100 results about "Microencapsulations" patented technology

The invention discloses a composition containing soybean oligosaccharides and MCT oil and application of the composition in preparation of meal-replacement weight-losing products, and relates to the technical field of meal-replacement weight-losing products. Comprising the following raw materials in parts by weight: 8-12 parts of MCT oil organic nanocrystals, 3-5 parts of microencapsulated MCT oil, 15-20 parts of soybean oligosaccharides, 10-20 parts of a sustained-release protein matrix, 10-20 parts of composite dietary fibers and 2-6 parts of plant active ingredients. The composition containing the soybean oligosaccharides and the MCT oil is remarkable in weight losing effect, strong in satiety and good in stability, and the body weight is not prone to rebound.

The utility model provides a prefabricated wallboard with a reinforcing structure, which belongs to the field of prefabricated wallboards and comprises a wallboard unit, and a composite structure used for improving the strength of the wallboard unit is arranged in the wallboard unit. According to the utility model, energy can be effectively dispersed and absorbed when being impacted, so that the wall body structure is protected from being damaged; the main bearing capacity and the structural stability of the wallboard are provided, and the reinforcing grid layer is impregnated with special resin or polymer to enhance the binding power of the reinforcing grid layer; the glass fiber gridding cloth can prevent the concrete layer from cracking; the fireproof and moistureproof layer can effectively prevent fire from spreading, and can prevent the interior of the wallboard from being damped and mildewed; the microporous self-healing coating contains a special coating of a microencapsulated healing agent, when tiny cracks appear on the surface of the wallboard, the microcapsules are broken to release the healing agent, and the cracks are automatically filled and repaired, so that the service life of the wallboard is prolonged, and the durability of the wallboard is improved.

The invention relates to the technical field of mouthwash, in particular to natural plant extract mouthwash and a preparation method thereof. The natural plant extract mouthwash is prepared from the following components in percentage by mass: 10 to 12 percent of citrus aurantium flower hydrolat, 6 to 8 percent of Hangzhou white chrysanthemum hydrolat, 5 to 7 percent of honeysuckle flower hydrolat, 4 to 5 percent of jasmine flower hydrolat, 4 to 5 percent of herba eupatorii hydrolat, 3 to 5 percent of glycerinum, 1 to 2.5 percent of enzyme microencapsulated powder, 0.5 to 0.8 percent of capryloyl hydroximic acid, 0.4 to 0.6 percent of ethylhexylglycerin, 0.1 to 0.2 percent of sodium benzoate, 0.05 to 0.1 percent of dipotassium glycyrrhizinate and 53.8 to 66.05 percent of pure water. The natural plant extract mouthwash provided by the invention has efficient cleaning and nursing effects and excellent stability, effectively solves the problems that enzyme active components are easy to inactivate in a liquid environment and short in storage period through an enzyme microencapsulation technology, realizes long-acting antibacterial and dental plaque decomposition effects, and has the advantages of no side effect, no side effect, no toxic or side effect and the like. Meanwhile, the five kinds of plant hydrolats are compounded, so that the product is endowed with fresh and pleasant plant fragrance and pleasant use experience, and mild antibacterial, anti-inflammatory and soothing effects on the oral cavity are achieved through natural active substances contained in the plant hydrolats.

The invention provides a coffee and soybean milk composition for body weight management and a preparation method thereof. The coffee and soybean milk composition comprises the following components in parts by mass: 10-20 parts of a coffee component, 20-60 parts of a soybean protein component, 5-10 parts of a mitochondrial activator and 5-15 parts of dietary fibers. According to the coffee and soybean milk composition provided by the invention, the coffee component, the soybean protein component, the mitochondrial activator and the dietary fiber are scientifically and specifically proportioned, so that key functional components, namely caffeine and chlorogenic acid in coffee, generate a synergistic biological effect with the soybean protein; and a coordinated regulation system of a targeted lipid metabolism full chain is systematically constructed. According to the preparation method, the coffee-dietary fiber microcapsule powder is obtained through a microencapsulation process, the structure can effectively protect heat-sensitive components such as chlorogenic acid and part of aroma substances in coffee from being damaged in the processing and storage process, and the synergistic effect performance of beneficial components in the coffee and soybean milk composition in the human body is guaranteed.

