186 results about "Porous starch" patented technology

According to the high-gel-quality minced fillet gel and the preparation method thereof, frozen minced silver carp is unfrozen and then subjected to ice-temperature vacuum dehydration and ultrahigh-pressure homogenization treatment, a myofibrillar protein molecular chain is promoted to stretch through mild shearing force, and a TG enzyme acting site is fully exposed; then chopping and mixing with table salt, starch, TG enzyme coated porous starch-curdlan / sodium alginate oligosaccharide nanosphere dispersion liquid and ice water at low temperature, shielding TG enzyme by nanospheres through a core-shell structure at low temperature so as to avoid advanced activation, and accurately releasing during heating so as to catalyze crosslinking; finally, step-by-step heating gelation is performed, so that the strength and uniformity of minced fillet gel are remarkably improved, the flavor is improved, and the method is suitable for industrial production.

The invention discloses porous starch and a preparation method and application thereof, and the preparation method comprises the following steps: (1) starch pretreatment: taking corn starch as a raw material, fully mixing the corn starch with a calcium chloride solution, performing magnetic stirring for shelling and gelatinization treatment, after the shelling and gelatinization are stopped, centrifuging to take precipitate, washing and drying to obtain shelled starch; (2) enzymolysis treatment: preheating the shelled starch and a citric acid-disodium hydrogen phosphate buffer solution in a constant-temperature water bath to obtain a starch suspension; and adding a compound enzyme into the starch suspension for enzymolysis, centrifuging after enzymolysis is stopped, taking precipitate, drying, and crushing to obtain the porous starch. Compared with the prior art, the specific solution volume and oil absorption rate of the porous starch obtained by the method are obviously increased, and the dissolution rate of the porous starch in water is also obviously increased.

The invention discloses a preparation method of a V-shaped porous starch-grease inclusion compound. According to the method, V-type porous starch is used as a raw material and is blended with grease to prepare the starch-grease inclusion compound. The method specifically comprises the following steps: dispersing grease in a 60% ethanol aqueous solution, adding V-shaped porous starch, magnetically stirring for 2 hours at 25-30 DEG C, centrifuging the solution, washing the obtained precipitate twice by absolute ethyl alcohol, freeze-drying the washed precipitate, grinding, and sieving by a 100-mesh sieve, thereby obtaining the V-shaped starch-grease inclusion compound. According to the method, 60% ethanol is adopted as a solvent, efficient embedding of the grease is achieved under the normal temperature condition, and the adverse effect of a traditional heat treatment method on the oxidation stability of the grease is avoided. According to the method, on the basis of a spiral cavity structure and a honeycomb-shaped pore structure of V-shaped porous starch, grease is efficiently embedded in an inner cavity of the starch by utilizing a blending adsorption method, the content of free grease on the surface is reduced through the synergistic effect of physical adsorption and intermolecular acting force, and the stability of grease embedding is improved.

The invention relates to the technical field of pharmaceutical preparations, in particular to a folic acid tablet with low oxidation impurities and a preparation method thereof, and discloses the folic acid tablet with low oxidation impurities, which comprises the following components: a mixture of folic acid and an antioxidant, a porous starch; wherein the mass ratio of the mixture of the folic acid and the antioxidant to the porous starch is (1-2): (3-4); the mass ratio of the folic acid to the antioxidant is 1: (1-3); the invention discloses a folic acid tablet with low oxidation impurities and a preparation method thereof, folic acid and an antioxidant tert-butylhydroquinone are mixed and crushed together, the folic acid can be fully wrapped by the antioxidant, oxidation of the folic acid is prevented or delayed, the particle size D90 of the mixture is controlled to be less than 5 [mu] m, then the mixture is fully mixed with porous starch, and the folic acid tablet with low oxidation impurities is prepared. By utilizing the porosity of the porous starch, the folic acid and the antioxidant can be adsorbed in concave holes of the porous starch, and meanwhile, the contact of the folic acid with oxygen and light is reduced, so that the generation of oxidized impurities in the long-term placement process is reduced.

