688 results about "Gum arabic" patented technology

The invention discloses a high-temperature-resistant astaxanthin microcapsule and a preparation method and application thereof, and relates to the field of nutritional products, the microcapsule comprises: a, a core material: astaxanthin oil selected from haematococcus pluvialis or krill oil; b, double-layer wall materials: an inner-layer wall material is formed by crosslinking sodium alginate and whey protein through an ionic gel method; the outer-layer wall material is formed by electrostatic adsorption of chitosan and Arabic gum; and c, an antioxidant synergist: a rosemary extract. A double-layer embedding structure is adopted outside astaxanthin oil, sodium alginate on the inner layer is combined with whey protein to form a compact network structure through ionic bonds, chitosan on the outer layer and Arabic gum form a compact composite film on the surface of a primary embedded microsphere through electrostatic attraction, so that the double-layer embedded microcapsule has the advantages that the astaxanthin oil has good stability, and the astaxanthin oil has good stability. The temperature resistance limit of a traditional single-layer microcapsule is broken through, the stability of the astaxanthin in a high-temperature baking environment is remarkably improved, the astaxanthin can stably exist in high-temperature baked food, and the anti-oxidation effect and the like of the astaxanthin are fully exerted.

The invention relates to preparation of high-stability mascarpone cheese and application of the mascarpone cheese in baking, and belongs to the technical field of cheese preparation. The glutamine transaminase is combined with a citric acid-sodium citrate system, so that the excessive denaturation of protein is reduced, and the texture and flavor of the cheese are improved. Trehalose and xanthan gum are added for locking water and resisting freezing, and an antioxidant is combined for use, so that the freeze-thaw stability and oxidation resistance of the cheese are improved, the cheese is protected from texture change and oxidative damage in the freezing and unfreezing processes, and excellent texture and flavor can still be kept after multiple times of circulation. Arabic gum is modified through octenyl succinic anhydride, amphipathy is obtained, whey separation is prevented, whey loss is reduced, and the cheese taste is improved.

The invention discloses a rice seed pelleting agent with the effects of promoting rice seedling strengthening and cold and waterlogging resistance in the bud stage, and belongs to the technical field of seed pelleting. The rice seed pelleting agent comprises an adhesive, an inert filling substance and a specific substance. Wherein the adhesive is 20% Arabic gum, the inert filling substance is bentonite, talcum powder and clay in a ratio of 1: 6: 3, the weight ratio of the inert filling substance to the rice is 2: 1, the active components comprise charcoal and calcium peroxide, the weight ratio of the charcoal to the naked rice seeds is (0.2-0.4): 1, and the weight ratio of the calcium peroxide to the naked rice seeds is (0.6-0.8): 1. The pelleting agent can promote rice seed germination and seedling establishment and enhance the stress resistance of rice.

The invention relates to a sustained-release tablet capable of avoiding sudden release of a medicine after being taken together with an alcoholic beverage, the sustained-release tablet comprises a sustained-release tablet core and an anti-sudden-release material coating layer wrapping the sustained-release tablet core, and the anti-sudden-release material is composed of a polysaccharide substance and a cellulose derivative, the polysaccharide substance is selected from one or more of guar gum, xanthan gum and Arabic gum, the cellulose derivative is selected from one or more of hydroxypropyl methylcellulose, ethyl cellulose and hydroxyethyl cellulose, and the weight ratio of the polysaccharide substance to the cellulose derivative is 1: 1-10: 1. The sustained-release tablet disclosed by the invention has an excellent burst release resisting effect when being taken together with an alcoholic beverage, and the clinical medication safety and effectiveness of a preparation are improved.

The invention belongs to the technical field of intelligent food packaging films, and particularly relates to a nanometer composite fiber film based on vegetable protein and application of the nanometer composite fiber film. The preparation method comprises the following steps: dissolving gallic acid, an anthocyanin composite extract and rapeseed protein in deionized water, and uniformly stirring to obtain a spinning core solution; the preparation method comprises the following steps: dissolving zein in acetic acid, and then adding into water to obtain zein soluble liquid; uniformly mixing and stirring the zein solution and the Arabic gum mixed solution to obtain a shell solution; the shell liquid and the core liquid are subjected to coaxial electrostatic spinning, tin foil paper serves as a receiving base material and is collected through a rotary drum, and finally the nano-composite fiber membrane is obtained. According to the method, the color development difference of anthocyanin under different pH conditions is widened, the color development sensitivity is improved, and the freshness of food can be judged more visually according to color changes. Meanwhile, the composite membrane prepared through electrostatic spinning has larger specific surface area and higher ductility, and the mechanical performance of the composite membrane is improved.