The invention relates to a macadamia nut flower and fruit retention synergistic method which comprises the following steps: in the early stage of flower bud differentiation, annularly applying slow-release granules to the root of a macadamia nut tree, and spraying fructan emulsion to the crown at the same time; in the early flowering period, a water dispersible sustained release preparation containing microencapsulated compound sodium nitrophenolate is sprayed to tree crowns of macadamia nuts, sodium alginate embedded borax sustained release microsphere suspension liquid is sprayed to leaf surfaces, and a hydrogel complexing agent containing sustained release monopotassium phosphate and amino acid is sprayed to the leaf surfaces; in the full-bloom stage, a composite slow-release emulsion containing liposome-embedded compound sodium nitrophenolate and brassinolide is sprayed to tree crowns of the macadamia nuts, slow-release gel microsphere suspension liquid of borax and amino acid is sprayed to leaf surfaces, and slow-release nano-emulsion containing beta-cyclodextrin-embedded bee wax volatile substances is sprayed to the tree crowns; in the initial fruit setting stage, sulfur-coated slow-release compound fertilizer is applied to the roots of macadamia nut trees, and ionic cross-linked calcium alginate microsphere embedded amino acid slow-release foliar fertilizer is sprayed to the leaf surfaces of the macadamia nut trees.

The present invention relates to a process for the production of microencapsulated natural preservatives and antioxidants, including extracts of walnut leaves and epicarp, the preservatives obtained and their use for preserving fat-containing foods. The natural preservative, in particular water-alcohol walnut epicarp and / or walnut leaf extract, is microencapsulated with a water-soluble polymer (HSP), such as maltodextrin or synanthrin, and wherein the microparticle comprises a channeling agent, which is a fat-soluble polymer (LSP), such as soy isolate protein or CAPSUs. These microparticles provide a controlled release action of the antioxidant and preservative extracts such that their action occurs over time.

The invention relates to the field of food science and technology, and particularly discloses a neurodevelopment food containing DHA and choline and a preparation method of the neurodevelopment food. Comprising DHA powder, a choline source, soybean peptide powder, compound amino acid, a carbohydrate source, a fat source, a vitamin mixture, a mineral mixture, prebiotics and a natural antioxidant mixture. The preparation method comprises the following steps: firstly, carrying out microencapsulation treatment on the soybean peptide powder and the DHA powder, then preparing a premix of the vitamins and the carbohydrates as well as the minerals and the fat, then mixing the microencapsulated product with other raw materials such as the compound amino acid and the choline source to obtain a primary mixture, adding the premix, carrying out high-pressure homogenization, carrying out ultrahigh-temperature instantaneous sterilization and spray drying to obtain granules, and finally, carrying out freeze-drying to obtain the feed additive. And finally performing low-humidity vacuum packaging. The product can be used for nutrition support of infant neurodevelopment and has the advantages of being high in nutrition adaptability and capable of accurately assisting healthy development of nerves. The preparation method can protect active ingredients, ensure uniform nutrition and guarantee product stability.

The invention discloses a high-stability vitamin C composition and application thereof in whitening and anti-aging cosmetics. The composition comprises a settled vitamin C compound and an upper-layer solution, the settled vitamin C compound is composed of L-ascorbic acid, chitosan, a cross-linking agent and a settling aid, the L-ascorbic acid is prepared through microencapsulation and spray drying processes, and high-density particles are formed through coating treatment; the upper-layer solution consists of cyclohexasiloxane, propylene glycol, glycerol, an antioxidant, a pH regulator and a preservative. The compound settles to the bottom of the container during standing, and only the upper-layer solution is in contact with air, so that the oxidation rate of vitamin C is remarkably reduced. The microcapsule structure slowly releases active ingredients when meeting skin moisture, and stability and efficacy are both considered. The composition is applied to essence or emulsion, solves the problems of activity loss, color change and turbidity caused by frequent uncovering of a traditional product, and realizes colorless and transparent storage period and efficient permeation whitening and anti-aging effects during use.

