313results about How to "Good sustained release effect" patented technology

The invention discloses a production method of distiller's grain fermentation liquid fertilizer specially applied to roxburgh rose. The distiller's grain fermentation liquid fertilizer is prepared bythe step of evenly mixing 50 to 80 parts of distiller's grain fermentation extracting solution, 0.5 to 1 part of microelement, 5 to 10 parts of seaweed meal, 5 to 10 parts of natural active organism,2 to 5 parts of potassium bicarbonate, 2 to 5 parts of natural active organism and 2 to 5 parts of natural surface active agent. A preparation method of the distiller's grain fermentation extracting solution comprises the steps: evenly stirring 50 to 80 parts of distiller's grain, 50 to 150 parts of rice washing water, 1 to 2 parts of EM microflora fermentation liquid and 0.5 to 1 part of sugar, performing composting fermentation at the room temperature to obtain a distiller's grain fermentation material, stirring and extracting through a sodium carbonate water solution, filtering and performing evaporation and condensation on obtained filtrate until the density is 1.1 to 1.2 to obtain distiller's grain fermentation extracting solution. The distiller's grain fermentation liquid fertilizerdisclosed by the invention has a good use effect, meanwhile can effectively prevent pest and disease damage to the roxburgh rose and is high-efficiency environment-friendly liquid fertilizer.

The invention discloses a hydrogel compound, a preparation method and application, and belongs to the technical field of hydrogel. The hydrogel compound provided by the invention is prepared from the following raw materials: a hydrogel matrix, sodium glycerophosphate pentahydrate and a functional drug, the hydrogel matrix is prepared from chitosan, hydroxybutyl chitosan and methacrylated gelatin; the functional medicines comprise cannabidiol, tobramycin and acetylsalicylic acid; the hydrogel compound provided by the invention has excellent mechanical properties and water vapor permeability, also has excellent slow release property and wound healing ability, and can be widely applied to preparation of medicines for treating wounds. In addition, the preparation method of the hydrogel compound provided by the invention is simple to operate and beneficial to practical application.

The invention provides a hydrogel composition. The hydrogel composition is prepared from the following components in percentage by weight: 0.5 to 15 percent of an adhesion component, 0.5 to 10 percent of a moisturizing component, 0.01 to 5 percent of a bioactive component, 0.01 to 5 percent of a physical crosslinking agent, 0.01 to 2 percent of a flavoring component, 0.01 to 2 percent of an antimicrobial component and the balance of medical purified water, wherein the bioactive component comprises at least one of lipoic acid, tea polyphenol, lactic acid bacteria extract and metabiotics; the antimicrobial component comprises at least one of copper ions, benzyl alcohol, p-hydroxyacetophenone, sodium methyl hydroxybenzoate and sodium ethyl hydroxybenzoate. According to the hydrogel composition disclosed by the invention, the low-concentration antimicrobial component is introduced, so that the antimicrobial component has more stable and effective bactericidal activity and can be more stably adhered to a wound, and the hydrogel composition can have better antibacterial performance and a function of promoting wound healing without additionally adding antibiotics.

The invention provides a W1 / OG / W2 type multiple emulsion based on a micro-fluidic chip and a preparation method, and belongs to the technical field of multiple emulsions. The intermediate phase of the multi-emulsion is separated by the oil gel phase OG, so that the exchange of internal and external two-phase substances is thoroughly prevented, the reaction of the internal and external two-phase substances is avoided, the substance compatibility is enhanced, and meanwhile, the aqueous phase thickener is added into the hydrogel phase W2, so that the viscosity of the hydrogel phase W2 is increased, the aggregation of liquid drops is delayed, and the stability of the emulsion is improved. According to the method, the active encapsulant can be encapsulated in the microdroplet to form a protective layer, so that the contact with air and the external environment is reduced, the encapsulant in the water-in-oil phase W1 / O is effectively prevented from being oxidized, the stability and the slow-release effect of the encapsulant are improved, and the storage life is prolonged. The multi-emulsion has wide applicability and can be widely applied to the fields of food, medicines, health care products and the like.

