It avoids the temperature difference that affects the quality of the meat due to temperature differences caused by misoperation and opening of the ventilation. The refrigeration material is environmentally friendly and can be reused, and ordinary vehicles can be used Regional order distribution is carried out, and a single cabinet is independently ventilated. It is suitable for transportation under different road conditions and fresh-keeping requirements at different temperatures.

The invention discloses a method for enhancing the anticorrosion performance of a bamboo product. The method comprises the following steps: mixing polyvinyl alcohol, epichlorohydrin and sodium hydroxide, adjusting the temperature, performing stirring, adding the obtained mixture into ether to achieve precipitation, filtering the obtained solution, adding talcum powder and an ethanol solution, andsequentially performing uniform mixing, ultrasonic dispersion, stirring and microwave irradiation to obtain a first preformed material; adding a preservative, a wetting agent, a dispersant, an antifreeze agent, a thickener and a leveling agent to water, performing stirring, adding disproportionated rosin and the first preformed material, performing uniform stirring, sequentially adding a styrene-acrylic emulsion, a silicone emulsion, a film-forming additive and an antifoaming agent, and performing uniform stirring to obtain a second preformed material; preprocessing and drying 5-to-8-year-oldbamboo, placing the bamboo in water in a closed container, and sequentially performing heating, high-pressure standing, cooling, filtering and natural drying to obtain a third preformed material; andimpregnating the third preformed material in a phenolic resin glue, performing hot press molding, coating the surface of the hot-pressed bamboo with the second preformed material, curing and drying the coated bamboo to obtain anticorrosive bamboo skins, and weaving the anticorrosive bamboo skins to obtain the bamboo product.

The invention discloses a preparation method of a sample for evaluating fish quality, and belongs to the technical field of aquatic product processing. Aiming at the difficulties that a sample is perishable and sensory indexes are unstable in the preparation process of a fish sensory evaluation sample, the invention provides a special device agent sample preparation method for fish sensory evaluation, the temperature control, cutting and sample numbering of the fish sample are determined, and the quality deterioration of the to-be-evaluated sample is slowed down in combination with a fish sensory evaluation device; and the temperature-sensitive material visually reflects the environmental temperature change of the sample, improves the utilization rate of the fish sensory evaluation sample, and improves the sample preparation efficiency and the sample stability.

An air treatment device in the production process of carbon fiber raw silk and its application, belonging to the technical field of chemical fiber production, prolonging the service life of the oil agent, reducing the frequency of oil agent replacement, increasing the output and pass rate of the raw silk, and facilitating uniform oiling and steam drafting The plasticizing effect is beneficial to improve the quality and uniformity of the raw silk. The device includes a workbench, a bracket, an air intake pipe, a main gas delivery pipe and a gas delivery branch pipe. The upper part of the bracket is provided with a collar, the main gas delivery pipe is arranged horizontally and snapped into the collar, and the lower part of the main air delivery pipe is connected with the intake pipe. There are a number of branch gas pipes above the main gas pipe. The position of the branch pipes corresponds to the spinning position of the carbon fiber precursor. A blowing ring is set above the branch pipes. The inner cavity of the blowing ring passes through the branch pipes and the The main pipe is connected, and the inner surface of the air blowing ring is evenly distributed along the circumferential direction with an even number of air injection ports; the air treatment device is set at a position 0.5m-2m in front of the upper oil tank, and the air treatment device is set at a position 0.5m-2m in front of the steam drawing furnace 2m position.

The invention discloses an aquatic product water retention and fresh keeping agent and a freezing and fresh keeping method, and belongs to the technical field of aquatic product storage. The water retention fresh keeping agent comprises the following raw materials in parts by weight of 4-9 parts of trehalose; 1-5 parts of xanthan gum; 0.6-1.2 parts of a mesona chinensis benth extract; 3-7 parts ofcarboxymethyl chitosan; 1-2 parts of orange peel essential oil; 0.2-0.6 part of carnosol; and 2-3 parts of gamma terpinene. According to the method, the pretreated aquatic products are treated with the water retention and fresh keeping agent and then frozen and stored, the water retention and fresh keeping agent can reduce mechanical damage to muscle tissue in the freezing process and improve thewater-retaining property of the aquatic products, the aquatic products have good sensory evaluation of color, texture, taste and the like, and the freezing and storing time is prolonged; and meanwhile, the water retention and fresh keeping agent disclosed by the invention also has very good antibacterial and antioxidant properties, the decay speed of protein and fatty acid in the aquatic productscan be reduced, and the shelf life of the aquatic products is prolonged.