The application discloses a sea fennel composite intelligent microcapsule based on sequential cross-linking, a preparation method and application, and belongs to the technical field of biomedicine.The application provides the sea fennel composite intelligent microcapsule based on sequential cross-linking, aiming at the problems of chemical instability, low transdermal rate, lack of environmental responsiveness of sea fennel extract, and loose capsule wall structure of existing microencapsulation technology, and incapability of precise control.Through integration of high-controllable technologies such as microfluidic layer-by-layer self-assembly, isothermal titration calorimetry monitoring cross-linking and atomic force microscope-nano indentation characterization, three-step sequential cross-linking is adopted to construct the intelligent microcapsule which is uniform in structure, excellent in mechanical performance, has a precise pH response threshold, realizes mild and efficient encapsulation of active substances, actively senses the skin barrier state and precisely controls the release, and synergistically enhances the mechanical strength and processing resistance, thereby providing a carrier solution with high technical barriers for high-end functional cosmetics.

The invention relates to the technical field of modern preparations of medicinal and edible medicinal diets, in particular to a lily and kumquat traditional Chinese medicine ointment special for pregnant women to relieve cough and moisten the lung and a preparation process thereof, the lily and kumquat traditional Chinese medicine ointment is prepared from kumquat, Lanzhou sweet lily, Xinhui pericarpium citri reticulatae and other components, and also contains a kumquat flavonoid glycoside-cyclodextrin inclusion compound and a lily polysaccharide-zinc complex; carrying out ultrasonic extraction on flavonoid glycoside from kumquats, then carrying out inclusion with cyclodextrin, complexing lily polysaccharide with zinc, and carrying out microencapsulation on the folium eriobotryae extract; the raw materials and Chinese yam water are mixed, decocted and concentrated, active ingredients are added for compounding, and crystallization is performed after homogenization and sterilization to obtain the ointment. The ointment improves the content and stability of effective components through inclusion, complexation and microencapsulation technologies, is high in 24-hour slow release rate, quick in effect taking, high in clinical effective rate, good in taste, free of additives and suitable for pregnant women, and achieves safe and effective cough relieving.

Gummy or jelly candies with modified functional ingredients with controlled time-release. The invention relates to gummy or jelly candies (1) comprising at least one modified functional ingredient with controlled time-release, characterized in that they comprise, inside or on the surface, at least one modified functional ingredient (2), namely encapsulated and / or granulated, said gummy or jelly candies having the following constituents: at least one carbohydrate consisting of glucose syrup and / or sugar; at least one fiber; at least one protein; and at least one fruit in the form of concentrated juice or natural juice and / or at least one natural or artificial sweetener; at least one gelling agent; at least one flavoring; at least one coloring; said at least one modified functional ingredient which is a food functional ingredient; water;and at least one acid, the constituent (E) comprising an active substance or a functional ingredient proper (3) and an excipient, and being disposed of in capsules or granules (4), the excipient being a microencapsulation excipient in the case of capsules or a granulation excipient in the case of granules, said excipient being at least one of: glyceryl dibehenate, hydroxypropyl cellulose and / or ethyl cellulose, a constituent (E) having an excipient proportion of between 20 and 80% by weight.;

The application discloses a low-irritation borage oil nano-liposome, a diaper-care preparation and application of the diaper-care preparation in diaper rash of infants and young children, and belongs to the field of infant skin-care preparations. The nano-liposome is composed of the following components in percentage by weight: 0.5-2.0% of biodecolorized borage oil, 1.0-3.0% of chitosan oligosaccharide-ceramide binary membrane material, 0.3-1.0% of prebiotic skin flora regulator, 0.8-1.5% of pH 5.5 weak acid buffer system, 0.05-0.2% of edible-grade microencapsulated menthol, and the balance of sterile water for injection. The application also provides a diaper-care preparation containing the low-irritation borage oil nano-liposome, which is suitable for daily prevention and acute-phase intervention of infants and young children aged 0-36 months, has the characteristics of high bioavailability, low irritation, rapid repair and easy carrying, and has important clinical application value.

