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53 results about "Water soluble polysaccharides" patented technology

Water-soluble polysaccharide was isolated from grapefruit with the method of water-dissolving and ethanolprecipitating. By single factor test and orthogonal experimental method, the extraction conditions of the water-soluble polysaccharide were investigated, which contained liquid-solid ratio, temperature, time and pH.

Puffed food raw material rich in water-soluble polysaccharides, preparation method and application thereof

The present invention discloses a puffed food raw material rich in water-soluble polysaccharides, its preparation method and application, and belongs to the field of food technology. The processing process is as follows: lotus root and black plum are added to water, boiled for 3-5 minutes, and then beaten and sieved to obtain lotus root pulp; yeast solution is added, and the lotus root pulp is fermented at low temperature, the fermentation temperature is 15-20°C, and the fermentation time is 20-30 hours; then Poria cocos pulp is added to the fermentation product, and fermentation is carried out at room temperature, the fermentation temperature is 22-26°C, and the fermentation time is 20-30 hours; the fermentation product is centrifuged, and the solid is dried at 70-90°C; the puffing conditions are: screw speed 70-90r / min, puffing temperature 70-80°C in zone I, 100-120°C in zone II, and 130-150°C in zone III. The puffed food raw material of this patent has a high content of water-soluble polysaccharides, and has the advantages of high puffing degree, strong tooth feel, juicy feeling and special flavor.
Owner:HUBEI JINGUI CHINESE TRADITIONAL MEDICINE ELECTUARY CO LTD

Preparation method and application of poria cocos water-soluble polysaccharide based on enzyme-alkali synergy

The invention discloses a poria cocos water-soluble polysaccharide preparation method based on enzyme-alkali synergy. The poria cocos water-soluble polysaccharide preparation method comprises the following steps: S1, crushing poria cocos to obtain poria cocos powder; mixing with ethanol, stirring and extracting; mixing with distilled water, stirring and extracting, and finally drying; s2, mixing the obtained system with a sodium hydroxide solution, stirring at room temperature, and centrifuging to obtain supernate; adjusting the pH value of the supernate by using an acetic acid solution, standing, repeatedly washing by using distilled water, and freeze-drying to obtain the alkali-soluble polysaccharide of the poria cocos; and S3, dissolving the obtained system in a sodium hydroxide solution, adding a compound enzyme, carrying out an enzymatic hydrolysis reaction, and carrying out enzyme deactivation, centrifugation, tetraploid volume ethanol precipitation, dialysis and freeze-drying on an enzymatic hydrolysate to obtain the poria cocos water-soluble polysaccharide. The invention provides a poria cocos water-soluble polysaccharide preparation method based on enzyme-alkali synergy, poria cocos alkali-soluble polysaccharide is used as a substrate, the poria cocos water-soluble polysaccharide is prepared by complex enzyme, and the extraction rate and activity of the poria cocos water-soluble polysaccharide are improved. The invention further discloses application of the poria cocos water-soluble polysaccharide.
Owner:JIANGXI NORMAL UNIV

Separation and extraction of neutral water-soluble polysaccharides from auricularia auricula and its new application

This invention discloses the isolation, extraction, and novel application of a neutral, water-soluble polysaccharide from Sophora japonica extract. The invention extracts a water-soluble, neutral polysaccharide with a molecular weight between 20-22 kDa. This invention uses the Sophora japonica extract to treat renal interstitial fibrosis. Multiple studies, including cellular and animal studies, have demonstrated that the traditional Chinese medicine Sophora japonica can inhibit renal interstitial fibrosis, making it a potential drug for clinical application and bringing greater benefits to patients with kidney disease.
Owner:FIRST AFFILIATED HOSPITAL OF DALIAN MEDICAL UNIV