The invention discloses a preparation method of an antibacterial PEEK material for bone implantation. The preparation method comprises the following steps: carrying out sand blasting treatment on the surface of a PEEK sample; immersing the sandblasted PEEK sample into a mixed solution containing concentrated sulfuric acid and hydrogen peroxide, and carrying out chemical sulfonation treatment; immersing the sulfonated PEEK sample into a dopamine solution, so that dopamine is oxidized and self-polymerized on the surface to form a PDA coating; immersing the PEEK sample with the PDA coating into an antibacterial drug solution, so that the antibacterial drug is loaded on the surface; carrying out heat treatment on the PEEK sample loaded with the antibacterial drug; thoroughly cleaning the sample, removing uncombined antibacterial drug molecules, and drying; through sand blasting treatment and sulfonation treatment, the surface roughness and hydrophilicity of the PEEK material are remarkably improved, and favorable conditions are provided for adhesion of a dopamine coating and an antibacterial agent; due to introduction of the dopamine coating, the biocompatibility and the adhesion of the material are enhanced, and the dopamine coating also serves as an effective carrier of antibacterial drugs, so that the antibacterial function is maximized.

The invention relates to the technical field of polishing solutions, in particular to an efficient and environment-friendly chemical polishing solution and a preparation method thereof. The chemical polishing solution comprises the following raw materials in percentage by weight: 5%-8% of a nano metal abrasive, 2%-4% of a silicon oxide abrasive, 2%-10% of an oxidizing agent, 1%-5% of a complexing agent, 0.05%-0.5% of a corrosion inhibitor and the balance of deionized water. The chemical polishing solution further comprises a pH regulator, and the pH of the chemical polishing solution is regulated to 7.5-8.5 by adopting the pH regulator. The chemical polishing solution disclosed by the invention adopts environment-friendly raw materials, shows a good polishing effect when being used for precision machining of the monocrystalline silicon wafer, and is high in material removal efficiency, and the polished silicon wafer is smooth in surface and free of damage.

The invention discloses a uric acid reducing apigenin cyclodextrin inclusion compound liposome and a preparation method thereof. The uric acid reducing apigenin cyclodextrin inclusion compound liposome is prepared from the following components in parts by weight: 1 part of apigenin, 2 to 50 parts of beta-cyclodextrin, 0.8 to 30 parts of phospholipid and 0.1 to 10 parts of surfactant. According to the invention, apigenin is included in beta-cyclodextrin to obtain the apigenin cyclodextrin inclusion compound, and the water solubility of apigenin can be improved and the molecular volume can be increased through a cyclodextrin inclusion method to reduce the ability of apigenin to penetrate through a phospholipid bilayer; and the apigenin cyclodextrin inclusion compound is encapsulated in the liposome to obtain the apigenin cyclodextrin inclusion compound liposome, so that the stability of the liposome is fundamentally improved, and the problem of liposome drug leakage in a liquid state is solved. The whole water solubility of the apigenin cyclodextrin inclusion compound liposome provided by the invention is improved, the apigenin cyclodextrin inclusion compound liposome has good stability and slow release effect, the bioavailability of apigenin is improved, and the uric acid reducing effect is obviously superior to that of untreated apigenin.

The invention relates to the technical field of bactericides, and discloses an oilfield flooding bactericide containing plant bactericidal components and a preparation method thereof. The preparation method comprises the following steps: loading the plant-based traditional Chinese medicine extract and the isothiazolinone-based corrosion inhibitor on the silver-loaded cyclodextrin metal organic framework to prepare an antibacterial agent / silver-loaded cyclodextrin metal organic framework composite material, and mixing the antibacterial agent / silver-loaded cyclodextrin metal organic framework composite material with methyl methacrylate to prepare the antibacterial agent / silver-loaded cyclodextrin metal organic framework composite material. The bactericide obtained by carrying out copolymerization reaction on modified hydroxyquinoline, vinyl quaternary phosphonium salt and methacrylic acid through an in-situ polymerization method can effectively kill and inhibit the breeding of sulfate reducing bacteria and other bacteria in oilfield reinjection water, and has a certain corrosion inhibition effect.

The invention discloses a bullfrog extracted biological collagen composition and a preparation method thereof in the technical field of collagen. The bullfrog extracted biological collagen composition comprises the following components in parts by weight: 1-1.5 parts of hydrophobic bullfrog source collagen peptide, 0.6-0.8 part of hydrophobic bullfrog source elastin peptide, 1-1.5 parts of polyglutamic acid and 1-1.5 parts of polylysine. Collagen and elastin in bullfrog skin and bullfrog cartilage are extracted in a combined mode through a three-enzyme co-production method, and after bullfrog source collagen peptide and bullfrog source elastin peptide are subjected to hydrophobic modification, polyglutamic acid and polylysine are added to form a collagen combination. The stability, the medicine carrying capacity and the slow release capacity of the composition can be improved.