The invention relates to the technical field of cosmetics, in particular to acer truncatum moisturizing pre-makeup cream and a preparation method thereof. The acer truncatum moisturizing makeup pre-cream is prepared from the following components in parts by weight: acer truncatum seed oil, cosmetic-grade purified water, cetyl PEG / PPG-10 / 1 polydimethylsiloxane, polydimethylsiloxane, isononyl isononanoate, synthetic wax, microcrystalline wax, glycerol, 1, 2, 4-trimethyl-1, 3-pentanediol monoisobutyrate, propylene glycol monobutyl ether, propylene glycol monobutyl ether, propylene glycol monobutyl ether, propylene glycol monobutyl ether, propylene glycol monobutyl ether, propylene glycol the mannuronic acid tetrasaccharide micro-capsule is coated with 1, 3-propylene glycol / caprylyl glycol / ethylhexylglycerin, butanediol, sodium chloride, a sodium hyaluronate cross-linked polymer and temperature-sensitive polyglycerol-10 stearate. The acer truncatum seed oil containing 6% of nervonic acid serves as core lipid, temperature-sensitive type microencapsulated mannuronic acid tetrasaccharide and response type composite microcapsules are compounded, a'instant moisturizing-delayed moisturizing-barrier repairing 'triple synergistic system is constructed, the defects of a traditional technology are overcome, and the requirements of consumers for long-acting, efficient and mild pre-makeup care are met.

The present invention provides a method for manufacturing a composition comprising protease-loaded microcapsules, the method comprising microencapsulating one or more proteases by complex coacervation with one or more anionic polysaccharides. The present invention further provides a composition comprising protease-loaded microcapsules obtained by or obtainable by said method and uses thereof.

The invention discloses a method for large-scale cryopreservation of animal cells. The method comprises the following steps: carrying out first-stage amplification on to-be-preserved cells under the support of matrigel; performing second-stage amplification on the to-be-preserved cells subjected to the first-stage amplification under the support of a microcarrier; mixing the to-be-preserved cells with a serum-free cryopreservation solution to prepare a micro-capsule suspension; and putting the microcapsule suspension into a cryopreservation container to carry out cryopreservation. According to the invention, through amplification of two stages, the to-be-preserved cells have reached a high density of 109 orders of magnitude before cryopreservation, a re-amplification link in a cell recovery stage can be greatly shortened, and the to-be-preserved cells are subjected to microencapsulation through the micro-fluidic chip and then cryopreserved, so that physical protection is given to the to-be-preserved cells; the damage of ice crystals in the cryopreservation process is reduced, the survival rate after resuscitation is improved, and the microencapsulated cells can also be directly subcultured, so that the resuscitation operation is simplified; according to the cell cryopreservation device, the cryopreservation container with a large volume is used, so that the cost of cell cryopreservation is reduced.

The invention discloses a medicine formula for treating strawberry powdery mildew and a use method, and relates to the technical field of pesticides. The formula comprises bupirimate and myclobutanil as active components, a modified bentonite composite carrier as a carrier, and a plurality of auxiliary components. The preparation method comprises the steps of microencapsulation, carrier adsorption and the like. During use, the pesticide is applied when scabs appear in diseases, and the pesticide is diluted with water and then sprayed. Field tests show that the pesticide formula is high in control effect and long in lasting period and is remarkably superior to a single agent and an unmodified carrier formula, the problems that an existing agent is insufficient in drug resistance and synergistic effect, short in lasting period and the like are effectively solved, the dosage and the number of times of pesticide application can be reduced, and the risk of pesticide residues can be reduced.

