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353results about How to "Good embedding effect" patented technology

Hardenable pressure sensitive adhesive sheet for dicing/die-bonding and method for manufacturing semiconductor device

A dicing and die bonding pressure-sensitive adhesive sheet having a pressure-sensitive adhesive layer that exhibits excellent embedding properties in die bonding to thereby prevent formation of voids between die pads and the pressure-sensitive adhesive layer even when chips are mounted on die pads exhibiting great differences in height. The dicing and die bonding pressure-sensitive adhesive sheet comprises a base material and a pressure-sensitive adhesive layer disposed thereon, the pressure-sensitive adhesive layer having a ratio (M100 / M70) of a modulus of elasticity at 100° C. (M100) to a modulus of elasticity at 70° C. (M70) of 0.5 or less.
Owner:LINTEC CORP

Lactobacillus helveticus microcapsule, preparation and use thereof

InactiveCN101323850AOvercoming the problem of low survival rate of freeze-dryingImprove efficiencyMilk preparationMetabolism disorderFreeze-dryingDietary supplement
The invention provides a lactobacillus helveticus microcapsule as well as the preparation and application thereof, pertaining to the embedding technology of lactobacillus helveticus and aiming at microencapsulating the lactobacillus helveticus so as to solve the problems of low embedding efficiency and embedding yield in single-layer or double-layer embedment. The technical proposal adopted by the invention is that isolated soy protein, microporous starch and sodium alginate are respectively taken as the first, the second and the third layers of wall materials for microencapsulation; the three-layer embedment is carried out to the lactobacillus helveticus for the first time, wherein, in the process of preparing bacterial suspension, an orthogonal optimization protective agent is adopted to improve the livability after freeze drying. The microcapsule of the invention has strong heat resistance and acid resistance, solves the inactivation problem caused by gastric acid, digestive enzyme and antibiotic, etc. to active bacillus, is capable of releasing when reaching large intestine, and balances intestinal flora. The reusability of fermented milk is good. The lactobacillus helveticus used by the invention enriches the variety of probiotic bacteria microcapsule and is a good dietary supplement.
Owner:TIANJIN UNIVERSITY OF SCIENCE AND TECHNOLOGY

Plating method and plating apparatus

A plating method is capable of depositing a plated film having excellent in-plane uniformity with respect to a thin seed layer and excellent embeddability with respect to fine damascene structures. The plating method includes: positioning an electric resistor between a conductive layer formed on at least a portion of a surface of a substrate and an anode; introducing respectively a plating solution into a space between the conductive layer and the anode on a conductive layer side, and an anode solution into a space between the conductive layer and the anode on an anode side, thereby filling the space with a plating bath composed of the plating solution and the anode solution, with the plating solution containing 25 to 75 g / L of copper ions and at least 0.4 mole / L of an organic acid or an inorganic acid, and the anode solution being of the same composition as the plating solution, or containing 0 to 75 g / L of copper ions and at most 0.6 mole / L of an organic acid or an inorganic acid; and applying a voltage between the conductive layer and the anode to plate a surface of the conductive layer.
Owner:EBARA CORP

Microcapsule preparation method and product thereof

The invention relates to a microcapsule preparation method and a product thereof. The microcapsule preparation method is characterized by comprising the following steps that: the powder embedding material is put into a drying device in advance, and is kept in a suspension or boiling fluidized state under hot blast, and is lactose or lactose composite powder; and meanwhile, the emulsified liquid which is prepared from core materials, emulsifier and water is atomized into liquid drop to be sprayed into the drying device, the atomized liquid drop is contacted with the powder embedding material which is in the suspension or boiling fluidized state and is wrapped by the powder embedding material, meanwhile, particles are formed by the drying of the hot blast, and the microcapsule product is obtained after separation. The method adopts the lactose or lactose composite powder as the powder embedding material, the prepared microcapsule takes the single particle as the main part, and the particles are more regular in shapes, are not adhered with one another, have better stability, better liquidity and higher safety at the same time.
Owner:CABIO BIOTECH WUHAN CO LTD

Feed for promoting reproductive performance and used in earlier stage of peak laying period and preparation method thereof