The invention relates to the technical field of power cables, and discloses a manufacturing process of a flame-retardant anti-rat-bite cable, which comprises the following steps: step S1, mixing and granulating in an inert atmosphere; step S2, conductor pretreatment; step S3, carrying out multi-layer co-extrusion coating; s4, gradient cooling and interface strengthening are carried out, and the co-extruded cable passes through a three-section type cooling tank in sequence to be cooled; and after cooling, carrying out electron beam irradiation crosslinking treatment on the cable immediately. The cable comprises a flame-retardant sheath layer, a long-acting rat-bite-proof layer, an insulating layer and a conductor from outside to inside. According to the invention, capsaicin is coated in a gelatin-Arabic gum composite capsule wall through a microencapsulation technology to form a physical isolation barrier, and the structure effectively prevents the contact between the repellent and the external environment, so that even in high-temperature mixing and long-term use, volatile components can be prevented from escaping, and the slow release period of the effective components is ensured to cover the design life of the cable.

The invention belongs to the field of food processing, and discloses a preparation method and application of a targeted colon delivery polyunsaturated fatty acid grease microcapsule. 11S globulin in soybeans and Arabic gum are used as wall materials of the microcapsule, complex coacervation of the 11S globulin in the soybeans and the Arabic gum is induced under a certain pH condition, so that oil drops are wetted by a coacervate, a core-shell structure is formed, a coacervate phase is further stabilized through glucan to inhibit coalescence, and on the basis, the microcapsule is prepared. And tannic acid, polysaccharide and protein can form hydrogen bonds and generate hydrophobic interaction to further crosslink the condensed phase to obtain the microcapsule capable of resisting digestion of the stomach and the small intestine, so that colon delivery of polyunsaturated fatty acid is realized.

The invention relates to the technical field of food processing and functional drinks, and discloses a peptide-component-rich health-preserving liqueur which comprises the following components in percentage by weight: 50-65% of Maotai-flavor liquor, 10-20% of yellow wine, 3-7% of water, 10-20% of peptide components, 1-5% of plant extract and 5-10% of other components, the invention also discloses a preparation method of the health-preserving liqueur rich in peptide components, which comprises the following steps: S1, peptide treatment: carrying out directional enzymolysis on the peptide components, controlling the enzymolysis temperature at 40-50 DEG C and the enzymolysis time at 2-4 hours; and S2, microcapsule coating: coating the treated peptide components in cyclodextrin, gelatin or Arabic gum. By adopting a compound formula of multiple peptide components and combining technologies such as microcapsule coating, directional enzymolysis, low-temperature co-fermentation and nano-emulsification, the stability and bioavailability of the peptide components are remarkably improved, meanwhile, the flavor and taste of a wine body are optimized through a two-stage fermentation process, the wine body is more mellow and smoother, and the taste of the wine body is improved. The requirements of the market on the high-quality health-preserving liqueur are met.

The invention discloses a preparation method of a squalene and tocopherol composition microcapsule, and relates to the technical field of microcapsule preparation, and the preparation method is characterized by comprising the following steps: squalene, tocopherol and an emulsifier form a core material emulsion, Arabic gum, modified corn starch and maltodextrin are compounded to obtain a wall material emulsion, and the wall material emulsion is prepared into the squalene and tocopherol composition microcapsule. Uniformly mixing the core material emulsion and the wall material emulsion, and performing a spray drying process to obtain the squalene and tocopherol composition microcapsule. The obtained microcapsule has good thermal stability and antioxidant activity, and can well protect active components.