The invention relates to the technical field of foam drainage agents, and particularly discloses a salt-resistant foam drainage agent for natural gas exploitation and a preparation method of the salt-resistant foam drainage agent. The preparation method of the salt-resistant foam drainage agent for natural gas exploitation comprises the following steps: (1) dissolving modified amine oxide, mixing with silicon dioxide hollow spheres, carrying out reduced pressure treatment for 0.5-1 hour, and standing at normal pressure to obtain a mixture marked as M; and (2) crushing glass fibers, dispersing with chloroform, mixing with No.58 paraffin, treating at 75-80 DEG C for 10-30 minutes, adding a mixed cross-linking agent, stirring for 2-2.5 hours, keeping the temperature at 60-65 DEG C to obtain a film sealing solution, filtering M to take a precipitate, mixing with the film sealing solution, standing for 0.5-1 hour, filtering again to take a precipitate, and cooling to obtain the salt-resistant foam drainage agent for natural gas exploitation. The salt-resistant foam drainage agent for natural gas exploitation has the advantages of good foaming effect and long acting time.

The invention relates to mussel mucin-hyaluronic acid nanogel and a preparation method and application thereof and a pharmaceutical composition, and belongs to the field of biomedical materials, the structural formula of the mussel mucin-hyaluronic acid nanogel is # imgabs0 #, Mussel mucin is a mussel mucin molecule, and n is the number of repetitive units. The mussel mucin-hyaluronic acid nanogel can be swelled in a water-based medium to form a three-dimensional space net-shaped structure, pharmaceutical active molecules are better entrapped, lysine and dopa groups in the structure can be tightly combined with the surface or mucous membrane of an organism through electrostatic interaction, hydrogen-bond interaction and oxidative crosslinking, so that the bioavailability of the mussel mucin-hyaluronic acid nanogel is improved, and the bioavailability of the mussel mucin-hyaluronic acid nanogel is improved. The carrier has good biological adhesion, can prolong the residence time of the carrier on an organism or mucous membrane surface, and promotes drug absorption. The mussel mucin-hyaluronic acid nanogel can also be used as a drug storage cavern, so that the slow release effect of drugs is improved, the action time of the drugs is prolonged, and the administration frequency is reduced.

The invention discloses a slow-release phosphorus removal material and a preparation method and application thereof, and belongs to the technical field of sewage treatment, the slow-release phosphorus removal material comprises the following components by mass: 40-55 parts of calcium peroxide, 25-35 parts of a binder, 2-5 parts of bentonite, 5-20 parts of calcined oyster shell powder, and 10-25 parts of iron-loaded modified red soil; the binder is prepared from Portland cement, polyacrylic acid and hydroxypropyl methyl cellulose ether according to the mass ratio of 1: (0.2 to 1): (0.1 to 0.8). Under the synergistic effect of the calcium peroxide, the binder, the bentonite, the calcined oyster shell powder and the iron-loaded modified red soil, the filter material can be used as a phosphorus removal filter material, can be directly used as a filter material of a filter tank, a wetland and the like independently or in combination with quartz sand, gravel and other filter bed filter materials, can permanently remove phosphorus in surface water, can also be directly put into rivers, lakes and ponds, and can be used as a filter material of a filter tank, a wetland and the like. In addition, the preparation cost is low, and wide application prospects are achieved.

The invention relates to the technical field of sustained and controlled release fertilizers, in particular to a soil-improving disease-resistant sustained and controlled release fertilizer and a preparation method thereof. The preparation method comprises the following steps: (1) preparation of the nutrient core: weighing an organic fertilizer, an ammonium nitrogen fertilizer, a phosphate fertilizer, a potash fertilizer, a biological regulator, chelated medium trace elements and modified attapulgite, uniformly mixing, and granulating to obtain the nutrient core; (2) covering an organic polymer coating layer: dissolving polylactic acid in a solvent to form a composite solution, spraying the composite solution on the surface of the nutrient core, and drying to obtain an organic polymer coated nutrient core; and (3) covering a mineral coating layer. The outermost layer of the soil-improving disease-resistant controlled-release fertilizer provided by the invention is the mineral coating layer, the mineral coating layer can be gradually disintegrated after being applied to soil, mineral components can improve the physical structure of the soil, regulate the acid-base property of the soil and increase the content of organic matters in the soil after entering the soil, and inorganic and organic nutrients are slowly released into the soil through the organic polymer coating layer; nutrient substances are continuously supplied, and common diseases of the corn are prevented and controlled.