The invention discloses a feed for promoting the reproductive performance and used in the earlier stage of a peak laying period, belonging to the technical field of feed composition. Plant extracts, corn bee pollen extract, Chinese herb extracts, modified dietary fiber, prebiotics factors and the like are scientifically compounded in the laying hen feed used in the earlier stage of a peak laying period and thus the feed for promoting the reproductive performance is prepared; through feeding experiment, the feed disclosed by the invention and the commercially available feed used in the peak laying period respectively have the following beneficial effects: the length of the fallopian tube of the laying hen is 6.82cm and 4.62cm respectively, the weight of the fallopian tube is improved by 11.49g and 7.46g respectively, the weight of ovary is improved by 6.08g and 4.17g respectively, the laying rate is improved by 2.07% and 2.15% respectively, the egg yield is improved by 2.73g and 1.92g respectively, the shank length is 7mm and 5mm respectively, the weight is improved by 0.07kg and 0.05kg respectively and the survival rate is improved by 2.4% and 3.2% respectively; the laying hen has strong reproductive performance, strong production performance, strong immunity resistance and disease resistance.
Owner:邵素英

Manufacturing method for embedding heat radiating fin on printed circuit board

A making method for embedding fins on a printed circuit board includes following steps: 1) opening a tool hole on the position to be embedded with fins in a circuit board and a prepreg forming region, and drilling a pre-positioning hole outside of the forming region; 2) arranging the prepreg between two adjacent circuit board, pre-positioning the circuit boards and the prepreg through the pre-positioning hole; 3) arranging fins in the tool hole in a stitching pre-lamination process; 4) stitching the circuit boards and the prepreg to fill the gap between the tool hole and fins by flowing latex, the prepreg cures automatically during stitching, combining the fins and the circuit boards; 5) mechanical brushing and grinding board elements, cleaning residual prepreg material on surfaces of circuit boards. The invention avoids the inanition phenomenon, solves depression or protrusion of circuit board surfaces, reduces abnormal wear of grinding brush wheels in following process, thereby the embedding effect of fins is good.
Owner:CHINA CIRCUIT TECH SHANTOU CORP

Fixed microbe rubber granule filler, preparation and application thereof

The invention discloses a fixed microbe rubber granule filler which comprises rubber granules as carriers, embedding medium and microbe enzyme preparation for providing microbes, wherein the rubber granules can mutually act with the embedding medium and the microbe enzyme preparation to form composite macromolecular gel, microbes in the microbe enzyme preparation are embedded in a gel network to form the fixed microbe rubber granule filler. The invention further discloses a preparation process of fixed microbe rubber granule filler and an application thereof in sewage treatment. As adding polyvinyl alcohol and the microbe enzyme preparation in the rubber granules, the fixed microbe rubber granule filler has light weight than common rubber granules, and is easy to form circulating fluidization state in a biological reactor, and enables sewage to fully contact with the fixed microbe filler, and the stability of a biological film is excellent.
Owner:BEIJING GUODIAN FUTONG SCI & TECH DEV

Beta-carotene microcapsule and preparation technology thereof

The invention relates to a beta-carotene microcapsule and a preparation technology thereof. The technology comprises the following steps: mixing corn starch which contains beta-carotene crystals and microhole ocentyl succinic anhydride and serves as a core material, an oil phase consisting of plant oil, an antioxidant and the like and a water phase consisting of a wall material, an antioxidant, a dispersant, water and the like according to a ratio, homogenizing to prepare microemulsion, and performing spray drying to prepare beta-carotene microcapsule powder. In a preparation process, no organic solvent needs to be added, and an obtained product keeps the bioactivity, is stable to the photo-thermal property and is extremely high dissolvability in cold water; processing, transportation and storage are facilitated; the safety, the flowability, the taste and the water solubility of the product are greatly improved; the beta-carotene microcapsule is a high-quality health food and food pigment raw material. The yield of the beta-carotene microcapsule prepared by the technology is high, and the preparation method is suitable for batch preparation of the beta-carotene microcapsules; continuous large-scale production is realized.
Owner:武汉志邦化学技术有限公司