Biodegradable and absorbable hemostatic composition and application thereof

The invention discloses a biodegradable and absorbable hemostatic composition and application thereof, and belongs to the technical field of medical materials. The technical problems that an existing hemostatic material is poor in biocompatibility, prone to causing anaphylactic reaction, poor in degradation and absorption performance, limited in hemostatic effect and the like are solved. According to the technical scheme, the hemostatic composition is characterized by being prepared from the following components in parts by weight: 0.03 to 10 parts of water-soluble polysaccharide and 90 to 99.97 parts of sodium carboxymethyl starch, the water-soluble polysaccharide is prepared from sodium hyaluronate, sodium alginate, carboxymethyl chitosan and carboxymethyl cellulose according to the mass ratio of (8 to 10): (0 to 2): (0 to 2): (0 to 2); the molecular weight of the sodium carboxymethyl starch is 105-106, and the substitution degree of the sodium carboxymethyl starch is 0.2-0.6%; the particle size of the hemostatic composition is 100-500 [mu] m, and the bulk density of the hemostatic composition is 0.2-0.3 g / cm < 3 >.
Owner:CHONGQING DATSING MEDICAL DEVICE CO LTD

Water-soluble plant-based preservative flavor packet and method of making same

The present application relates to the technical field of seasoning package, in particular to a water-soluble plant source preservative seasoning package and a preparation method thereof, the seasoning package raw materials include drinking water, brewing soy sauce, brewing vinegar, edible salt, pine mushroom seasoning, ginger, cumin, Sichuan pepper, star anise, cassia bark, yeast extract and water-soluble polysaccharide of Inonotus obliquus, the water-soluble polysaccharide of Inonotus obliquus and the water-soluble active ingredients of ginger, cumin, Sichuan pepper, star anise and cassia bark form a synergistic antibacterial system to achieve preservation; in the present application, by introducing water-soluble polysaccharide of Inonotus obliquus, a synergistic antibacterial system is constructed with the water-soluble active ingredients of ginger, cumin, Sichuan pepper, star anise and cassia bark, and on the premise of not adding chemical preservatives, synthetic flavor enhancers and artificial additives throughout the process, the broad-spectrum antibacterial effect of the standard chemical preservatives is realized.
Owner:JILIN QIANHEJU FOOD PROCESSING CO LTD

Composite natural antioxidant flavor seasoning based on capsanthin and preparation method of composite natural antioxidant flavor seasoning

The invention discloses a capsanthin-based composite antioxidant flavor seasoning and a preparation method thereof, and belongs to the technical field of food processing. The seasoning is composed of a capsanthin antioxidant premix and a basic flavor carrier. The premix is prepared by performing multi-layer adsorption and embedding on capsanthin extract vitamin E. The invention further discloses a preparation method of the premix. The oil-soluble capsanthin extract is effectively encapsulated in an internal hydrophobic region through the adsorption of the porous starch and a dual embedding structure, and meanwhile, the water-soluble polysaccharide is successfully loaded in a wall material network, so that efficient embedding of various active substances is realized. A synergistic stable system is constructed, the stability of the capsanthin is remarkably improved, fading and flavor deterioration of the product in the storage process are effectively delayed, and meanwhile the antioxidant activity of the capsanthin is fully utilized. The product is bright and lasting in color, pure in flavor, high in oxidation resistance, simple in preparation process and suitable for industrial production.
Owner:JIANGSU TEWEICONG FOOD CO LTD

Methods and compositions for freeze drying paramagnetic particles

Aspects of present disclosure include lyophilized pellets with a longer shelf life, compositions for making lyophilized pellets, and methods for making lyophilized pellets. The lyophilized pellet comprises paramagnetic particles comprising a surface capable of binding to an analyte; a sugar having a glass transition temperature greater than 65° C; or a mixture of two or more sugars, wherein the mixture has a glass transition temperature greater than 65° C; and a water-soluble polysaccharide, wherein the water-soluble polysaccharide has a higher molecular weight and a higher glass transition temperature than the sugar or the mixture of sugars.
Owner:ABBOTT RAPID DIAGNOSTICS INT UNLTD +1

Ecological slow-release carbon source and preparation method thereof

The invention relates to the technical field of sewage treatment, and particularly discloses an ecological slow-release carbon source and a preparation method thereof. The ecological slow-release carbon source comprises the following raw materials in parts by weight: 30-50 parts of beewax, 20-40 parts of water-soluble polysaccharide, 5-15 parts of a water-soluble polymer, 3-10 parts of a biodegradable elastomer and 10-20 parts of a porous mineral material. The hydrophilic property and the mechanical property of the slow-release carbon source with the beewax as the slow-release matrix can be improved under the condition that the slow-release characteristic of the slow-release carbon source with the beewax as the slow-release matrix is maintained.
Owner:江苏环保产业股份有限公司