The invention relates to the technical field of agricultural fertilizers, in particular to a functional sustained and controlled release fertilizer for regulating and controlling productivity of salinized soil and a preparation method thereof. The slow / controlled-release fertilizer is prepared by compounding a fertilizer matrix, a soil conditioner, a water-retaining agent and humic acid, wherein the fertilizer base body comprises a core material, and the surface of the core material is sequentially coated with a chelating layer and a wall material layer from inside to outside; the core material comprises the following components in parts by weight: ammonium sulfate, monoammonium phosphate, potassium sulfate and trace elements; the chelating layer is sodium ethylene diamine tetracetate; and the wall material layer is sodium alginate. The sodium alginate coating material adopted by the fertilizer can control the fertilizer to be slowly released in soil, and after the fertilizer is completely released in the soil, the adopted coated fertilizer is non-toxic and harmless in the soil and is easy to degrade. The chelating layer is arranged between the core material and the wall material and can be chelated to form a connecting structure of the inner layer and the outer layer, so that the strength of the fertilizer matrix particles is improved, the particles have stability, and the slow release effect is favorably exerted.

The invention provides a preparation method of a neutralizing corrosion inhibitor, which belongs to the technical field of metal corrosion inhibition, and comprises the following steps: uniformly mixing imidazoline quaternary ammonium salt and thiourea, reacting at high temperature, cooling, and recrystallizing to obtain thiourea-based imidazoline quaternary ammonium salt, namely a corrosion inhibition component; 4-pyridyl amidoxime, silane and distilled water are mixed and then heated and stirred, an isocyanate cross-linking agent, octadecylamine polyoxyethylene ether and ammonia water are added, stirring continues, and a neutralizing component is obtained; the neutralization corrosion inhibitor is obtained by uniformly stirring the corrosion inhibition component, the neutralization component, the lignosulfonate and the distilled water. According to the technical scheme provided by the invention, the problem that an existing neutralizing corrosion inhibitor easily generates crystalline salt in an acid environment to promote under-scale corrosion is solved, and the overall neutralizing corrosion inhibition capability is also improved.

The invention provides a slow-release fertilizer for saline-alkali soil and a preparation method thereof, and the slow-release fertilizer comprises a granular core which is formed by co-granulation of a basic fertilizer composition and charcoal powder; the first coating layer is formed on the surface of the granular core by a mixture consisting of gamma-polyglutamic acid or a derivative thereof and sodium alginate; the second coating layer is formed on the surface of the first coating layer by sulfur; and the third coating layer is formed on the surface of the second coating layer by an anti-blocking agent. The slow-release fertilizer for the saline-alkali soil is strong in functionality and good in slow-release effect, improves the granular structure of soil, improves the utilization rate of water and fertilizer, synergistically reduces the pH of the saline-alkali soil, increases the content of nutrients and organic matters in the soil, promotes the growth and development of plants, and improves the micro-ecology of the soil.

The invention relates to the technical field of nano-liposomes, and discloses cardamonin nano-liposomes for promoting transdermal absorption and a preparation method and application thereof, the cardamonin nano-liposomes comprise an inner phase and an outer phase, the inner phase comprises the following raw materials in parts by weight: 5-10 parts of cardamonin, 2-10 parts of lecithin and 5-20 parts of grease, and the outer phase comprises the following raw materials in parts by weight: 5-10 parts of cardamonin, 2-10 parts of lecithin and 5-20 parts of grease; the stabilizer is carboxymethyl chitosan; an external phase: 0.1-5 parts of a surfactant, 0.1-3 parts of a stabilizer, 10-20 parts of short-chain alcohol and 44.9-80 parts of water; the mixture of the external phase and the internal phase is sequentially subjected to homogenization treatment and microjet homogenization treatment, and the cardamonin nano-liposome for promoting transdermal absorption is prepared. The cardamonin nano-liposome for promoting transdermal absorption provided by the invention is a flexible liposome, and can moisten skin and reduce moisture loss on the skin surface; the transdermal amount and retention amount of the carried components are obviously improved; the permeability of the cardamonin to the skin cell membrane is enhanced.