Soybean oil powder grease and preparation method thereof

The invention relates to soybean oil powder grease and a preparation method thereof. Concretely, soybean first-grade oil is used as a raw material to be used as core materials, a microencapsulation embedding technology is adopted, and a novel series soybean oil powder grease product with excellent processing characteristics and rich and mass nutrients is developed through the selection of an embedding agent, a filling agent and an emulsifying agent and the optimization of process conditions. The improvement is carried out on the trial test study, an industrialized production and test recipe is obtained. During the proportioning, the soybean oil powder grease comprises the following ingredients in percentage by weight: 9.25 percent to 27.25 percent of core material, 1.35 percent to 2.7 percent of embedding agent, 13.925 percent to 33.8375 percent of filling agent, 0.5625 percent to 1.125 percent of emulsifying agent and 55 percent of water. Compared with ordinary liquid-stage grease products, the product has various advantages that the quality guarantee period of the product is prolonged, the product functionality is improved, the product water solubility is improved, and the product application range is enlarged.
Owner:SOYBEAN TECH DEV RES CENT HEILONGJIANG PROV

Full-function facial mask and preparation method thereof

ActiveCN103932898ANo burdenReduces and improves pigmentationCosmetic preparationsToilet preparationsVitamin CLiposome
The invention provides a full-function facial mask. The facial mask comprises the following components in percentage by mass: 0.01-2 percent of hyaluronic acid, 0.01-1 percent of reduced glutathione, 0.01-2 percent of L-vitamin C, 0.01-2 percent of tranexamic acid, 0.01-2 percent of liquiritigenin, 0.01-5 percent of vitamin E, 0.01-1 percent of EGF lyophilized powder, 0.01-2 percent of active peptide, 0.01-3 percent of SOD, 0.01-2 percent of arbutin, 0.1-2 percent of allantoin, 0.5-5 percent of glycerinum, 0.5-5 percent of propylene glycol and the balance of water, wherein the effective components are independently embedded with liposome or coated with nano-microcapsules before being mixed. The activated effective components of the facial mask are independently coated or embedded with transporters, and are delivered to the corium layer or the superficial corium layer by virtue of transportation of the transporters to achieve the effects of quadruple whitening, triple repairing and double moistening.
Owner:BEIJING BIOSIS HEALING BIOLOGICAL TECH

Method for producing corn porous starch by using low temperature freeze-thawing technology

A method for producing corn porous starch by using a low temperature freeze-thawing technology comprises the following steps: 1, immersing corn starch; 2, freeze-thawing: freezing the immersed corn starch at -10 ~ -196 DEG C for 0.5-12 h, unfreezing the frozen corn starch at 20-50 DEG C for 3-8 h, and repeatedly carrying out freezing and unfreezing treatment 1-50 times. The method has the advantages of simplicity in operation, high production efficiency, clean production technology, no pollution to environment, realization of large-scale continuous production, and low production cost due to adoption of reagents and materials having common specifications; and the corn porous starch produced in the invention has the advantages of high freeze-thawing stability, strong reaction activity, good adsorptivity and good embedding property.
Owner:QIQIHAR UNIVERSITY

Glycerol monolaurate microcapsule as well as preparation method and application of glycerol monolaurate microcapsule

The invention discloses a glycerol monolaurate microcapsule as well as a preparation method and an application of the glycerol monolaurate microcapsule. The preparation method comprises the following steps that: the glycerol monolaurate and emulsifying agents are dissolved into water being 60 to 70 DEG C to obtain solution A; wall materials are dissolved into the water being 60 to 70 DEG C to obtain solution B; the solution A and the solution B are mixed when the solution A and the solution B are still hot, stirring is carried out, and emulsion is obtained; and the emulsion is subjected to homogenizing and spray drying to obtain the glycerol monolaurate microcapsule, wherein the emulsifying agents are at least one kind of materials from sucrose ester, granulesten and fatty acid monoglyceride; and the wall materials are a mixture of maltodextrin and high-molecular compounds. The method provided by the invention is simple and practical, the controllability is strong, and the microencapsulation efficiency on core materials is higher; and the prepared glycerol monolaurate microcapsule has good flowability, dissolution dispersibility and mouth feeling, in addition, the anti-bacterium effect is not obviously reduced, and the glycerol monolaurate microcapsule can be applied to infant formula powder and realizes the effects of enhancing the immunity and resisting the infection.
Owner:ZHEJIANG UNIV +1

Edible grain, bean and potato coarse cereal rice composition and preparing method thereof