The invention provides a microcapsule, a molded pulp and a preparation method thereof. The preparation method of the microcapsule comprises the following steps: extracting a spice raw material by utilizing supercritical fluid to obtain essential oil; mixing essential oil with porous starch to obtain an essential oil-starch core material compound; dispersing the essential oil-starch core material compound in a composite wall material solution composed of chitosan, Arabic gum and nano cellulose to obtain an emulsion; adjusting the pH value of the emulsion to 4.0-4.2 to obtain a microcapsule suspension; and immersing the microcapsule suspension liquid into the cross-linking liquid to obtain microcapsule powder. Essential oil is subjected to supercritical extraction, the essential oil is used as a core material, porous starch is used as a carrier to form a core material compound, chitosan, Arabic gum and nano cellulose are mixed to form a composite wall material solution, and the core material compound is coated with the composite wall material solution to form a microcapsule suspension; and then the microcapsule is obtained through normal-temperature ion curing, so that efficient loading and activity protection of the essential oil can be realized, and the slow release performance is improved.

The invention relates to the technical field of nerve calming granules, and discloses sugar-free blood nourishing and nerve calming granules and a preparation method thereof.The sugar-free blood nourishing and nerve calming granules are composed of hairyvein agrimony, prepared rehmannia roots, vine of multiflower knotweed, yerbadetajo herbs, rehmannia roots, suberect spatholobus stems, cortex albiziae and sugar-free auxiliary materials; comprising microcrystalline cellulose, isomaltitol, mannitol, nano silicon dioxide, Arabic gum, hydroxypropyl methyl cellulose and polyvinylpyrrolidone. By optimizing the proportion and process conditions of the auxiliary materials and the synergistic effect of the medicinal material extract and the auxiliary materials, the humidity of the wet granules is controlled to be 30-35%, the granulation pressure is 3-6 MPa, the drying temperature is 50-55 DEG C, and finally the granules with the particle size of 200-400 microns are prepared. According to the invention, the problems of poor particle formability and insufficient disintegration performance caused by removal of sugar are overcome, rapid disintegration, good formability and stability of sugar-free particles are realized, the solubility and taste of the particles are improved, and the sugar-free granules are suitable for long-term administration by diabetics and sugar-sensitive people.

Provided in the present invention are a continuous-reforming catalyst and a preparation method therefor, belonging to the technical field of catalyst preparation. The method comprises: performing hydrothermal crystallization on a first aluminum source and a modifier to obtain aluminum oxide precursor nanofibers; mixing the aluminum oxide precursor nanofibers with a second aluminum source, and adding the mixture to a solution of a platinum-containing compound, a tin-containing compound, and a lanthanide-containing compound to prepare a catalyst precursor slurry; adding gelatin and gum arabic to the catalyst precursor slurry, uniformly mixing same to prepare a composite colloidal solution, adding the composite colloidal solution dropwise to a liquid column consisting of an upper-layer oil phase and a lower-layer curing agent solution to shape the composite colloidal solution, then after aging, drying, and calcining, obtaining an oxidized spherical catalyst; and reducing the obtained oxidized spherical catalyst to obtain an activated spherical catalyst. Because active metals can be better dispersed on the surface of the spherical catalyst, the dispersion of Pt is improved, thus improving the carbon deposition resistance and stability of the catalyst.

The invention discloses a ferrous glycinate and EDTA ferric sodium compound product and a preparation method thereof. The compound product comprises a core material and a double-layer wall material, the core material is prepared from ferrous glycinate and EDTA (Ethylene Diamine Tetraacetic Acid) ferric sodium; the inner-layer wall material is cyclodextrin and Arabic gum; the outer-layer wall material is pectin and hydroxypropyl methyl cellulose; in the compound product, the mass percentage content of the ferrous glycinate is 20%-25%; the mass percentage content of the EDTA ferric sodium is 8%-10%; the mass percentage content of the inner-layer wall material is 60%-70%; and the mass percentage of the outer layer wall material is 2-5%. The EDTA ferric sodium and the ferrous glycinate are compounded to serve as the core material, and the double-layer embedding wall material is adopted, so that the iron fishy smell of the ferrous glycinate can be effectively covered on the basis of relatively high iron absorption and utilization rate, and relatively good stability can be achieved when the iron-iron composite material is applied to a liquid preparation product.

