376 results about "Water soluble polysaccharides" patented technology

An aqueous binder composition is provided that includes a carbohydrate and a crosslinking agent. In exemplary embodiments, the carbohydrate-based binder composition may also include a catalyst, a coupling agent, a process aid, a crosslinking density enhancer, an extender, a moisture resistant agent, a dedusting oil, a colorant, a corrosion inhibitor, a surfactant, a pH adjuster, and combinations thereof. The carbohydrate may be natural in origin and derived from renewable resources. Additionally, the carbohydrate polymer may have a dextrose equivalent (DE) number from 2 to 20. In at least one exemplary embodiment, the carbohydrate is a water-soluble polysaccharide such as dextrin or maltodextrin and the crosslinking agent is citric acid. Advantageously, the carbohydrates have a low viscosity and cure at moderate temperatures. The environmentally friendly, formaldehyde-free binder may be used in the formation of insulation materials and non-woven chopped strand mats. A method of making fibrous insulation products is also provided.

Fibrous insulation products have an aqueous binder composition that includes a carbohydrate and a crosslinking agent. In exemplary embodiments, the carbohydrate-based binder composition may also include a catalyst, a coupling agent, a process aid, a crosslinking density enhancer, an extender, a moisture resistant agent, a dedusting oil, a colorant, a corrosion inhibitor, a surfactant, a pH adjuster, and combinations thereof. The carbohydrate may be natural in origin and derived from renewable resources. Additionally, the carbohydrate polymer may have a dextrose equivalent (DE) number from 2 to 20. In at least one exemplary embodiment, the carbohydrate is a water-soluble polysaccharide such as dextrin or maltodextrin and the crosslinking agent is citric acid. Advantageously, the carbohydrates have a low viscosity and cure at moderate temperatures. The environmentally friendly, formaldehyde-free binder may be used in the formation of insulation materials and non-woven chopped strand mats. A method of making fibrous insulation products is also provided.

This invention relates to a composition and use application of aqueous fluidized polymer suspensions of water soluble polysaccharides and / or polyvinyl alcohol (PVA) for use in oil field applications such completion fluids, drilling fluids, fracturing fluids and oil well cement slurries as rheology / viscosity modifier and fluid loss reducer for use where the affect on the marine environment is to be minimized.

Bioabsorbable, water-soluble hemostatic cellulose based gauze matrix structures are described, including one or more species of chitosan, etherized cellulose, nonionic surfactant, water-soluble polysaccharide hydrocolloid and / or gum. Approximately 85% to 95% deacetylated decrystallized chitosan, present in an amount from about 2% to about 15% by weight, is found to be particularly advantageous. Favorable properties are found related to rapid stoppage of bleeding and bioabsorbability, among other properties.

An artificial plasma-like substance having at least one water soluble polysaccharide oncotic agent selected from the group consisting of high molecular weight hydroxyethyl starch, low molecular weight hydroxyethyl starch, dextran 40 and dextran 70, and albumin which is buffered by lactate and has a pre-administration pH of between 5 and 6.5 is disclosed. Also disclosed is an artificial plasma-like solution having at least two water soluble polysaccharide oncotic agents one of which is eliminated from the circulation slowly and the other of which is eliminated from the circulation quickly. Supplimentation of the plasma-like solution with certain ions is described. A system for administration of the plasma-like solution to a subject wherein the system comprises a first and second solution each having particular buffers is described. The plasma-like solution including cryoprotective adducts is also disclosed. The use of the plasma-like solution in organ transplant, novel chemotherapy procedures, and tissue, organ and organism cryopreservation are also disclosed.

The present invention provides a method of producing a polymer hydrogel comprising the steps of: (1) preparing an aqueous solution of a water soluble polysaccharide derivative and a polycarboxylic acid; (2) optionally agitating the solution, for example, by stirring; (3) isolating a polysaccharide derivative / polycarboxylic acid composite from the solution; and (4) heating the polysaccharide derivative / polycarboxylic acid composite at a temperature of at least about 80° C., thereby cross-linking the polysaccharide with the polycarboxylic acid. The invention also provides polymer hydrogels produced by the methods of the invention.

An artificial plasma-like substance having at least one water soluble polysaccharide oncotic agent selected from the group consisting of high molecular weight hydroxyethyl starch, low molecular weight hydroxyethyl starch, dextran 40 and dextran 70, which is buffered by lactate and has a pre-administration pH of between 4 and 6.5 is disclosed. In one embodiment, the artificial plasma-like solution may have at least two water soluble polysaccharide oncotic agents one of which is eliminated from the circulation slowly and the other of which is eliminated from the circulation quickly. Supplementation of the plasma-like solution with certain ions is described. A system for administration of the plasma-like solution to a subject wherein the system comprises a first and second solution each having particular buffers is described. Methods for the administration of the plasma-like solution are also disclosed.