The invention discloses an edible grain, bean and potato coarse cereal rice composition and a preparing method thereof and belongs to the technical field of grain deep processing. According to the edible grain, bean and potato coarse cereal rice composition, broken rice is used as a main raw material, after ultrasonic cleaning, microwave curing, drying and sterilizing of the broken rice, the broken rice, grain powder with a special flavor, enzymatic hydrolysate and other functional raw materials are pelletized, and then grain arrangement and processing through a microwave drying device are carried out, so that the edible grain, bean and potato coarse cereal rice composition is obtained. The edible grain, bean and potato coarse cereal rice composition has a tissue structure, granularity, hardness and viscosity which are similar to those of rice, can be boiled and cooked with rice, has the taste and chewiness, which are similar to those of cooked rice, is unique in flavor, soft in fragrance, high in appetite attractiveness, easy to digest and comprehensive in nutrition, and can improve the immunity and disease resistance of the human bodies and improve the gastrointestinal function. The guarantee period is three times of that of commercial rice. More importantly, a shortcut is developed for the efficient value-added comprehensive utilization of the broken rice, the road for the deep processing of the broken rice is broadened, and the economical value of the broken rice is increased. Better social benefits and economic benefits are realized and a sustainable development road for the deep processing of agricultural byproducts and the effective solving of Three-Rural problems is explored.
Owner:敖汉旗北方粮仓农产品批发市场有限公司

Preparation method for hemp seed oil microcapsules

The invention discloses a preparation method for hemp seed oil microcapsules. The preparation method comprises the following steps: (1) preparation of a wall material solution : taking maltodextrin, modified starch, Arabic gum and saccharose as main wall materials, and mixing the main wall materials and water to prepare the wall material solution; (2) sterilization: sterilizing the wall material solution; (3) emulsification: mixing and emulsifying the sterilized wall material solution and hemp seed oil to obtain an emulsion; (4) drying: spray-drying the emulsion to obtain the hemp seed oil microcapsules. The hemp seed oil microcapsules prepared by the method have the advantages of high oil content, high encapsulation rate, good stability and long quality guarantee period; the method is simple, lower in cost and conductive to practical production and application, and brings better economic benefits.
Owner:INFINITUS (CHINA) CO LTD

Resin embedding method for biological tissues marked by fluorescent protein and application of alkaline solution

The invention discloses a resin embedding method for biological tissues marked by fluorescent protein. The resin embedding method comprises the following steps: (1), fixing the biological tissues marked by the fluorescent protein in a chemical fixing manner to obtain the fixed biological tissues marked by the fluorescent protein; (2), replacing the fixed biological tissues marked by the fluorescent protein with an organic solvent, so that the biologic tissues are dewatered to obtain dewatered biological tissues marked by the fluorescent protein; (3), performing embedding agent permeation treatment on the dewatered biological tissues marked by the fluorescent protein to obtain embedding-agent monomer-filled biological tissues marked by the fluorescent protein; (4), enabling the embedding agent to generate a polymerization reaction to obtain a resin-embedding sample of the biological tissues marked by the fluorescent protein; (5), soaking the resin-embedding sample in an alkaline solution, and adjusting the pH value to be 8-12. The resin embedding method for the biological tissues marked by the fluorescent protein can be suitable for biologic tissue samples of various sizes, the fluorescence intensity is high, the imaging effect is good, and the samples have excellent cutting performance.
Owner:HUAZHONG UNIV OF SCI & TECH

Memory device, semiconductor storage device, method for manufacturing memory device, and reading method for semiconductor storage device

A memory device that can prevent degradation in characteristics of a diode and the destruction due to the miniaturization includes: a substrate; first electrodes, a second electrode, and a third electrode that are stacked above the substrate; a variable resistance layer between the first and second electrodes; and a non-conductive layer between the second and third electrodes. The variable resistance layer includes a high-concentration variable resistance layer closer to the first electrodes, and a low-concentration variable resistance layer closer to the second electrode and having an oxygen concentration lower than that of the high-concentration variable resistance layer. The second and third electrodes and the non-conductive layer comprise the diode, and the first and second electrodes and the variable resistance layer comprise variable resistance elements, a total number of which is equal to that of the first electrodes.
Owner:PANASONIC SEMICON SOLUTIONS CO LTD