The invention discloses a lignocellulose modified ammonium polyphosphate hydrogel slow-release fertilizer and a preparation method thereof, and belongs to the technical field of slow-release fertilizers, the preparation method comprises the following steps: adding biomass into an alkaline solution for heating treatment, adding biomass into an acidic solution for heating treatment, and collecting a reaction solution; adding urea into the reaction solution, reacting under a heating condition to prepare an ammonium polyphosphate-lignocellulose mixture, grinding the ammonium polyphosphate-lignocellulose mixture into powder, and then adding the powder into a potassium persulfate solution to prepare a suspension; the preparation method comprises the following steps: adding potassium hydroxide, acrylic acid, acrylamide, urea and MBA into water under heating and nitrogen protection to obtain a mixed solution; mixing the suspension liquid with the mixed solution, heating and reacting under nitrogen and stirring conditions, dicing and drying to prepare the slow-release fertilizer which has good water and fertilizer retention capacity, relatively strong slow-release capacity, soil structure improvement capacity and heavy metal adsorption potential, and effectively solves the problems of poor water retention capacity and poor soil improvement effect in the prior art.

The invention belongs to the technical field of metal adsorption material preparation, and particularly relates to a preparation method of an attapulgite composite cellulose hydrogel material, which comprises the following steps: (1) uniformly dispersing acid modified attapulgite in water, then adding sodium alginate and polyvinyl alcohol, heating and stirring; (2) adding sodium carboxymethyl cellulose, and continuously stirring to obtain a mixed solution; and (3) injecting the mixed solution into a mold by using an injector, freeze-thawing, freeze-drying, immersing into a CaCl2 solution, cross-linking, washing for multiple times, and freeze-drying again to obtain the attapulgite composite cellulose hydrogel material. Sodium alginate, polyvinyl alcohol, sodium carboxymethyl cellulose and acid modified attapulgite in a proper proportion are matched with a multiple freeze drying method to construct a three-dimensional structure with multiple chemical adsorption, high specific surface area, long diffusion channel and abundant pores, so that the adsorption efficiency and the adsorption capacity of the composite material are improved, and various application requirements are met.

The present invention proposes a Chinese medicine composition for treating allergic rhinitis, and a preparation method and application thereof, which belong to the field of pharmaceutical technology. Ag-graphene oxide is adsorbed on in vitro proliferated γδT cells, a Chinese medicine fermentation product obtained by fermentation and extraction of Xanthium sibiricum, Astragalus, Poria, Magnolia officinalis, and Mentha is prepared, berberine and quercetin are prepared into eutectic powder, the three are mixed and added into water, probiotics, carboxymethyl chitosan, poloxamer 407 and poloxamer 188 are added, and mixed evenly to prepare a Chinese medicine composition for treating allergic rhinitis, which has a good effect of improving allergic rhinitis, adopts a method of combining traditional Chinese and Western medicine, reduces inflammatory response, enhances the immune function of patients, improves the clinical symptoms of patients with allergic rhinitis, reduces the long-term recurrence rate, reduces the use of drugs, improves the quality of life, and reduces the risk of developing asthma, and has broad application prospects.

The invention discloses a preparation method of a negundo chastetree fruit microcapsule and application of the negundo chastetree fruit microcapsule in mosquito-repellent finishing of fabrics. Vitex negundo essential oil is used as a core material, an emulsifier and a wall material are investigated, it is determined that Tween-80 is used as the emulsifier, gelatin and sodium alginate are used as the wall material, a complex coacervation method and calcium chloride cross-linking curing are adopted, and freeze drying is performed to obtain the Vitex negundo microcapsule. By optimizing the emulsifier addition amount, the total wall material concentration, the core-wall ratio and the like, the embedding rate of the prepared rhizoma polygonati microcapsule can reach 75% or above, the particle size is smaller than 2 microns, and the rhizoma polygonati microcapsule can be stably and uniformly dispersed in water. The negundo chastetree fruit microcapsule is prepared into a finishing liquid which is used for after-finishing of fabrics, can endow the fabrics with good mosquito repelling performance, and is fresh in smell and free of anaphylactic reaction.