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 discloses a high-load starch-based steady-state morinda citrifolia enzyme spray-dried microcapsule and a preparation method thereof, belongs to the technical field of food spray drying, and provides the high-load starch-based steady-state morinda citrifolia enzyme spray-dried microcapsule which comprises morinda citrifolia enzyme and modified starch N-zorbit M / porous starch. The preparation method comprises the following steps: stirring and mixing the morinda citrifolia enzyme and the wall material according to different proportions to obtain a morinda citrifolia enzyme and wall material mixed solution; and carrying out spray drying on the morinda citrifolia enzyme mixed solution to obtain the high-load starch-based morinda citrifolia enzyme spray-dried microcapsule. Modified starch N-zorbit M / porous starch is used as a wall material to prepare the high-load morinda citrifolia enzyme spray-dried microcapsule, so that the volatile unpleasant odor of morinda citrifolia enzyme is reduced, and the total phenol content and the oxidation resistance of the morinda citrifolia enzyme are improved.

The invention relates to a gas-phase silicon-carbon negative electrode material of a porous carbon base material, which comprises the following steps: preparing porous starch, preparing a silicon / porous carbon composite material, preparing a micron porous Mg2Si negative electrode, preparing a nano porous silicon / carbon composite negative electrode, performing carbon coating by a porous silicon acetylene CVD (Chemical Vapor Deposition) method, and controllably preparing the gas-phase silicon-carbon negative electrode material of the porous carbon base material. The gas phase precipitation method and the alloying method are creatively combined, the prepared negative electrode material has higher specific capacity and energy density, rapid transmission of lithium ions is facilitated, the stability of an electrode structure is kept, and the negative electrode material has the advantages of being good in cycle performance, high in safety, high in energy density and the like.

The invention relates to the technical field of food processing, in particular to a high-fiber rice cake and a preparation method thereof.The high-fiber rice cake is prepared from, by mass, 60-75 parts of rice flour, 25-40 parts of modified porous starch, 2-3 parts of saccharomyces cerevisiae, 10-20 parts of white granulated sugar, 6-10 parts of chequer-shaped indocalamus leaf fiber extract, 2-4 parts of fructo-oligosaccharide and 30-40 parts of water; the preparation method comprises the following steps: S1, uniformly mixing the saccharomyces cerevisiae, the white granulated sugar and the water according to the formula ratio to obtain saccharomyces cerevisiae liquid; s2, adding the modified porous starch into a yeast liquid, uniformly stirring, then adding the remaining raw materials, continuously stirring until the mixture is pasty, and meanwhile, performing ultrasonic treatment for 10-30 minutes to obtain rice milk; s3, fermenting the rice milk in a constant temperature box at 30-35 DEG C for 2-6 hours to obtain fermented rice milk; and S4, steaming the fermented rice milk, and cooling to obtain the high-fiber rice cake. According to the method, the high-fiber rice cake can be prepared only through one-time fermentation, internal holes are compact and uniform, and the high-fiber rice cake is rich in soluble dietary fibers.

The invention relates to a method for preparing porous starch with high oil absorption rate, and belongs to the technical field of starch production. The method comprises the following preparation steps: weighing a cross-linked body, sequentially adding ammonium ferrous sulfate solution, deionized water, ethyl methacrylate, thiourea oxide and hydrogen peroxide solution, controlling the rotation speed, mechanically stirring, passing nitrogen, controlling the temperature for reaction, washing with water after the reaction is completed to obtain grafted porous starch, placing the grafted porous starch in an extractor for acetone extraction for 24-26 hours, taking out, drying, and obtaining a porous starch with high oil absorption rate; the method adopts a composite enzyme of a specific proportion to reduce the bulk density, introduces sodium trimetaphosphate to increase the cross-linking degree, and reduces the sedimentation volume; a porous network structure surface formed by sodium trimetaphosphate and the porous starch after enzymolysis absorbs ethyl methacrylate into the interior of particles, and a specific ratio of hydrogen peroxide and thiourea oxide increases the grafting rate and grafting efficiency of ethyl methacrylate, thereby increasing the oil absorption rate.

The invention discloses an astaxanthin supercritical CO2 extraction process and special equipment, and relates to the field of astaxanthin preparation, the astaxanthin supercritical CO2 extraction process comprises a multistage wall-breaking granulation pretreatment stage and a dynamic countercurrent supercritical extraction stage, and liquid nitrogen low-temperature embrittlement is performed on a haematococcus pluvialis mud raw material; carrying out ultrahigh-pressure homogenization wall breaking on the algae mud subjected to low-temperature embrittlement to obtain wall-broken algae powder; carrying out vacuum belt type drying on the wall-broken algae powder, and removing moisture to a critical value; and preparing high-porosity particles from the dried wall-broken algae powder, porous starch, lecithin and nano calcium carbonate. In the multi-stage wall breaking pretreatment stage, cell walls of haematococcus pluvialis are efficiently destroyed under the combined action of liquid nitrogen low-temperature embrittlement and ultrahigh-pressure homogeneous wall breaking, so that astaxanthin wrapped in cells is fully exposed; according to the prepared high-porosity particles, the specific surface area and the pore structure of the particles are greatly increased, the contact efficiency of supercritical CO2 and astaxanthin is enhanced, the problems that in a traditional technology, the astaxanthin is high in wrapping rate and difficult to dissolve out are solved, and the extraction rate is remarkably increased.