Process for producing a multi-layer printer wiring board

InactiveUS6881293B2Excellent embed propertyExcellent surface smoothnessPrinted circuit aspectsLaminationChemistryProduction rate
The present invention is directed to an inter-laminar adhesive composition containing a liquid epoxy resin, a polyfunctional epoxy resin having a softening point higher than a lamination temperature of the adhesive and with two or more epoxy groups within the molecule; and a latent epoxy curing agent initiating a reaction at a temperature higher than the lamination temperature. The adhesive composition optionally contains a liquid resin other than the liquid epoxy resin and / or an organic solvent and the liquid resin includes the liquid epoxy resin, the organic solvent or both constituting from 10 to 55% by weight of the composition.This inter-laminar adhesive composition allows for the preparation of a multi-layer printed wiring board. The process for preparing the multi-layer printed wiring board is provided. The resulting multi-layer printed wiring board of the invention possesses excellent embedding properties in the internal-layer circuit, excellent surface smoothness and can be provided at high productivity levels in a building up process using the present adhesive.
Owner:AJINOMOTO CO INC

Preparation method for granular cold-water soluble starch

The invention provides a preparation method for granular cold-water soluble starch so as to solve the defects of high temperature and high pressure, massive industrial sewage, high energy consumption and long process of the current technology for preparing granular cold-water soluble starch. Dry starch and ceramics mill balls are arranged in a ceramics mill ball tank; the ceramics mill balls with specific diameters are selected and the mass ratio of the ceramics mill balls to the starch is 3 to 1 - 15 to 1. Measured through the volume of the dry starch, the filler rate of the mill ball tank is 10-50 percent. The granular cold-water soluble starch can be obtained by milling the dry starch for 1.5-7h under a rotating speed of 200-550r / min of a ball mill. The preparation method is simple and easy, does not need high temperature and high pressure, and can prepare the granular cold-water soluble starch through a mechanical activation way of the ball mill under normal temperature, can not generate industrial sewage, has low energy consumption and short process, is simple and is easy to realize industrialized production.
Owner:HARBIN INST OF TECH

Lycopene microcapsule granules and preparation process thereof

InactiveCN104431690AImprove liquidityAvoid the problem of exceeding the standardFood preservationFood ingredientsBiotechnologyStarch corn
The invention relates to lycopene microcapsule granules and a preparation process thereof. Lycopene crystal powder, sunflower oil or corn oil, porous starch, oxidized starch, modified cassava starch, corn syrup, trehalose, natural VE oil are used as main raw materials, a process is reasonably improved and optimized to be used for greatly shortening the production time, the entire production process is controlled, the drying is carried out layer by layer and the recycling is carried out step by step. Obtained products are spherical, the surfaces of the products are smooth and trim, the biological activity of the products is kept, the products can be well solved in cold water, the use, storage and transportation are relatively well facilitated, no organic solvent or harmful substance is left, the safety, liquidity, taste and water solubility of the products are greatly improved, and resource waste is reduced. By adopting the process, the yield of the lycopene microcapsule granules is high, and the process is suitable for being used for large scale preparation of the lycopene microcapsule granules, and is used for achieving the continuous mass production and reducing the production cost.
Owner:武汉志邦化学技术有限公司

Graph embedding method and device, and storage medium

The invention provides a graph embedding method and device, and a storage medium, and the method comprises the steps: reading graph structure data and node feature values in a target graph, and building a graph structure model; regarding each node in the graph structure model as a target node, and sampling a first-order neighbor node of each target node according to the non-uniform neighbor node sampling function to obtain a first-order neighborhood of each target node; constructing second-order neighborhoods of the target nodes according to the first-order neighborhoods of the target nodes, aggregating the second-order neighborhoods to the first-order neighborhoods corresponding to the target nodes, and inputting the aggregated features of the second-order neighborhoods into the fully-connected neural network to obtain new features of the first-order neighborhoods of the target nodes; and aggregating the new features to the corresponding target nodes, and inputting the aggregated newfeatures of the first-order neighborhood into the fully-connected neural network to obtain output features of the target nodes. The neighborhood can be flexibly and effectively constructed for each node in the graph, and feature aggregation can be rapidly carried out, so that the graph embedding effect based on the graph neural network is improved.
Owner:GUILIN UNIV OF ELECTRONIC TECH

Active peptide embedded nanoparticle and preparation method thereof

The invention provides an active peptide embedded nanoparticle and a preparation method thereof and aims to solve the problem that albumen derived active peptides which are easily degradable in a gastrointestinal digestive system cannot be completely absorbed currently. By adoption of ionic gel, chitosan and sodium tripolyphosphate serve as nano coating materials to realize embedding of albumen derived active peptides, with four different molecular weights, obtained by enzymolysis, and consequently the albumen peptide-chitosan nanoparticle great in embedding performance is obtained. A gap in protection and promotion of biological absorption and utilization of the albumen derived active peptides is filled, a new idea is provided for deep processing in the industry of egg products, and resource integration and maximal reasonable application of the egg products are realized.
Owner:JILIN UNIV