The invention relates to the technical field of fertilizers, and particularly discloses a biological fertilizer water retention agent, a preparation method thereof and a compound fertilizer. The preparation method of the biofilm fertilizer water retention agent comprises the following steps: preparing loaded microorganisms; adding polyglutamic acid and glucan into water, uniformly stirring, adjusting the temperature of the system to 50-70 DEG C, cooling, adding the loaded microorganisms, and uniformly mixing to obtain a premix a; adding cross-linked carboxymethyl cellulose and silica fume into the premix a, and uniformly mixing to obtain a premix b; and uniformly mixing guar gum, polyvinyl alcohol and carboxymethyl cross-linked dextran gel, adjusting the water content of the system, stirring, cooling, adding into the premix b in a stirring state, stirring, and carrying out post-treatment to obtain the biofilm fertilizer water retention agent. The invention discloses a compound fertilizer and a preparation method thereof. Through the synergistic effect of various effective components, the water-retaining and fertilizer-retaining capacities of soil are improved, and the water-retaining and fertilizer-retaining agent is used for compound fertilizers, promotes plant growth and is suitable for large-scale popularization and application.

The invention provides a cow dung organic controlled-release fertilizer and a preparation method thereof. The preparation method comprises the following steps: preparing porous cow dung biochar; preparing a cow dung organic fertilizer; uniformly mixing and stirring the porous cow dung biochar, the natural fibers in the treated cow dung and the cow dung organic fertilizer, and extruding and granulating in a granulator at normal temperature; drying to obtain the composite porous cow dung biochar with the sea urchin structure; preparing a hydrogel membrane solution, soaking the composite porous cow dung biochar with the sea urchin structure in the hydrogel membrane solution, and drying to obtain the cow dung organic controlled-release fertilizer. The cow dung organic controlled-release fertilizer formed by wrapping the cellulose hydrogel film layer with the composite porous cow dung biochar with the sea urchin structure is adopted, the porous cow dung biochar retains organic matter and nutritional ingredients in cow dung, and meanwhile moisture and pathogenic microorganisms are reduced through the carbonization process; the organic fertilizer is suitable for release and utilization of long-acting nutrient substances, the cow dung organic fertilizer is slowly released and utilized firstly, and the cow dung biochar is released and utilized for a long time.

The invention relates to a preparation method of a cannabidiol nano-lipid carrier, in particular to a preparation method of a cannabidiol nano-lipid carrier with a transdermal absorption function. The invention aims to solve the problem that the existing cannabidiol lipid carrier cannot have high water solubility and high transdermal absorption function at the same time, and is poor in stability and easy to irritate skin. The method comprises the following steps: 1, weighing raw materials; 2, preparing an oil phase; 3, preparing a water phase; 4, mixing; 5, performing ultrasonic homogenization; 6, cooling; and 7, removing impurities. The preparation method is used for preparing the cannabidiol nano-lipid carrier with the transdermal absorption function.

The invention discloses an aerosol generating product containing a paper-based tobacco shred ordered aerosol generating substrate and a preparation method of the aerosol generating product. The aerosol generating product comprises outer wrapping paper (1), and the aerosol generating substrate (2), a supporting piece (3), a composite cooling filtering piece (4) and an end cavity piece (5) which are positioned in the outer wrapping paper (1), the aerosol generating substrate (2) is orderly arranged paper-based hair tobacco shreds, the paper-based hair tobacco shreds comprise a paper base body (22), functional substance layers (23) are arranged on the two faces of the paper base body (22), and coating layers (24) are arranged on the outer sides of the functional substance layers (23). The surface of the paper base body (22) with the functional substance layer (23) is coated, and the coating layer can improve the physical strength of the paper-based tobacco shred from multiple aspects, so that the problems that the filling amount of the paper-based tobacco shred is difficult to control, and the paper-based tobacco shred becomes sticky and low in stiffness after absorbing moisture, so that the ordered cigarette core rod becomes soft are solved.