The present invention relates to microencapsulation technology, in particular to microcapsules of nitrite salts, and the use of microencapsulated nitrite salts in the manufacture of animal pest lures and toxic feed mixtures, particularly in humane methods of controlling pig and rodent populations.

The application discloses a high-adhesion composite seasoning powder for pre-prepared dishes, and relates to the field of food, which is composed of a transient bonding matrix and a delayed aroma releasing particle; the mass ratio of the transient bonding matrix to the delayed aroma releasing particle is 6-8:2-4. The application solves the common problem in the industry that the adhesion of traditional powder decreases and the powder layer is easy to fall off in the process of frozen storage and reheating by constructing a binary synergistic system of the transient bonding matrix and the delayed aroma releasing particle. The pre-gelatinized potato starch and part of the acid hydrolyzed soybean protein isolate in the transient bonding matrix can quickly form a viscous paste with a stringy feeling under the activation of the water on the surface of the food, realize initial firm adhesion, and the monoglyceride microencapsulated calcium dihydrogen phosphate is released and interacts with the system when the reheating temperature rises, further strengthens the bonding network, so that the powder layer can still maintain excellent complete adhesion rate after long-term frozen storage and reheating.

This invention provides a composition suitable for lowering uric acid, comprising the following raw materials in weight percentages: 20-45% freeze-dried black goji berry powder, 20-45% chicory powder, 10-20% sour cherry powder, 5-10% celery seed extract, 2-8% turmeric extract, 1-5% vitamin E, and 0.2-1% vitamin B. This invention also provides a method for preparing the above-mentioned composition suitable for lowering uric acid and its applications. The composition of this invention, suitable for lowering uric acid, exhibits synergistic effects from its raw materials, constructing a four-dimensional regulatory mechanism of "inhibiting production + promoting excretion + anti-inflammatory and analgesic + metabolic regulation," resulting in a significant uric acid-lowering effect through multi-target synergistic action. The preparation method of this invention combines "lipid-soluble microencapsulation" and "water-soluble inclusion," improving bioavailability, extending shelf life, and enhancing palatability. All raw materials in this invention are either medicinal and edible or food-grade, with no toxic side effects from long-term consumption and high safety. This invention belongs to the technical field of health foods and functional foods.

The invention discloses a nutrition intervention composition with functions of regulating liver metabolism, promoting liver repair and resisting hepatic fibrosis. The nutrition intervention composition comprises purple perilla micro-capsule powder, a protein component, a liver peptide component, glutathione-rich yeast, a silybum marianum component, corn oligopeptide powder, oat powder and a fermentation product of germinated brown rice powder. According to the nutrition intervention composition disclosed by the invention, the microencapsulated perilla frutescens extract is organically integrated with antioxidant, regeneration-promoting and metabolism-regulating components such as a protein component, a liver peptide component, glutathione-rich yeast, a silybum marianum component and corn oligopeptide, so that the stability and bioavailability of fat-soluble active components are improved; the functions of exogenous anti-oxidation, endogenous anti-oxidation supplement, hepatocyte repair and intestinal-hepatic axis regulation are synergistically enhanced, so that the synergistic and lasting liver protection, repair and anti-fibrosis effects are realized.

An aid for the preparation of doughs for baked food products. Such aid comprises a food-grade carrier for baked food products and microcapsules containing viable lactic acid bacteria of at least one species, enclosed in a casing including at least one gellable biopolymer. The microcapsules are dispersed in said food-grade flour and have an average size comprised between 350 μm and 550 μm, preferably between 390 μm and 490 μm, more preferably between 400 μm and 460 μm, and a mechanical compressive strength comprised between 3200 g and 9000 g, preferably between 3400 g and 6000 g, more preferably between 3500 g and 5700 g. A microencapsulation process, a production process and uses of such aid is further provided, as well as to a dough, a preparation process of baked food products wherein such aid is used, and a baked food product obtainable by such preparation process.