The invention belongs to the field of food processing, and provides quick-rehydration noodles and a preparation method thereof.The quick-rehydration noodles are prepared from, by mass, 100 parts of flour, 3-10 parts of vital gluten, 3-10 parts of porous starch-gelatin compound and 3-10 parts of dextrin; the porous starch-gelatin compound is obtained by fully dissolving and uniformly mixing porous starch and gelatin in water according to a mass ratio of 1: (0.5-2), and the solid content of the porous starch-gelatin compound is 25-40%. The rapid rehydration surface strip has a porous structure, is high in heat conductivity coefficient, can reduce rehydration time, realizes rapid rehydration, and improves water absorption.

The application discloses a preparation method of structural stable porous starch, which comprises the following steps: adding a hydrophilic colloid into deionized water to prepare a solution, then adding starch, mixing uniformly to obtain a compound suspension, heating the compound suspension at a crystal starting melting temperature, then performing vacuum freeze drying, grinding and sieving to obtain melting coated starch, adding the melting coated starch into a citric acid-sodium phosphate buffer solution, mixing uniformly to obtain a starch-buffer solution suspension, adding an enzyme to perform oscillation reaction, adjusting the reaction solution to alkaline to terminate the reaction after the reaction is completed, then adjusting the reaction solution to neutral, finally performing centrifugation, washing, vacuum freeze drying, grinding and sieving to obtain the structural stable porous starch. The method has the advantages of simple process and low manufacturing cost, and the prepared porous starch has excellent adsorption, structural stability and thermal stability, and solves the problems of complex manufacturing process, long preparation time, poor structural stability of the prepared porous starch and limited pore forming effect in the prior art.

The invention discloses a preparation method of porous starch with a stable structure, which comprises the following steps: firstly, adding hydrophilic colloid into deionized water to prepare a solution, then adding starch, uniformly mixing to obtain a compound suspension, heating the compound suspension at a crystal melting starting temperature, and then carrying out vacuum freeze drying, grinding and sieving to obtain molten coated starch; the preparation method comprises the following steps: adding starch into a citric acid-disodium hydrogen phosphate buffer solution, uniformly mixing to obtain a starch-buffer solution suspension, adding an enzyme, carrying out an oscillating reaction, adjusting the reaction solution to be alkaline after the reaction is finished to terminate the reaction, then adjusting to be neutral, and finally centrifuging, washing, carrying out vacuum freeze drying, grinding and sieving to obtain the starch. The method is simple in process and low in manufacturing cost, the prepared porous starch has excellent adsorbability, structural stability and thermal stability, and the problems that in the prior art, the manufacturing process is complex, the preparation time is long, and the prepared porous starch is poor in structural stability, limited in pore-forming effect and the like are solved.

The invention discloses a method for prolonging the shelf life of cooked wheaten food at normal temperature. The method comprises the following steps: S1, preparing OSA modified acorn starch; s2, carrying out enzymolysis on the OSA modified acorn starch; s3, preparing a plant essential oil emulsion; s4, loading the plant essential oil emulsion on the acorn starch; and S5, preparing the antibacterial bag. Holes are formed in the surfaces and interiors of the starch particles. The pores enable the starch particles to become loose and porous, and the specific surface area is increased, so that the physicochemical properties and functional characteristics of the starch are changed. The formation of the porous starch not only improves the adsorption performance of the starch, but also enhances the solubility and expansibility of the starch. Due to the porous structure, water molecules can more easily permeate into starch particles, dissolution and expansion of starch are promoted, essential oil can more easily enter the starch, and the loading rate of the essential oil is increased. And in a dry environment, the essential oil can also be slowly released from the porous starch structure.

The present invention relates to the use of porous starch as bulking agent in a chewing gum. The present invention also relates to a process of fabricating the chewing gum and to a chewing gum composition comprising porous starch as bulking agent.