Method for improving quality of marinated bean curd through WOW emulsion type controlled-release coagulator

The invention discloses a method for improving the quality of marinated bean curd through a WOW emulsion type controlled-release coagulator, and aims to overcome the defects of rough bean curd gel network and poor water binding capacity caused by too fast release of marinating liquid in the prior art. The method comprises the following steps: respectively preparing a composite inner water phase containing bittern tablets and gluconic acid-lactone, an oil phase containing a hydrophobic emulsifier and a structured outer water phase containing water-soluble polysaccharide; shearing and mixing the inner water phase and the oil phase to prepare a primary W / O emulsion, and homogenizing the primary W / O emulsion and the outer water phase to prepare the W / O / W multiple controlled-release coagulator; and finally, adding into hot soybean milk, standing, incubating, squeezing and forming. According to the preparation method disclosed by the invention, physical isolation of the multiphase emulsion and chemical phase change synergy of the double coagulators are utilized, so that the release rate of magnesium ions is effectively delayed, polysaccharide macromolecules directly participate in gel skeleton construction, a compact and uniform three-dimensional interpenetrating network is formed, the water binding capacity of the bean curd is remarkably improved, the dehydration rate is reduced, and the product is endowed with an excellent texture.
Owner:LIAONING ACAD OF AGRI SCI

A green plum polysaccharide component, a preparation method and application thereof

PendingCN122302120ADiabetes mellitusAlcohol
This invention belongs to the field of medicinal chemistry, specifically relating to a polysaccharide component from green plums, its preparation method, and its application. The invention first involves ethanol extraction of green plums (a dual-purpose medicinal and edible variety), separating the ethanol extract and the ethanol-extracted residue. The residue is then subjected to water extraction to remove protein, yielding a water-soluble crude extract. The ethanol extract and the water-soluble crude extract are then separated by macroporous adsorption resin column chromatography using pure water as the eluent, yielding a pure water eluent. The pure water eluent of the water-soluble crude extract is further fractionated and precipitated with alcohol to obtain different water-soluble polysaccharide alcohol-precipitated fractions. The ethanol-extracted polysaccharide component is obtained from the pure water eluent of the ethanol extract. The fractionated and ethanol-extracted polysaccharide components from green plums prepared using the method of this invention can be used to prepare drugs for the prevention and treatment of diabetes and kidney disease, exhibiting high safety and promising development and application prospects.
Owner:DALI UNIV

Polysaccharide aggregate composite hemostatic gauze and preparation method thereof

The invention discloses polysaccharide aggregate composite hemostatic gauze and a preparation method thereof, and relates to the field of biomedical materials.The polysaccharide aggregate composite hemostatic gauze is prepared by compounding polysaccharide aggregate on the surface of gauze, adding hydrophobic molecules and an activating agent into a water-soluble polysaccharide solution, and preparing the polysaccharide aggregate composite hemostatic gauze. The preparation method comprises the following steps: grafting a hydrophobic functional substance on a polysaccharide macromolecular main chain to prepare a polysaccharide assembly modified with hydrophobic molecules; adding adhesive molecules capable of mediating supramolecular acting force and an activating agent into the polysaccharide assembly solution, and modifying the adhesive molecules and the activating agent on the polysaccharide assembly to prepare a polysaccharide aggregate modified with hydrophobic and adhesive molecules; and finally, compounding the polysaccharide aggregate on the gauze in a dipping, spraying or spin-coating manner to obtain the polysaccharide aggregate composite hemostatic gauze. The sugar aggregate composite hemostatic gauze provided by the invention has good mechanical properties and proper blood absorption, can realize ultrafast hemostasis in a massive hemorrhage scene, and improves the survival rate of the wounded.
Owner:SHANGHAI JIAOTONG UNIV