The invention relates to the technical field of dairy product fermentation, and discloses a high-activity probiotic microcapsule suitable for dairy product fermentation and a preparation method thereof.The microcapsule is prepared from, by weight, 6.7-13.3 parts of bifidobacterium lactis, 3.3-6.7 parts of lactobacillus plantarum, 9.1-15.2 parts of Arabic gum, 13.6-22.7 parts of maltodextrin, 7.3-12.1 parts of chitosan, 15.1-30.2 parts of trehalose, 3.8-7.5 parts of glycerinum and 1.1-2.3 parts of ascorbic acid. The molecular weight of the chitosan is 80kDa, and the weight part ratio of the bifidobacterium lactis to the lactobacillus plantarum is 2: 1. In the invention, an inner core is formed through a eutectic structure of bifidobacterium lactis, lactobacillus plantarum and trehalose to protect the probiotics, so that the problems that the existing probiotics are easily influenced by the external environment in the storage and fermentation processes, the activity is reduced, and the fermentation effect of dairy products is poor are solved.

The invention relates to the technical field of soil amendments, in particular to a soil amendment containing earthworm enzymatic hydrolysate and a preparation method of the soil amendment. The soil conditioner containing the earthworm enzymatic hydrolysate comprises the following components: earthworm enzymatic hydrolysate microcapsules and adjuvant particles in a mass ratio of (2-4): 1, the earthworm enzymatic hydrolysate is prepared by performing enzymolysis on fresh earthworm homogenate by compound enzyme, and the compound enzyme comprises cellulase and protease; the wall material of the earthworm enzymatic hydrolysate microcapsule comprises at least one of chitosan, calcium alginate, gelatin and Arabic gum; the auxiliary agent comprises humic acid and inorganic natural minerals. According to the soil conditioner containing the earthworm enzymatic hydrolysate, the earthworm enzymatic hydrolysate is wrapped by the microcapsules, the retention rate of active ingredients in the earthworm enzymatic hydrolysate can be remarkably increased, and the soil condition can be further improved by matching with humic acid and inorganic natural minerals for use.

The invention relates to a counter-ion adsorption high-voltage electrostatic spraying device and application thereof to preparation of a food sugar coating, and belongs to the technical field of equipment machinery and food processing. The device comprises a material conveying system, a high-voltage electrostatic spraying system, a sugar liquid supply system, a gas supply system, a sugar liquid recovery system, a microwave vacuum drying system and a control cabinet, the sugar liquid supply system and the gas supply system are both connected with the high-voltage electrostatic spraying system, the material conveying system is arranged below the high-voltage electrostatic spraying system, the material conveying system is connected with the microwave vacuum drying system, and the sugar liquid recovery system is further arranged below the material conveying system; the above systems are all controlled by a control cabinet. Through pulse switching of a high-voltage electrostatic field and a sugar liquid material, counter-ion charge accumulation of sprayed sugar liquid is realized, namely, positive charge sugar liquid (chitosan and the like) and negative charge sugar liquid (Arabic gum, carrageenan and the like) are alternately sprayed under the high-voltage electrostatic field, so that electrostatic adsorption and directional deposition of the sugar liquid on the surface of food are realized.

The invention relates to the technical field of packaging materials, in particular to a preparation method of a food heat-preservation environment-friendly quick-transportation packaging bag. The prepared quick-transportation packaging bag sequentially comprises an outer film layer, a heat preservation layer, an aluminum foil layer and an inner film layer from outside to inside. The outer film layer and the inner film layer are made of a blend of polylactic acid, carboxymethyl starch and glycerol, the thermal insulation layer is formed by compounding a phase change capsule, silicon dioxide aerogel and a polyurethane adhesive on an aluminum foil layer, the phase change capsule takes a mixture of n-octadecane and paraffin as a core material and takes Arabic gum as a wall material, and the outer surface of the wall material is coated with a stearic acid film layer; an antibacterial coating containing microwave modified beewax, a functional additive and 3-aminopropyltriethoxysilane is sprayed on the inner surface of the inner film layer; the prepared quick-transportation packaging bag has excellent heat preservation performance and antibacterial performance, also has good degradability, is environmentally friendly and can meet multiple requirements of modern food logistics for packaging.

The invention relates to the technical field of biology, in particular to silymarin inclusion compound lipidosome and a preparation method and application thereof. The silymarin inclusion compound liposome is prepared from the following components in parts by weight: 10 to 48 parts of silymarin, 10 to 53 parts of phospholipid, 5 to 10 parts of Arabic gum and 25 to 70 parts of cyclodextrin. According to the invention, cyclodextrin and phospholipid are combined to form a double-drug-loading structure; on the basis, Arabic gum is used as a film-forming agent to form a protective film on the surface of the liposome, so that the stability of the system is further improved; the silymarin inclusion compound is encapsulated in a water phase in the liposome, and meanwhile, part of free silymarin is encapsulated in a lipid bilayer. According to the structure, the solubility and the encapsulation efficiency of the silymarin are remarkably improved, the liposome stability is enhanced, the drug release is effectively controlled, and the silymarin inclusion compound lipid is simple in preparation process and suitable for industrial production.