The present invention belongs to the technical field of polymer plastics, and in particular to a PBT composite material and a preparation method thereof. The PBT composite material is prepared from the following raw materials in parts by weight: 65 to 90 parts of polybutylene terephthalate, 5 to 30 parts of modified PBT flame retardant, 3 to 5 parts of antibacterial agent, 0.2 to 0.8 parts of compatibilizer, and 1 to 2 parts of porous starch-antioxidant. The present invention uses a chemical method to modify the oligomeric PBT, impart flame retardancy to it, and then blends it with PBT to solve the problem that the current PBT composite material can only introduce limited halogen-free flame retardants and the compatibility of halogen-free flame retardants with PBT is poor; the antioxidant is adsorbed using porous starch to avoid the antioxidant being completely consumed in a short time, so that the antioxidant can more effectively protect the material, improve stability, and extend the service life.

The present application relates to the technical fields of medical health food, and discloses a preparation device for naringin compound loaded by octenyl succinic acid modified porous starch ester, which comprises a preparation liquid ultrasonic mixing cylinder assembly, a mixing top cover assembly is arranged on the top of the preparation liquid ultrasonic mixing cylinder assembly, and a mixed liquid shaking and stirring assembly is arranged on the mixing top cover assembly; a rocker arm base assembly is rotatably arranged at the bottom of the preparation liquid ultrasonic mixing cylinder assembly; a preparation liquid mixing cylinder assembly is fixedly arranged on both sides of the top of the preparation liquid ultrasonic mixing cylinder assembly; the preparation liquid ultrasonic mixing cylinder assembly comprises a preparation liquid ultrasonic mixing cylinder, a plurality of mixing cylinder bottom arm tables are fixedly arranged on the preparation liquid ultrasonic mixing cylinder through reinforcing rib plates, and a bottom arm table main shaft rod is fixedly arranged on the mixing cylinder bottom arm table; an aeration pipe is fixedly arranged at the bottom of the preparation liquid ultrasonic mixing cylinder, and a liquid pump is fixedly arranged outside the bottom of the preparation liquid ultrasonic mixing cylinder. The present application has the characteristics of sufficient mixing.

The invention provides a preparation method of a compound nutrient preparation, and relates to the technical field of nutrient preparation. According to the preparation method disclosed by the invention, a combined process of firstly carrying out porous starch adsorption, then carrying out adhesion by utilizing starch sodium octenylsuccinate and finally carrying out coating is adopted, so that the limitation problems of fine particles, small stacking density, poor water solubility and the like of microcapsules in the prior art are solved; the preparation method is suitable for a preparation scene of the child compound nutrient containing the vitamin C with poor stability; and the technical effects of remarkably improving the embedding rate of the nutrients, effectively weakening the mutual degradation effect between the nutrients and other components and improving the stability of the compound nutrient preparation are achieved.

The invention discloses a liver targeting porous starch-luteolin compound and a preparation method and application thereof, and belongs to the technical field of drug delivery, corn porous starch is used as a carrier, and the compound with the liver targeting function is prepared through OSA hydrophobic modification, luteolin loading and epsilon-polylysine-galactoside targeting modification. The drug loading capacity and liver targeting property of luteolin are remarkably improved through triple modification, the production process is simple, the cost is low, and excellent blood sugar reducing and liver protecting effects are shown in diabetes liver injury treatment.

The application discloses a high-salt-resistant denitrifying bacterial strain and a microsphere preparation thereof, a preparation method and application thereof, relates to the technical field of environmental microorganisms and wastewater biological treatment. Pseudomonas sp. The classification name of the strain is Pseudomonas sp., the preservation number is CGMCC No. 36626, the strain is preserved in the China General Microbiological Culture Collection Center, and the preservation date is November 14, 2025. The preparation method of the microsphere preparation containing the strain comprises the following steps: carrying out strain amplification culture to obtain a bacterial liquid, mixing the bacterial liquid with porous starch and a protective agent, then performing vacuum freeze drying to obtain bacterial powder, and then mixing the bacterial powder with a sodium alginate solution, and dropping the mixture into a calcium chloride solution to obtain the microsphere preparation. The microsphere preparation can maintain a nitrate nitrogen removal rate of more than 80% after being stored at-18 to-22 DEG C or 20 to 25 DEG C for 28 days, and can be used for denitrification and nitrogen removal of low-carbon-nitrogen-ratio and high-salt wastewater (such as urine wastewater in a closed circulation system).