Biomass microsphere for cosmetic injection and preparation method thereof

PendingCN120132044AMicrocapsulesProsthesisPotassium HyaluronateCellulose
The invention relates to the technical field of medical cosmetology, and particularly discloses biomass microspheres for cosmetic injection and a preparation method of the biomass microspheres. The biomass microsphere for cosmetic injection comprises a microsphere and a water-soluble polysaccharide coating, and the microsphere is one of a hydroxyapatite microsphere, a chitin microsphere, a chitosan microsphere and an acylated chitin / chitosan microsphere. The water-soluble polysaccharide coating is one of carboxyalkyl chitin, carboxyalkyl chitosan, hydroxyalkyl chitin, hydroxyalkyl chitosan, carboxyalkyl cellulose, sodium alginate, potassium alginate, sodium hyaluronate and potassium hyaluronate. The biomass microspheres for cosmetic injection prepared by the invention are used for filling pits, tightening skin, reducing wrinkles, reducing immune response and inflammatory response and improving the compactness and elasticity of the skin.
Owner:QINGDAO BIOTEMED BIOMATERIAL

Composite microecological preparation and application thereof in feed

The invention discloses a composite micro-ecological preparation and application thereof in feed, and belongs to the technical field of microorganisms, the composite micro-ecological preparation comprises lysinibacillus and mannan oligosaccharide, the lysinibacillus is preserved in the China Center for Type Microbiological Culture Collection, the preservation address is Wuhan University, Hubei Province, and the preservation number is CCTCC No.M20241816. The invention further discloses a preparation method of the composite micro-ecological preparation. The compound microecological preparation disclosed by the invention can be used for more remarkably reducing the content of aflatoxin B1 and increasing the content of water-soluble polysaccharide, and is beneficial to increasing the market value of a feed containing peanut meal, corn and / or soybean meal.
Owner:SHANDONG BUSINESS INST

A deep eutectic solvent for simultaneously extracting water-soluble and water-insoluble edible mushroom polysaccharides and application thereof

The application discloses a kind of eutectic solvent for simultaneously extracting water-soluble and non-water-soluble edible mushroom polysaccharides and its application, and belongs to the technical field of natural products extraction.The eutectic solvent for simultaneously extracting water-soluble and non-water-soluble edible mushroom polysaccharides according to the application is composed of n-octanoic acid and sodium octanoate;The molar ratio of n-octanoic acid and sodium octanoate is 2-3:1.The method of the application can realize the hydrophilic-hydrophobic switching of eutectic solvent by adjusting the pH value of the extraction system, and simultaneously extract water-soluble and non-water-soluble polysaccharides;The yield of extracted polysaccharides is higher.
Owner:SHANXI AGRI UNIV

Co-production method for synchronously preparing high-content polysaccharide and beta-glucan

The invention discloses a co-production method for synchronously preparing high-content polysaccharide and beta-glucan. The co-production method comprises the following steps: (1) mushroom raw material treatment: crushing raw materials for later use; (2) degreasing treatment: adopting a full-closed solvent circulation workstation, and intelligently proportioning dichloromethane to ethanol according to the ratio of 8: 2 (V / V); drying the material slag; (3) weak base protein removal: carrying out gradient heating on the filter residue obtained in the step (2) by using a weak base aqueous solution, and collecting the filter residue; (4) extracting polysaccharide with boiling water, and collecting filtrate; and (5) fractional alcohol precipitation: precipitating under the ethanol concentration of 70-80%, and drying to obtain a high-content water-soluble polysaccharide product. And further increasing the concentration of ethanol in the supernate to 85-95% of ethanol, precipitating and drying to obtain a high-content beta-glucan product. The invention develops a combined extraction process which can efficiently extract mushroom polysaccharide and beta-glucan at the same time, realizes comprehensive utilization of raw materials, reduces the production cost and can effectively retain the biological activity of the mushroom polysaccharide and beta-glucan.
Owner:NINGBO J&S BOTANICS INC

Method for the production of a culture medium composition for the suspension culture of adherent cells

Provided is a method for producing a culture medium composition for suspension culture of adherent cells, the method comprising the following steps: step (i), loading extracellular matrix onto nanofibers composed of non-water-soluble polysaccharides, and step (ii), adding the extracellular matrix-loaded nanofibers obtained in step (i) to a culture medium.
Owner:NISSAN CHEM CORP

A nanocellulose-based antibacterial and antioxidant wound indicating hydrogel and a method of preparing the same