The invention relates to the field of fertilizers, in particular to a bioactive fertilizer capable of improving soil and a preparation method thereof. Compared with a conventional starch coating layer, starch is modified in the coating layer, the stability and the slow release effect of the coating layer are improved, meanwhile, a certain amount of nitrogen phosphorus potassium salt is added, and nutrients needed by plants in the early stage can be provided. The prepared fertilizer is moderate in slow-release effect, the slow-release days reach about 4 months, the fertilizer can adapt to plant growth, and the growth requirements of plants are fully met.

The invention belongs to the technical field of sustained-release microcapsules, and particularly discloses a ganoderma triterpenoid sustained-release microcapsule and a preparation method thereof.Bovine serum albumin and octenyl succinic anhydride modified starch are selected to prepare a Maillard product through a carbonyl ammonia condensation method to serve as a wall material, and a core material ganoderma triterpenoid is well wrapped in the wall material; the Maillard reaction product and the ganoderma triterpenoid are crosslinked, the structure of the freeze-dried microcapsule is not damaged, and the prepared granular microcapsule is complete in structure, high in embedding rate and good in stability. The sustained release performance of the ganoderma triterpenoids as an embedding material is improved, the water solubility of the ganoderma triterpenoids is improved, the dissolution speed and the intestinal mucosa permeability of the ganoderma triterpenoids are improved through conjugation change of polymer characteristics, the retention time is prolonged through biological adhesion, the oral bioavailability of the ganoderma triterpenoids is improved, and the bioavailability of the ganoderma triterpenoids is improved. The human body absorption and utilization degree of the ganoderma triterpenoids can be obviously improved.

The invention relates to the technical field of organic fertilizers, and discloses a preparation method of a water-retaining slow-release bio-organic fertilizer, which is characterized in that water-retaining material powder is prepared from nano silicon dioxide, gamma-methacryloxypropyltrimethoxysilane, acrylic acid, attapulgite and the like as raw materials. The preparation method comprises the following steps: blending furfural residues and pig manure biogas residues into a mixed matrix according to a certain proportion, adding a microbial decomposition bacterium agent, nitrogen-fixing bacteria, phosphate solubilizing bacteria and the like into the mixed matrix, fermenting, crushing, drying and sieving to obtain bio-organic fertilizer particles. The water-retaining slow-release bio-organic fertilizer is obtained by taking the bentonite as an inner core carrier, taking a bentonite slow-release material as an inner coating film and taking water-retaining material powder as an outer coating film through a rotary drum coating process, and the prepared bio-organic fertilizer has relatively good water-retaining performance and slow-release performance.

The invention provides a preparation method of a biological functional agent containing bioactive components, which comprises the following steps: dispersing the bioactive components in water; adding the zeolite-loaded titanium dioxide composite material, absolute ethyl alcohol, isopropyl triisostearoyl titanate and polyvinylpyrrolidone into the mixed solution, stirring at the temperature of 65-75 DEG C to obtain a mixed solution containing bioactive components, stirring for 80-100 minutes, and centrifugally drying to obtain the composite material. According to the preparation method of the biological functional agent containing the bioactive components, the loading capacity of the bioactive components on the carrier is improved, the stability of the bioactive components is improved, and the slow release effect is enhanced, so that the preparation efficiency and performance of the biological functional agent are improved; wide prospects are provided for application in the fields of medicines, cosmetics, environmental protection and the like.

The invention discloses an aerosol generating product containing a paper-based tobacco shred disordered aerosol generating substrate and a preparation method of the aerosol generating product. The aerosol generating product comprises outer wrapping paper (1), and the aerosol generating substrate (2), a supporting piece (3), a composite cooling filter piece (4) and an end cavity piece (5) which are positioned in the outer wrapping paper (1), the aerosol generating substrate (2) is mixed tobacco shreds which are arranged disorderly, and the mixed tobacco shreds comprise paper-based hair tobacco shreds and natural tobacco shreds. The paper base body (22) serves as a carrier, the two faces of the paper base body (22) are coated with the functional substance layers (23), aroma and smoke are generated through functional substances in the functional substance layers, the smoking quality is guaranteed, further, coating layers (24) are formed on the outer sides of the functional substance layers (23), so that the physical strength of the paper-based hair tobacco shreds is guaranteed, and the smoking quality is improved. Therefore, the problems that the filling amount of the mixed tobacco shreds is difficult to control, the tobacco shred breakage rate is high, and tobacco shred falling is prone to occurring at the end of the tobacco core section are solved.