The invention discloses a food containing high-purity alkaline compound vitamin C and a preparation process thereof, and belongs to the technical field of functional foods. The core is a microencapsulated particle prepared by using a liposome embedding technology, and the microencapsulated particle comprises alkaline vitamin C components such as sodium ascorbate and calcium ascorbate which are wrapped by a phospholipid bilayer; the shell layer is composed of foaming agents such as citric acid and sodium bicarbonate and flavor auxiliary materials. The process comprises the following steps: firstly, preparing lipidosome wrapped with vitamin C by adopting technologies such as high-pressure homogenization and the like, and then curing the lipidosome into microcapsule powder by adopting technologies such as spray drying and the like; performing wet granulation on the powder to obtain core particles; and finally, coating the shell powder on the surfaces of the inner core particles by adopting a powder coating process. Through dual protection of liposome embedding and core-shell physical isolation, the problem of chemical compatibility between an alkaline core and an acidic shell is fundamentally solved, the bioavailability of vitamin C is also improved, and meanwhile, the stability and excellent taste of the product are ensured.

The invention belongs to the technical field of pet food, and particularly relates to a nutritional composition, puffed pet food and a preparation method of the puffed pet food. The nutritional composition comprises an inner core and a coating layer coating the surface of the inner core, wherein the coating layer sequentially comprises a first coating layer, a second coating layer and a third coating layer from outside to inside; the inner core comprises a nutritional additive; the first coating layer comprises a biomolecular polymer, the second coating layer comprises a lipid substance, and the third coating layer comprises a protein. Through the structural design of the microencapsulated multilayer coating, the loss of the nutritional additive in the extrusion process and the loss of the nutritional additive in gastric acid and bile can be reduced, and the nutritional additive can be accurately released in the intestinal tract at a fixed point, so that the dosage of raw materials is reduced, and the cost is reduced.

The invention discloses an industrial recirculating aquaculture grouper mouth-opening micro-capsule feed and a preparation method thereof, and relates to the technical field of grouper mouth-opening micro-capsule feeds. The feed is composed of 85-90% of a core protein source and 10-15% of a functional additive, and has the characteristics of comprehensive nutrition, good palatability, high stability in water and the like; according to the preparation method, superfine grinding and microencapsulation technologies are adopted, micro-capsule particles are formed through a spray condensation method, low-temperature emulsification and vacuum drying processes are matched, loss of heat-sensitive components is effectively reduced, multi-stage three-dimensional mixing is achieved through an original bevel gear transmission and rotary scraper stirring system, the component mixing uniformity is improved, and the product quality is improved. According to the feed prepared through the technology, the survival rate and the growth speed of juvenile groupers are remarkably increased, the dissolution time of the micro-capsule feed is shortened, energy consumption is reduced, and meanwhile the high efficiency and the environment friendliness are achieved.

Herbicidal microcapsules containing a combination of herbicides are described. In particular, the herbicidal microcapsules include a core material comprising an acetamide herbicide and a second herbicide and a shell wall encapsulating the core material. Also described are processes for preparing the microcapsules, various herbicidal compositions containing the microcapsules, and methods of preparing and using the herbicidal compositions.

Described herein are compositions comprising a microencapsulated pheromone. Also described herein are methods of making compositions comprising microencapsulated pheromones. Also described herein are methods of controlling pests with the compositions.