The invention relates to the technical field of functional antioxidants, in particular to a stability-enhanced antioxidant based on pterostilbene and a preparation method and application thereof. The pterostilbene tablet comprises the following components in percentage by weight: 10-30% of pterostilbene, 8-20% of Arabic gum, 5-15% of tocopheryl succinate, 1-5% of disodium ethylene diamine tetraacetate, 30-60% of beta-cyclodextrin, 2-8% of rosmarinic acid, 1-6% of chitosan quaternary ammonium salt, 0.5-3% of nano silicon dioxide and 2-7% of polyglycerol fatty acid ester. In the preparation process, beta-cyclodextrin and pterostilbene form an inclusion compound, the dispersity of nano silicon dioxide and chitosan quaternary ammonium salt is improved through hydrogen bonds, and tea polyphenol or ascorbyl palmitate can be added to enhance the synergistic effect. The antioxidant is high in stability, high in pterostilbene retention rate, uniform in dispersion, free of agglomeration, excellent in antioxidant activity, suitable for the fields of foods, cosmetics and medicines, simple in preparation process, low in consumption and suitable for industrial production.

The invention relates to the technical field of non-dairy creamer, in particular to acid-resistant non-dairy creamer and a preparation method thereof. The acid-resistant non-dairy creamer provided by the invention is prepared from the following components in percentage by mass: 20 to 35 percent of vegetable oil, 5 to 18 percent of modified starch, 3 to 12 percent of Arabic gum, 0.3 to 1.5 percent of fatty acid monoglyceride, 0.2 to 1 percent of sodium stearoyl lactylate, 0.2 to 0.5 percent of silicon dioxide and the balance of glucose syrup. The acid-resistant modified starch, the Arabic gum and other emulsion stabilizers are added to replace milk protein, the glucose syrup with better film-forming property is used as the wall material, and the obtained non-dairy creamer is good in acid resistance, so that the problem that the non-dairy creamer product is not acid-resistant in the prior art is solved. The result of the embodiment shows that the acid-resistant non-dairy creamer provided by the invention is completely stable under the acidic condition that the pH value is 3.5-6, and the phenomena of layering, floating or precipitating do not occur.

The invention belongs to the technical field of bacteriostatic agents, and particularly relates to lemongrass essential oil microcapsules, a preparation method thereof, a bacteriostatic agent and application. The preparation method comprises the following steps: by taking lemongrass essential oil as a core material and Arabic gum and beta-cyclodextrin as wall materials, mixing the lemongrass essential oil, the Arabic gum and the beta-cyclodextrin, and preparing the lemongrass essential oil micro-capsule by adopting a spray drying method; the mass ratio of the Arabic gum to the beta-cyclodextrin is (0.5-2): 1, and the mass ratio of the total amount of the Arabic gum and the beta-cyclodextrin to the lemongrass essential oil is (4-6): 1. And then mixing the lemongrass essential oil microcapsules with starch and ethanol, granulating and drying to obtain the antibacterial patch. The lemongrass essential oil microcapsule disclosed by the invention is stable in quality, the action time of the lemongrass essential oil is prolonged, the purpose of long-acting bacteriostasis is achieved, and the technical defect of short action time of a lemongrass essential oil antibacterial agent in the prior art is overcome.

The invention discloses a preparation method of double-coated colloidal sulfur, which comprises the following steps: (1) uniformly dispersing sulfur powder in an Arabic gum solution, and uniformly stirring to obtain a dispersion liquid; carrying out ball milling and filtering on the dispersion liquid to obtain primary wrapped colloidal sulfur; and (2) adding lipoic acid and polyhydric alcohol into the primary coated colloidal sulfur, stirring to react, and freeze-drying and crushing a reaction product to obtain secondary coated colloidal sulfur. The invention also provides the double-coated colloidal sulfur prepared by the preparation method and application of the double-coated colloidal sulfur. According to the preparation method of the double-coated colloidal sulfur, double coating is formed by using physical coating and chemical crosslinking, so that instability of single physical coating is avoided, the stability of the colloidal sulfur can be remarkably improved, and the colloidal sulfur can play a long-acting and stable role.