The application belongs to the technical field of hydrogel, and particularly relates to a nanocellulose-based antibacterial and antioxidant wound indicating hydrogel and a preparation method thereof. The hydrogel is prepared by physical cross-linking and chemical cross-linking of water, aldehyde-modified nanocellulose, water-soluble polysaccharide derivatives and anthocyanin. The aldehyde-modified nanocellulose is prepared from nanocellulose extracted from cotton and hemp plants through aldehyde modification treatment of sodium periodate. The water-soluble polysaccharide derivatives are one or more of carboxymethyl chitosan or quaternary ammonium salt chitosan. The anthocyanin is blueberry anthocyanin. Hydrogen bonds are formed between the aldehyde-modified nanocellulose, the water-soluble polysaccharide derivatives and the blueberry anthocyanin, and imine bonds are formed between the aldehyde-modified nanocellulose and the water-soluble polysaccharide derivatives. The hydrogel is used as a wound monitoring dressing.
Owner:DONGHUA UNIV

Emulsions for use in oral and cosmetic formulations

Emulsions for oral and cosmetic formulations free from sorbitan polyoxyethylene ethers esterified with fatty acids, comprising: a) a hydropolyol phase b) an oil phase; c) emulsifying agents; d) at least one water-soluble polysaccharide of plant origin; e) at least one lipophilic or hydrophilic active agent or a plant extract; wherein said hydropolyol phase a) comprises at least water, a polyol and a base the emulsifying agents c) consist of c1) ascorbyl palmitate and c2) at least one sucrose ester of fatty acids These emulsions are characterized by having the dispersed phase consisting of micelles of average size comprised between 90 and 800 nm measured by Dynamic Light Scattering (DLS).
Owner:LABOMAR

Emulsified composition and method for producing the same

This invention provides a W / O / W type emulsion composition suitable for use as a cosmetic, which has a novel appearance with high aesthetic appeal, and an efficient method for producing the same. [Solution] This is a W / O / W type emulsion composition in which a dispersed phase consisting of a W / O type emulsion is dispersed in a visible linear form within a continuous phase consisting of an aqueous gel containing a water-soluble polymer. Carbomer or water-soluble polysaccharides are preferred as the water-soluble polymer, and the oil phase of the W / O type emulsion preferably contains a water-retaining oil. This O / W type emulsion composition can be obtained by mixing an aqueous gel containing a water-soluble polymer with a W / O type emulsion, and then stirring and mixing it using a rotary mixer equipped with stirring blades at a peripheral speed of 1 to 10 m / s.
Owner:JO COSMETICS

Preparation method of micro-nano multi-compartment polysaccharide colloid material

The invention belongs to the field of new materials, and particularly relates to a preparation method of a micro-nano multi-compartment polysaccharide colloid material. According to the method, a solvent replacement mechanism and microfluidic shear regulation are combined, precipitation, spontaneous aggregation and interface coating of polysaccharide polymers are sequentially achieved through a multi-stage reaction path, and multi-compartment particles which are stable in structure and clear in space partition are constructed. The used raw materials are water-soluble polysaccharides or fat-soluble polysaccharides, functional molecules can be accurately loaded in different areas of the particles, cross interference of components is avoided, and the particles have good environmental adaptability and functional modularization characteristics. The method does not need an emulsion template or a surfactant, the operation process is mild, simple and convenient, the particle structure is uniform, and the method is suitable for large-scale continuous preparation and multi-scene application.
Owner:TIANJIN UNIV OF SCI & TECH

Method for solid state fermentation of poria cocos by purple monascus csu-m183 and enzyme coordination

The application provides a method for solid-state fermentation of poria cocos by purple monascus CSU-M183 and enzymes, and the method is characterized in that: the method is a biological transformation method, and the traditional Chinese medicine poria cocos is used as raw material, and the poria cocos is subjected to bidirectional solid-state fermentation by enzyme pretreatment and purple monascus CSU-M183 to improve the yield of Monacolin K, water-soluble polysaccharides and triterpenoid compounds, and no citrinin is generated. The method improves the efficient utilization of poria cocos resources, increases the added value of the poria cocos, provides a new processing technology guidance for poria cocos products, and provides a method for saving resources, reducing cost and high safety for high-value comprehensive utilization of the traditional Chinese medicine poria cocos.
Owner:CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY

Preparation method of beautiful millettia root water-soluble polysaccharide

The preparation method comprises the following steps: (1) ultrasonic-assisted hot water extraction, (2) micro-filtration membrane rough filtration, (3) concentration, (4) alcohol precipitation, (5) ethanol decoloration, (6) polysaccharide redissolution, (7) Sevag method deproteinization, (8) rotary evaporation, (9) ultrafiltration and (10) freeze-drying. The MSCP prepared by the preparation method of the present application inhibits excessive secretion of NO and IL-1beta (plt; 0.05) plays an anti-inflammatory role, and the potential application value of the compound as a natural anti-inflammatory agent is prompted.
Owner:HIN SANG HEALTH & MEDICAL (GUANGDONG) CO LTD +1

Preparation method of health-preserving white tea

The invention relates to the technical field of tea processing, in particular to a preparation method of health-preserving white tea, which comprises the following steps: pretreating Juncao ganoderma lucidum; preparing a white tea base material; mixing the ganoderma lucidum slices and the finished white tea according to the weight ratio of 1: 4 to obtain a mixture; performing low-temperature aroma enhancement: putting the mixture into a drying oven at 50-60 DEG C, and performing static aroma enhancement for 1.5-2 hours; and shaping and drying. The preparation method has the beneficial effects that traditional lucid ganoderma is replaced by the grass-cultivated lucid ganoderma, and a low-temperature drying process is combined, so that the problem of water-soluble polysaccharide loss in the cooking process is effectively avoided, active ingredients in the lucid ganoderma are reserved to the greatest extent, and the quality and efficacy of the product are improved; according to the invention, the dried ganoderma lucidum slices are directly mixed with the white tea, so that the defect that thick substances such as thearubigins cover the faint scent of ganoderma lucidum in the traditional fermentation process is avoided, the flavor and taste of ganoderma lucidum are effectively improved, and meanwhile, the introduction of irritant theophylline is reduced.
Owner:FUJIAN PINPINXIANG TEA IND CO LTD

A biodegradable absorbable hemostatic composition and uses thereof

The application discloses a biodegradable absorbable hemostatic composition and application thereof, and belongs to the technical field of medical materials. The technical problems to be solved are that existing hemostatic materials have poor biocompatibility, can easily cause allergic reactions, have poor degradation and absorption performance, and have limited hemostatic effect. The technical solution points are that the hemostatic composition comprises, in terms of weight percentage, 0.03-10 parts of water-soluble polysaccharide and 90-99.97 parts of sodium carboxymethyl starch; the water-soluble polysaccharide is composed of sodium hyaluronate, sodium alginate, carboxymethyl chitosan and carboxymethyl cellulose with a mass ratio of 8-10:0-2:0-2:0-2; the molecular weight of the sodium carboxymethyl starch is 10 5 ‑10 6 , and the degree of substitution is 0.2-0.6%; the particle size of the hemostatic composition is 100-500 mu m, and the bulk density is 0.2-0.3 g / cm 3 .
Owner:CHONGQING DATSING MEDICAL DEVICE CO LTD

Sea bird's nest composite food and preparation method thereof

The invention provides a sea cubilose composite food and a preparation method thereof, the sea cubilose composite food comprises a sea cubilose extract and cubilose or cubilose powder, and the sea cubilose extract comprises water-soluble polysaccharide dietary fibers extracted from corallina erythraea. According to the technical scheme provided by the invention, the convenient composite food has the nutritional activity of the cubilose and the dietary fiber function of the sea cubilose, and can be eaten only by being brewed with water, so that the health value and the use convenience of the product are remarkably improved.
Owner:QINGDAO MIAOHAO MARINE BIOTECHNOLOGY CO LTD

Modified water-soluble polysaccharides with different cationic types for chemical mechanical planarized slurries

Synthesis of cationically modified water soluble polysaccharides is disclosed. And the positive ions are laterally connected to the polysaccharide main chain. A chemical mechanical planarization (CMP) slurry includes an abrasive; an activator; an oxidant; an additive comprising a cationically modified water soluble polysaccharide; and water. The use of synthetic cation-modified water-soluble polysaccharides in CMP slurries reduces sagging and erosion in high selectivity tungsten slurries.
Owner:VERSUM MATERIALS US LLC

Nano-cellulose-based antibacterial antioxidant wound indicating hydrogel and preparation method thereof