The invention relates to a wood and bamboo size stabilizer. The wood and bamboo size stabilizer comprises the following components in percentages by mass: 3%-25% of nano ceramic particles, 2-7% of white spirits, 4-8% of a cobalt drier, 2-10% of paraffin, 3-8% of a preservative, 2-5% of fatty amine polyoxyethylene ether, 4-9% of kieselguhr and 30-80% of water. The wood and bamboo size stabilizer has the beneficial effect that the wood and bamboo size stabilizer is provided, and woods and bamboos which are treated by the wood and bamboo size stabilizer has lots of advantages of good size stability, good flame retardant property, good corrosion resistance, high termite-proof property, good physical and mechanical properties and the like; and meanwhile, the modified woods and bamboos have flat board surfaces, and are attractive in color and clear in texture.

The present invention is directed to a process for making fat-containing dairy based food products such as cheese, without the use of emulsification salts and products made by the process.

The invention discloses a biological freshness-keeping film for shrimps, and a preparation method thereof. The biological freshness-keeping film for the shrimps is prepared through carrying out film casting and drying for a film forming solution adopting sodium alga acid, tea polyphenol and stearic acid as matrixes, wherein components of the film forming solution comprise: 20-30 g / L of the sodiumalga acid, 10-16 g / L of the tea polyphenol, 10-18 g / L of the stearic acid and 0.4-0.6% of glycerol, the pH value of the film forming solution is 5-5.5. The prepared biological freshness-keeping film is stored and used under a condition of the relative humidity less than 50%. With the present invention, the preparation method provided by the present invention is simple; with the prepared biological freshness-keeping film, the growth of the microorganisms on the shrimps can be effectively inhibited, various chemical changes and various biological changes in the shrimps can be slowed so as to reduce the protein degradation rate, effectively slow putrefaction rates of the shrimps, prolong the freshness-keeping time of the shrimps by 4-6 days; the prepared biological freshness-keeping film hascharacteristics of good mechanical property, good antibacterial property, green and edible raw materials, low cost, safety and reliability.

The invention relates to a horizontal multifunctional garbage storage bin. An outer-wall barrel body is transversely arranged on limiting supports, a solid-liquid separation baffle is arranged inside the outer-wall barrel body, and a liquid garbage recycling bin and a solid garbage recycling bin are arranged on the portions, at the two sides of the solid-liquid separation baffle, in the outer-wall barrel body respectively; the outer side of the liquid garbage recycling bin and the outer side of the solid garbage recycling bin are each provided with a side-face cover connected with the outer-wall barrel body, and the upper portion of the liquid garbage recycling bin and the upper portion of the solid garbage recycling bin are provided with a liquid opening box and a solid opening box respectively; and the liquid opening box and the solid opening box are each provided with an opening and closing cover, the lower portion of the liquid garbage recycling bin and the lower portion of the solid garbage recycling bin are each provided with a liquid drain outlet, a valve is arranged on the lower portion of each liquid drain outlet, and a filtering device is arranged inside the liquid opening box. The garbage storage bin is arranged in a horizontal manner, the stability is improved, solids and liquids are treated separately, the garbage decay speed is decreased, and cleaning convenience of the garbage bin itself is improved.

The invention provides a fresh-keeping slow-release agent for fruits and vegetables and a preparation method thereof, and relates to the technical field of fresh-keeping of fruits and vegetables. Thefresh-keeping slow-release agent is composed of the following components in parts by weight: 10-20 parts of sodium chlorite, 1-4 parts of butyl hydroxyanisole, 50-60 parts of active diatomite, 30-40 parts of oyster shell powder, 5-10 parts of a composite inorganic salt, 15-20 parts of an Arabic gum powder / acrylamide copolymer, 2-4 parts of sodium lauryl laurate, 1-2 parts of sodium stearate, 4-8 parts of sodium carboxymethylcellulose, and 5-10 parts of triacetyl-beta-cyclodextrin. The release time of ClO2 in the fresh-keeping slow-release agent for the fruits and vegetables is long, and the fresh-keeping effect is good. The fresh-keeping slow-release agent without film coating treatment has large release amount of ClO2 gas in the previous period, has fast release speed and easily producesdamage on fruits and vegetables; the fresh-keeping slow-release agent without film coating treatment has small release amount of ClO2 in the later period and difficultly plays a fresh-keeping effect.

The invention relates to the technical field of aquatic product preservation, in particular to a fresh-keeping process for frozen aquatic products. The use of sodium ascorbate, konjac polysaccharide and tea polyphenol in a fresh-keeping liquid ice film can effectively inhibit the oxidation rate of aquatic products and ensure the appearance and color of the aquatic products; moreover, a perilla herb extract, the propolis, chitosan and nisin are matched for use, so that a fresh-keeping liquid has good sterilization performance, the decay rate of the aquatic products is reduced, and the shelf life of the aquatic products is prolonged; the sodium ascorbate, sodium metaphosphate, sodium pyrophosphate, tryptophan and leucine cooperate with one another, so that the prepared fresh-keeping liquid has a good fresh-keeping function, and the meat quality and the mouth feel of the aquatic products soaked in the fresh-keeping liquid can be kept in a fresh, tender and elastic state for a long time inthe storage process, and the delicious meat quality of the aquatic products is ensured.