The invention discloses a preparation method of an enzyme preparation microcapsule with an intestinal tract slow release function. According to the method, coating wall materials in a specific proportion are adopted, the coating wall materials comprise 10-12 parts of Arabic gum, 4-8 parts of gelatin, 3-6 parts of whey protein, 8-16 parts of beta-cyclodextrin and 5-10 parts of trehalose, the coating wall materials are mixed with 10-15 parts of an enzyme agent, and the enzyme preparation microcapsule is prepared through a spray drying technology. The enzyme preparation microcapsule has excellent thermal stability and gastric juice tolerance, can maintain more than 90% of enzyme activity under the condition of 90 DEG C, and still maintains more than 65% of enzyme activity after being treated in simulated gastric juice for 4 hours. In addition, the enzyme preparation microcapsule has an intestinal directional slow-release function, the enzyme activity is quickly released after entering the intestinal tract for 15 minutes, and the peak value is reached after the enzyme preparation microcapsule enters the intestinal tract for 60 minutes. The method effectively improves the stability and bioavailability of the enzyme preparation in feed processing and animal digestive tract environment, and has good application prospect and market value.

The preparation method comprises the following steps: (1) under the action of an initiator, organic silicon resin and fluorine-containing acrylate are subjected to a free radical polymerization reaction and graft copolymerization, and fluorine-containing resin is obtained; (2) dispersing the prepared microcapsule fire extinguishing agent in fluorine-containing resin to obtain a fire extinguishing agent coating; and (3) coating and curing the fire extinguishing agent coating on the phenolic melt-blown non-woven composite material to obtain the fluorocarbon modified phenolic melt-blown non-woven composite material. According to the microcapsule fire extinguishing agent, gelatin and Arabic gum are subjected to complex coacervation to form a capsule wall, a fluorocarbon surfactant, a hydrocarbon surfactant and other materials are compounded to serve as a capsule core, when a fire disaster occurs, a fire extinguishing agent microcapsule is heated to be broken or decomposed, an efficient fluorocarbon fire extinguishing agent is released, and a good fire extinguishing effect is achieved. The fluorocarbon modified phenolic melt-blown non-woven composite material is expected to provide more reliable guarantee for fire safety, and has wide application prospects and important social significance.

The invention discloses vitamin A inclusion powder as well as a preparation method and application thereof, and belongs to the technical field of pharmaceutical preparations. The vitamin A inclusion powder comprises the following raw materials: a vitamin A active component, a capsule material, a filler, a stabilizer, a pellet core and water, the capsule material comprises Arabic gum and / or gelatin; the filling agent comprises cane sugar and maltodextrin; the preparation method of the vitamin A inclusion powder comprises the following steps: dissolving a capsule material in water to prepare a water phase; mixing the vitamin A active ingredient with the stabilizer to prepare an oil phase; mixing the water phase with the oil phase to prepare a primary emulsion; homogenizing the primary emulsion, adding a filling agent, and mixing to prepare a spray solution; performing fluidized bed spray drying on the spray solution to pellet cores to prepare the vitamin A inclusion powder; the atomization pressure of the spray drying of the fluidized bed is 2.0-4.0 bar. The vitamin A inclusion powder prepared by the invention is stable in quality, low in adhesion degree and good in long-term stability.

The invention relates to an attractant for efficient pollination of muskmelons and a preparation method thereof, and belongs to the technical field of crop bee pollination, the attractant comprises the following raw materials: 15-20 parts of a modified microcapsule compound, 10-15 parts of a saccharide active component, 4-6 parts of a solubilizer, 3-5 parts of an emulsifier and 60-70 parts of water; according to the technical scheme, hydroxypropyl-beta-cyclodextrin and Schiff alkalized mesoporous silica are combined to obtain the composite material; the composite material is firstly mixed with an essential oil compound and then mixed with a color active component, and a functional material is obtained; the preparation method comprises the following steps: coating a functional material with Arabic gum and polycaprolactone to obtain a modified microcapsule compound; and mixing the modified microcapsule compound, a solubilizer, an emulsifier, a saccharide active component and water to finally prepare the attractant for efficient pollination of the muskmelon. The slow release performance, the attraction performance and the stability of the attractant are integrally improved, the shelf life of the attractant is prolonged, the pollination efficiency of muskmelon flowers is improved, and the comprehensive performance is good.