Lutein ester microcapsule preparation and as well as preparation method and use thereof

The invention discloses a lutein ester microcapsule preparation and as well as a preparation method and a use thereof. The lutein ester microcapsule preparation is prepared from the following raw materials in parts by weight: 1 part of lutein ester, 8-11 parts of wall material, 0.001-0.03 parts of water-soluble emulsifier, 0.2-0.35 parts of water-soluble antioxidant, 0.1-0.3 parts of oil-soluble antioxidant, 2-3 parts of inulin and 20-40 parts of purified water. The preparation method comprises the following steps: adding the wall material, the water-soluble emulsifier and the water-soluble antioxidant into the purified water, mixing to dissolve so as to obtain a water phase, melting the lutein ester in the oil-soluble antioxidant to obtain an oil phase, adding the oil phase into the high-speed shearing water phase for emulsification, adding water solution of the inulin into the high-speed shearing water phase for uniform emulsification, carrying out high-pressure homogenization, and spraying and granulating the homogenized emulsification to obtain microcapsules with the particle size of 40-100 meshes. The invention also discloses the use of the lutein ester microcapsule preparation in the preparation of food, medicines and healthcare products with the functions of losing weight and / or protecting eyes. According to the lutein ester microcapsule preparation and as well as the preparation method and the use thereof disclosed by the invention, the obtained product has a high stability and has the functional effects of protecting eyes and losing weight.
Owner:CHENGUANG BIOTECH GRP CO LTD

DHA grease microcapsule powder containing protein polypeptides and preparation method of DHA grease microcapsule powder

The invention provides DHA grease microcapsule powder containing protein polypeptides and a preparation method of the DHA grease microcapsule powder. The microcapsule powder comprises the following components in percent by weight: 20.3-41.2% of protein polypeptides, 8.8-29.7% of protein, 8.8-28.8% of carbohydrates, 20-40% of DHA algal oil, 1% of an emulsifying agent and 0.2% of an antioxidant. The preparation method comprises the following steps: properly controlling the degree of hydrolysis of the protein to obtain a protein and polypeptide mixed wall material, emulsifying and mixing the wall material, a core material, the emulsifying agent and the antioxidant, carrying out high pressure homogenization, and finally carrying out spray drying to obtain the DHA grease microcapsule powder. The wall material of the prepared DHA microcapsule powder contains rich protein polypeptides, so that the microcapsule powder is easier to be digested and absorbed by a human body; and the microcapsule powder not only can be applied to formulas of common milk powder, rice flour, biscuits, milk beverages and the like but also can be applied to a formula of hydrolyzed protein, can be directly used as a solid beverage to be taken with water, and is particularly suitable for children and middle-aged and old people to eat.
Owner:HUBEI XINHE BIOTECH

Semiconductor device and manufacturing method of the same

The reliability of a semiconductor device having an embedded wire in the lowest layer wire is improved. In a main surface of a semiconductor substrate, MISFETs are formed and over the main surface, insulating films 10, 11 are formed. In the insulating films 10, 11 a contact hole is formed and a plug is embedded therein. Over the insulating film 11 in which the plug is embedded, insulating films 14, 15, 16 are formed and an opening is formed in the insulating films 14, 15, 16 and a wire is embedded therein. The insulating film 15 is an etching stopper film when etching the insulating film 16 in order to form the opening, containing silicon and carbon. The insulating film 11 has a high hygroscopicity and the insulating film 15 has a low moisture resistance, however, by interposing the insulating film 14 therebetween and making the insulating film 14 have a higher density of the number of Si (silicon) atoms than that of the insulating film 11, an electrically weak interface is prevented from being formed.
Owner:RENESAS ELECTRONICS CORP