This invention relates to the field of food additive manufacturing technology, and provides a 3D-printed probiotic chocolate and its preparation method. The invention involves sequentially subjecting a compound starch suspension to thermal gelatinization and alcohol precipitation to obtain a thermally gelatinized-alcohol-precipitated solution. This solution is then concentrated, cultured, centrifuged, and dried to obtain porous starch. The porous starch is sterilized and mixed with a culture medium solution and probiotics. Through microgelatinization, centrifugation, and freeze-drying, porous starch granules encapsulating probiotics are obtained. These encapsulated probiotic porous starch granules are then mixed with melted chocolate and 3D printed to obtain probiotic-printed chocolate. This invention utilizes porous starch to encapsulate probiotics, improving the retention rate of probiotics in complex environments. Simultaneously, 3D printing technology rapidly forms chocolate products with uniformly distributed probiotics, allowing for personalized design and the production of functional chocolates with high probiotic content based on individual needs.

The invention relates to the technical field of organic fertilizer preparation, in particular to a method for preparing bio-organic fertilizer from waterfowl breeding waste and application of the bio-organic fertilizer. The method specifically comprises the following steps: (1) mixing waterfowl breeding manure and straws to obtain a material 1, adjusting the water content, and then performing segmented fermentation; (2) adding a complex microbial inoculant at the beginning of the second stage; (3) adding charcoal and humic acid at the beginning of the third stage; and (4) after the third-stage fermentation is completed, adding porous starch, granulating, and drying in vacuum to obtain the bio-organic fertilizer. The method provided by the invention realizes high-value utilization of the breeding wastes, and has remarkable circular economy advantages. The whole process does not need chemical additives, energy consumption is reduced through low-temperature granulation and vacuum drying, microbial activity is reserved, and the method is suitable for large-scale production and remarkable in popularization value.

The invention discloses a composition with an anti-oxidation function as well as a preparation method and application thereof, and belongs to the technical field of functional foods. The preparation method of the composition comprises the following steps: preparing a gamma-aminobutyric acid-citric acid eutectic mixture; constructing a corn oligopeptide-plant polyphenol oligosaccharide composite micelle; preparing corn germ concentrated powder-lactitol porous microspheres; and synergistically blending. Aiming at the problems of lack of synergistic effect, release mismatching and the like in the prior art, a three-stage physical structure design is adopted, a quick release-medium release-slow release cascade system is constructed, and component time sequence release and function collaboration are realized; plant polyphenol oligosaccharide is introduced to construct natural micelles, and the stability is improved through porous starch coating. The problems of poor component synergism, easy inactivation and the like are solved, endogenous and exogenous anti-oxidation linkage is realized, the action time is prolonged, and the bioavailability is improved.

The invention discloses a low-GI sweet potato biscuit and a preparation method thereof. The preparation method comprises the following steps: mixing sweet potato whole powder, inulin and other raw materials to form basic powder, freezing at-20 DEG C, forming pores, and unfreezing to obtain porous premixed powder; the preparation method comprises the following steps: preparing a composite mineralizing solution containing soybean protein peptide, nano calcium hydrophosphate and tea polyphenol, mixing and mineralizing the composite mineralizing solution with porous premixed powder, screening, mixing and kneading with an auxiliary material emulsion, forming, freezing to obtain biscuit blanks, and finally performing segmented temperature-controlled baking, cooling and packaging. According to the low-GI sweet potato biscuit and the preparation method thereof, a freezing pore-forming-polyphenol mediated mineralization-peptide anchoring three-in-one composite modification technology is adopted, functional raw materials in a specific proportion are cooperated, a five-dimensional cross-linked network of porous starch-peptide-polyphenol-mineral substance-beta-glucan is constructed, and function upgrading of the low-GI sweet potato biscuit is achieved from multiple dimensions of structure optimization, mechanism strengthening and nutrition cooperation.

The application discloses a chrysochlamys zollingeri extract functionalized viscose fiber and a preparation method and application thereof, and belongs to the technical field of functional fiber material preparation.The chrysochlamys zollingeri extract functionalized viscose fiber is formed by wet spinning process of a viscose original solution containing microcapsules, and the viscose original solution containing microcapsules is prepared by mixing a viscose original solution and chrysochlamys zollingeri extract / porous starch composite microcapsules, wherein the viscose original solution is prepared by impregnating cellulose pulp with a sodium hydroxide aqueous solution, carbon disulfide yellowing, and then dissolving and aging in a sodium hydroxide aqueous solution.The chrysochlamys zollingeri extract functionalized viscose fiber is prepared by microcapsule embedding combined with a mild spinning process, so that active ingredients of the chrysochlamys zollingeri extract are maximally retained, long-acting, stable and slow release and anti-inflammatory and soothing effects are achieved, the chrysochlamys zollingeri extract functionalized viscose fiber can be further processed into a functional fabric through a water jet process, and is suitable for high-end sanitary material fields such as infant paper diapers.