The invention discloses a natural antibacterial anti-mosquito fabric and a preparation method thereof. Firstly, a natural antibacterial mosquito-repellent microcapsule is prepared, citronella essential oil, eucalyptus leaf essential oil and mint essential oil are compounded to serve as a core material, Arabic gum / gelatin serves as a first-layer wall material, and beta-cyclodextrin serves as a second-layer wall material. The structure is a double-wall structure, so that the slow release time of effective components can be prolonged, and the action time of a functional fabric finished by the finishing agent is longer. And modifying the natural antibacterial fiber fabric with chitosan quaternary ammonium salt to obtain the modified natural antibacterial fiber fabric with improved antibacterial performance. Finally, the natural antibacterial mosquito-repellent microcapsules are arranged on the modified natural antibacterial fabric, the natural antibacterial mosquito-repellent fabric is prepared, and the natural antibacterial mosquito-repellent fabric has a good antibacterial effect and a good mosquito-repellent effect at the same time, and is long in acting time, green, environmentally friendly, safe and efficient.

The invention relates to the technical field of eicosapentaenoic acid ethyl ester soft capsules, and discloses a composition containing eicosapentaenoic acid ethyl ester, a soft capsule type preparation, a preparation process and application, eicosapentaenoic acid ethyl ester compounded with various antioxidant auxiliary material components is used as a content, gelatin and Arabic gum are used as wall materials, and the soft capsule type preparation is prepared by compounding the eicosapentaenoic acid ethyl ester and the soft capsule type preparation. A safe and non-toxic polyhedral oligomeric silsesquioxane (POSS) framework compound which is independently researched and synthesized and has a salicylaldehyde group functional group is used as a curing agent, and safe and non-toxic titanium dioxide which is independently researched and synthesized and has the surface modified with the salicylaldehyde group functional group is used as an opacifying agent; and preparing the ethyl eicosapentaenoate soft capsule preparation by adopting a complex coacervation method. The eicosapentaenoic acid ethyl ester soft capsule type preparation prepared by the invention not only has excellent stability under high-temperature and high-humidity conditions, but also has the peroxide value of eicosapentaenoic acid ethyl ester as low as 1.02 meq / kg and the content of eicosapentaenoic acid ethyl ester as high as 98.79%.

Provided in the present invention are a spherical catalyst for hydrogen peroxide synthesis via an anthraquinone process and a preparation method therefor, belonging to the technical fields of catalytic materials and catalyst preparation. The method comprises: reacting a first aluminum source, which has P123 mixed therein, with a precipitant to obtain an aluminum oxide precursor, redispersing the aluminum oxide precursor in P123 and assembling to obtain a porous aluminum oxide precursor; dispersing the porous aluminum oxide precursor and a second aluminum source in deionized water, and adding a solution of a palladium-containing compound and an additive-containing compound to prepare a catalyst precursor slurry; adding gelatin and gum arabic to the catalyst precursor slurry and uniformly mixing same to prepare a composite colloidal solution, adding the colloidal solution dropwise to a liquid column consisting of an upper-layer oil phase and a lower-layer curing agent, and then carrying out aging, drying, calcining, and reduction to obtain the spherical catalyst. The present invention is doped with the porous aluminum oxide precursor, thereby improving the pore structure of the catalyst, increasing the utilization rate of the interior of spherical aluminum oxide, and reducing the mass transfer resistance of the reaction.

The invention relates to a preparation method of Chinese prickly ash seed oil microcapsules, which comprises the following steps: (1) weighing Arabic gum, dissolving the Arabic gum in water, and stirring to obtain a mixture a; (2) adding quinoa polypeptide into the mixture a prepared in the step (1), heating and stirring until the quinoa polypeptide is dissolved to prepare a mixture b; (3) adding an emulsifier into the mixture b prepared in the step (2), and stirring to prepare a mixture c; (4) adding Chinese prickly ash seed oil into the mixture c prepared in the step (3), and emulsifying to prepare an emulsion; and (5) performing spray drying on the emulsion prepared in the step (4) to prepare the Chinese prickly ash seed oil microcapsule. The Chinese prickly ash seed oil is microencapsulated, so that effective components of the Chinese prickly ash seed oil can be protected.