The invention provides an efficient asexual propagation method of ficus pandurata suitable for simple condition application. The method comprises the following steps: (1) explant disinfection: soaking a stem with an axillary bud in a composite disinfectant containing mercuric chloride; (2) primary culture: inoculating the disinfected stem into a starting culture medium containing cytokinin and auxin for culture; (3) multiplication culture: transferring the callus formed by primary culture to a differential culture medium to induce cluster buds; (4) carrying out vector rooting, namely cutting robust buds obtained by multiplication culture, and inserting the robust buds into a rooting culture medium containing microencapsulated auxin; and (5) transplanting and hardening seedlings: treating the tissue culture seedlings with a protective solution, and transplanting the treated tissue culture seedlings to a compound matrix. The method can realize substantive transformation from a specialized tissue culture technology to basic-level production, and solves the industrialization bottlenecks such as equipment threshold and operation complexity.

The invention relates to the technical field of cable materials, in particular to a low-smoke halogen-free flame-retardant power cable material and a preparation method thereof, and the low-smoke halogen-free flame-retardant power cable material comprises the following raw materials: ethylene-vinyl acetate, low-phosphorus grafted polyvinylidene fluoride, metal hydroxide, microencapsulated ammonium polyphosphate, zinc stearate, tetra [beta-(3, 3, 5-trimethyl-1, 3, 5-trimethyl-1, 3, 5-trimethyl-1, 3, 5-trimethyl-1, 3, 5-trimethyl-1, 3 2, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid] pentaerythritol ester and polyolefin elastomer grafted maleic anhydride are used as raw materials. According to the low-phosphorus grafted polyvinylidene fluoride, a phosphate group is introduced to a polymer main chain, so that the polarity and interfacial activity of a matrix are enhanced, stable interface bonding with other components can be formed in the processing and combustion process, the dispersity and synergism of flame-retardant components are improved, and migration and precipitation phenomena are reduced; the microencapsulated ammonium polyphosphate effectively inhibits moisture absorption and water sensitivity of the ammonium polyphosphate, and the processing thermal stability is improved; and during combustion, the microcapsule shell layer can enhance the heat insulation and oxygen isolation capability, inhibit generation of toxic smoke and improve the flame retardant efficiency.

The invention relates to a high-stability sodium dichloroisocyanurate effervescent tablet for veterinary use. The effervescent tablet is mainly prepared from the following raw materials in percentage by weight: 40 to 50 percent of microencapsulated sodium dichloroisocyanurate, 25 to 30 percent of hydrophobic sodium bicarbonate, 2.0 to 3.0 percent of hydroxypropyl methyl cellulose, 1.5 to 2.5 percent of povidone K30, 1.5 to 2.5 percent of polyethylene glycol, 0.5 to 1.0 percent of magnesium stearate and 15 to 25 percent of anhydrous lactose. According to the effervescent tablet, a double-layer microencapsulation isolation technology is adopted, direct contact of acid / alkali / active ingredients is blocked, the available chlorine degradation rate and dust pollution are greatly reduced through room-temperature storage, no organic solvent is left in the preparation process, and the product meets the requirements of green veterinary drugs.

The invention relates to the technical field of agricultural chemical products and fertilizer processing, and discloses a slow-release fertilizer and a preparation method thereof. The method comprises the following steps: carrying out calcium ion replacement pretreatment on bentonite; starch and water are mixed and gelatinized to prepare slurry with specific viscosity; sequentially adding pretreated bentonite and a lignin dispersion into the slurry, adding citric acid in stages to adjust the pH value, and then adding nitrogen, phosphorus and potassium nutritive salts; a foaming agent composed of bicarbonate and microencapsulated bicarbonate is added under the specific viscosity, and then the mixture is rapidly fed into a granulation device; sequentially carrying out low-temperature, medium-temperature and high-temperature multi-section heat treatment in a granulation device, and synchronously realizing dehydration, foaming pore-forming and starch-citric acid esterification cross-linking curing; carrying out gas-phase low-dose silanization surface hydrophobic treatment on the obtained particles; and finally cooling and screening to obtain the product. Through a foaming-crosslinking coupling mechanism and surface modification, controllable slow release of nutrients is realized, and the product is environment-friendly, low in cost, low in initial release rate and high in mechanical strength.