Preparation method of high-all-trans carotenoid microcapsule

The invention provides a preparation method of a high-all-trans carotenoid microcapsule. The method comprises the following steps: 1) grinding carotenoid crystals with an all-trans isomer content of more than 96 percent, porous starch, vegetable oil and an antioxidant into carotenoid oil suspension through a ball mill; 2) mixing a protective colloid, carbohydrates and deionized water to obtain a protective colloid aqueous solution; 3) slowly adding the carotenoid oil suspension into the protective colloid aqueous solution, adjusting pH value, performing shearing at a high speed to obtain an oil-in-water primary emulsion of the carotenoid, and performing homogenization to obtain a carotenoid emulsion; and 4) spray drying the emulsion to obtain the carotenoid microcapsule. The method has theadvantages that: the porous starch is used as a core material carrier, oxidation of the carotenoid is effectively avoided, an all-trans structure of the carotenoid is ensured, the pH value of the emulsion is adjusted in the emulsion preparation process, and the embedding rate of the microcapsule and the product quality are improved.
Owner:WANHUA CHEM GRP CO LTD

Isolated soybean protein-curcumin nanoparticle conjugate and preparation method thereof

The invention provides an isolated soybean protein-curcumin nanoparticle conjugate and a preparation method thereof. The preparation method comprises the following steps: modifying isolated soybean proteins serving as a raw material through glutaminase to obtain isolated soybean protein nanoparticles; further combining curcumin to form the isolated soybean protein-curcumin nanoparticle conjugate; further researching the function of the isolated soybean protein-curcumin nanoparticle conjugate. The prepared isolated soybean protein-curcumin nanoparticle conjugate can be used for increasing the utilization rate of curcumin in food industry.
Owner:SOUTH CHINA UNIV OF TECH

Processing method before imbedding biological specimen

The invention relates to a processing method of biological specimens before embedment. The method is that the biological specimens is dipped into a processing solution prepared with formaldehyde withthe concentration of 37 to 40 percent per 37.5 to 42.5ml and 57.5 to 62.5g of carbamide for 1 to 3 days and then the specimens are transferred to place in an incubator of 30 to 40 DEG C for 1 to 4 hours and then the specimens are embedded with transparent urea-formaldehyde resin. The processing method has the advantages of effectively moisture removing, lower cost, simple operation, better embedment effect and anti-mildew, anti-pest and color preserving, and is especially applicable to the embedment of biological specimens with more water content, such as Flammulina, Craspedacusta, earthworms,small mollusks and fish, etc.
Owner:CHONGQING NORMAL UNIVERSITY

Method for embedding biological specimen with high water content

The invention relates to an encapsulating method for a biological specimen. The technical proposal adopted is that: a biological specimen is fixed, sterilized, antisepticised and cleaned, polyoxyethylene (PEG six hundred) is used to plasticize the specimen, the plasticized specimen is placed in a porcelain dish which is provided with absorbent paper, is then put into an incubator of thirty degrees to forty degrees for twelve to twenty-four hours and are finally fully integrated with a prepared transparent Lauxite until the preparation of specimen is completed. The encapsulating method has the advantages of a good encapsulating effect, mould proofing, insect prevention and color retention, which is particularly applicable to encapsulating the biological specimen with more water content, such as Craspedacusta, earthworms, mollusks and small-sized fishes.
Owner:CHONGQING NORMAL UNIVERSITY

Process for preparing honeycomb polyphenol extractive microcapsule by adopting spray drying method

The invention discloses a process for preparing a honeycomb polyphenol extractive microcapsule by adopting a spray drying method and belongs to the field of microcapsule preparation. The process comprises the steps: sieving honeycomb powder by a 40-mesh sieve, mixing the honeycomb powder passing through the 40-mesh sieve and deionized water with the liquid-material ratio being 20-40 / 1(w / v), fully stirring by adopting a magnetic water-bath stirring bar, extracting 6-8min at the temperature being 30-50 DEG C so as to obtain a honeycomb water extract liquid, concentrating the honeycomb water extract liquid to obtain a product of which the content of solid contents is more than 10%, adding 280-350ml of the honeycomb water extract liquid in maltodextrin in which the content of a solid propolis water extractive is within 65-75% and Arabic gum in which the content of a solid propolis water extractive is within 3-5%, blending to obtain a mixed solution, filtering the mixed solution to obtain filter liquor, and carrying out spray drying on the filter liquor under a condition that the feeding amount of a peristaltic pump is 300-400ml / h so as to obtain the honeycomb polyphenol extractive microcapsule. The honeycomb polyphenol extractive microcapsule prepared by adopting the process is spherical, smooth in appearance, free from cracks, capable of increasing the bioavailability of honeycomb polyphenol, and high in heat stability; the embedding rate can be up to 46.6%.
Owner:JIANGSU UNIV
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