The invention relates to the field of rubber additives, in particular to a lignin-based composition as well as a preparation method and application thereof. Aiming at the problem of blockage caused by adhesion of a rubber component to a container and equipment when lignin is used as a reinforcing agent in the prior art, the lignin-based composition provided by the invention comprises lignin and a porous material, the mass ratio of the lignin to the porous material is 1: (0.12-0.5); the porous material comprises one or more of porous starch, a porous carbon material, porous calcium carbonate and porous kaolin; the porous carbon material comprises one or more of activated carbon, carbon black, mesoporous carbon, carbon nanotubes, graphene aerogel and biomass carbon. The preparation method comprises the following steps: drying lignin, and mixing the dried lignin with the dispersing agent and the porous material to obtain the lignin-based composition. By adding the lignin, the dispersing agent and the porous material in a specific proportion, electrostatic adsorption of the lignin is reduced, and the problem that the rubber composition is easy to adhere to a container and equipment is solved.

The invention discloses a preparation method and application of a soft capsule containing (R)-3-hydroxybutyric acid. The preparation method comprises the following steps: S1, mixing an (R)-3-hydroxybutyric acid solution with a porous material, drying and sieving to obtain composite solid powder; wherein the porous material is selected from any one of gel silicon dioxide, porous starch and isomaltitol; s2, adding a thickening agent into an oily solvent, dissolving, then sequentially adding an antioxidant and the composite solid powder, and uniformly mixing to obtain a soft capsule content; and S3, under a heating condition, mixing glycerol, water, gelatin and an opacifying agent, dissolving and defoaming to obtain a capsule skin glue solution, pelleting the capsule skin glue solution and the soft capsule content through a pelleting machine, and drying to obtain the soft capsule. The soft capsule prepared by the method disclosed by the invention can effectively avoid the corrosion effect of (R)-3-hydroxybutyric acid on the capsule shell, is beneficial to improving the stability, and is simple in preparation process and suitable for industrial production.

The invention discloses a micro-nano graded membrane structure camouflage starch-based porous composite particle as well as a preparation method and application thereof, and relates to the technical field of biomedical materials. The porous composite particle comprises membrane-like structure camouflage bioactive glass and porous starch microspheres, wherein the membrane-like structure camouflage bioactive glass is porous bioactive glass containing chitosan / bovine serum albumin membrane-like structure camouflage; the porous composite particle provided by the invention has a relatively high liquid absorption rate, can concentrate blood coagulation factors and activate various blood coagulation mechanisms of an organism at the same time, and can safely degrade the high-efficiency hemostatic composite particle without side effects after playing a high-efficiency hemostatic role.

The invention discloses an agricultural bactericidal sustained-release particle and a preparation method thereof, and belongs to the technical field of pesticides, the agricultural bactericidal sustained-release particle is characterized in that a component A is wrapped by a component B to form an internal and external dual sustained-release structure, and modified porous diatomite and porous starch with different pore diameters are mixed to achieve the purpose of gradient sustained release, and are cross-linked with polyvinyl alcohol and a cross-linking agent A to obtain the agricultural bactericidal sustained-release particle. A stable three-dimensional network structure is formed, so that the load is more stable, and the application mechanical property is better. In addition, D-tyrosine is added into the component A, so that the sterilizing effect can be enhanced; the component B adopts a degradable material, aminopropyl oligosiloxane and a cross-linking agent B are introduced into a polylactic acid-polyethylene glycol block copolymer, so that the adhesiveness of the polylactic acid-polyethylene glycol block copolymer on the surface of the component A is enhanced, the cross-linking agent B can also form a chemical bonding effect with the cross-linking agent A, polyvinyl alcohol and modified porous diatomite, and a bonding network delays film layer breakage, so that the adhesion of the film layer on the surface of the component A is enhanced. And moreover, the antibacterial agent is added, so that the synergistic sterilization and antibiosis effects can be realized, and the persistence is prolonged.

The present invention relates to the use of porous starch as a spray drying aid in the preparation of flavor powders. The present invention also relates to a process for producing flavor powders and flavor powders comprising porous starch obtained from the process. The present invention also relates to flavor powders comprising porous starch as a spray drying aid.