The invention belongs to the technical field of hydrogel, and particularly relates to nanocellulose-based antibacterial antioxidant wound indicating hydrogel and a preparation method thereof, and the hydrogel is prepared from water, aldehyde modified nanocellulose, a water-soluble polysaccharide derivative and anthocyanin through physical crosslinking and chemical crosslinking; the aldehyde modified nanocellulose is prepared by taking nanocellulose extracted from cotton and linen plants as a raw material and carrying out aldehyde treatment on the nanocellulose through sodium periodate; the water-soluble polysaccharide derivative is one or more of carboxymethyl chitosan or quaternary ammonium salt chitosan; the anthocyanin is blueberry anthocyanin; hydrogen bonds are formed among the aldehyde modified nanocellulose, the water-soluble polysaccharide derivative and the blueberry anthocyanin, and imine bonds are formed between the aldehyde modified nanocellulose and the water-soluble polysaccharide derivative; the hydrogel is used as a wound monitoring dressing.
Owner:DONGHUA UNIV

Antibacterial and anticoagulant coating material for blood contact material and application of antibacterial and anticoagulant coating material

The invention belongs to biomedical materials, and particularly relates to an antibacterial and anticoagulant coating material for a blood contact material and application of the antibacterial and anticoagulant coating material. The antibacterial and anticoagulant coating material comprises copper tetracarboxyl phenyl porphyrin loaded with an anticoagulant and water-soluble polysaccharide. A coating formed on the basis of the antibacterial and anticoagulant coating material can achieve antibacterial and anticoagulant effects at the same time, for example, the bacteriostasis rate on escherichia coli and the bacteriostasis rate on staphylococcus epidermidis can reach 90%; in addition, the activated part thromboplastin time, prothrombin time and thrombin time of the coating are obviously higher than those of an untreated blood contact material; and the hemolysis rate is lower than 5%.
Owner:CHONGQING TIANWAITIAN BIOTECHNOLOGY CO LTD

Green polysaccharide macromolecular space mud material as well as preparation method and application thereof

The invention discloses a green polysaccharide polymer space mud material as well as a preparation method and application thereof, and belongs to the technical field of polymer material preparation. The polysaccharide microsphere comprises the following raw materials in percentage by mass: 1%-30% of water-soluble polysaccharide, 5%-30% of microspheres, 60%-85% of water, 0.05%-20% of a colloid stabilizer and 0%-5% of an auxiliary agent. Natural polysaccharide hydrogel is used as a continuous phase, a colloid stabilizer and microspheres are introduced, fine dispersion and controllable water loss are coordinated, a molecular chain is regulated and controlled, a stable amorphous three-dimensional network structure is constructed, and the structure and performance of the material are optimized; and the green polysaccharide polymer space mud material with the characteristics of lasting water-retaining property, long-acting flexibility, stretchability, high plasticity and biodegradability is successfully prepared. The space mud material is expected to break through the application limitation of the existing space mud material, and shows important value in multiple fields such as children intelligence development, adult emotion regulation, hand function rehabilitation, psychological adjuvant therapy, model preparation, sculpture materials and the like.
Owner:QINGDAO UNIV

Method for inducing generation of water-soluble pachymaran

PendingCN121046486AOrganic active ingredientsFungiBiotechnologyWolfiporia cocos
The invention belongs to the technical field of fermentation, and particularly relates to a method for inducing generation of water-soluble pachymaran. According to the method, Wolfiporia cocos and Trichoderma longibrachiatum are subjected to staged co-culture, and low-temperature stress at the temperature of 15 DEG C is applied to the key stage of co-culture. The specific strain combination and low-temperature induction have a synergistic effect, so that a water-soluble polysaccharide synthesis and secretion pathway of the poria cocos bacteria is remarkably activated, and the technical bottlenecks of low water-soluble polysaccharide proportion and low yield in the existing fermentation process are solved. The yield of the prepared water-soluble pachymaran can reach 2.35 g / L, the immunoregulatory activity of the water-soluble pachymaran is excellent, macrophages can be effectively promoted to secrete key cell factors such as IL-6 and IL-1beta, and a new technical scheme is provided for developing efficient and high-value pachymaran products.
Owner:HUNAN BUTIAN PHARMA