The invention discloses a polyose nanometer material possessing antibiotic function and preparing method and application, which comprises the following steps: choosing water-soluble polyose material incorporating carboxy group or sulfonic group as basis material; loading metallic ion possessing bacterial inhibition active in water solution; setting metallic ion load capacity at 10-500mg / g and bacterial inhibition active at 99.9%; centrifugal separating; ultrasonic dispersing; freezing or spraying; drying; getting end product with particle diameter at 20-800nm. This invention can be used to textile industry, animal husbandry and medicine domain as antiviral drug.

An aqueous binder composition is provided that includes a carbohydrate and a crosslinking agent. In exemplary embodiments, the carbohydrate-based binder composition may also include a catalyst, a coupling agent, a process aid, a crosslinking density enhancer, an extender, a moisture resistant agent, a dedusting oil, a colorant, a corrosion inhibitor, a surfactant, a pH adjuster, and combinations thereof. The carbohydrate may be natural in origin and derived from renewable resources. Additionally, the carbohydrate polymer may have a dextrose equivalent (DE) number from 2 to 20. In at least one exemplary embodiment, the carbohydrate is a water-soluble polysaccharide such as dextrin or maltodextrin and the crosslinking agent is citric acid. Advantageously, the carbohydrates have a low viscosity and cure at moderate temperatures. The environmentally friendly, formaldehyde-free binder may be used in the formation of insulation materials and non-woven chopped strand mats. A method of making fibrous insulation products is also provided.

A particulate, free flowing but clumpable animal litter composition is composed of discrete, non-swelling, non-absorptive, calcium carbonate particles, and a fluid retention and clumping agent of at least one water-soluble polysaccharide. A non-toxic, biodegradable mineral oil can be used to partially coat the calcium carbonate particles.

This invention relates to water-soluble polysaccharide-based products that require less time and effort to incorporate into aqueous formulations, compared to existing polysaccharide products. This invention can be applied more particularly to cationic guar products to be used in cosmetic compositions. The product is in the form of granules and comprises a binding and / or dispersing agent and / or wetting agent.

A personal care composition is composed of:(a) from about 0.1% to about 99% by weight of a vehicle system which comprises a hydrophobically modified nonionic water soluble polysaccharide polymer which comprises a water soluble polysaccharide polymer backbone and a hydrophobic moiety selected from the group consisting of 3-alkoxy-2-hydroxypropyl group wherein the allyl moiety is a straight or branch chain having 2-6 carbon atoms, C3-C7 alky aryl alkyl, alkyl aryl groups and mixtures thereof, wherein the ratio of the hydrophilic portion to the hydrophobic portion of the polymer is from about 2:1 to 1000:1, and(b) at least one other personal care ingredient.This compostion can be used in a wide range of personal care products such as shampoos, conditioners, hair coloring and styling agents, soaps, body washing agents, underarm products, lubricating agents, oral care products, denture adhesives, sunscreen agents, make-up products, and the like.

The invention relates to a technique for extracting Grifola frondosa water-soluble polysaccharide. The technique is implemented by soaking raw material sporocarp of Grifola frondosa in water for 2-3h, ultrasonic extracting 2-4 times, regulating pH, depriving protein by papain enzymolysis process, adding activated carbon for decoloring, filtering decoloring solution by membranes for retaining and concentrating, precipitating with ethanol, and freeze drying to obtain the finished product. By adopting the technique to produce polysaccharide, cost is low, energy consumption is low, purity is high, and activity of Grifola frondosa polysaccharide is retained.

This invention relates to a field of pharmaceutical chemistry, relates to a process of extracting high water soluble polysaccharides from higher plants or fungi. The present invention discloses a process of extracting higher plants and fungi polysaccharides based on a microwave chemistry method, comprising: putting the residue or pulverized higher plants and fungi after being degreased by an organic solvent into a microwave reaction chamber to react with an acid solution; and then distilling to remove excess acid or washing with organic solvent to remove the acid; adding water solution for extraction, subjecting the extracting solution after concentration to alcohol precipitation, separating precipitates aka polysaccharides therefrom.The present invention has significant advantages like fast processing rate, high polysaccharides yield, low organic acid consumption and efficient and easy to recycle, low water consumption, low power consumption, etc., and obtained polysaccharides have high yield and purity, good water solubility, and good biological activity.

The problem to be solved by the invention is to provide a food or a drink containing an acidic protein which has a favorable flavor with relieved astringency characteristic to a protein dissolved under acidic conditions to thereby broaden the flavor variety of protein-containing foods or drinks. The above problem can be solved by adding a water soluble polysaccharide, a water soluble basic salt, an alkali metal salt of an organic acid, a basic monosaccharide, a basic oligosaccharide or the like to a food or a drink containing a protein dissolved under acidic conditions to thereby relieve the astringency originating in the protein dissolved under acidic conditions.

An fibrous insulation product is provided that includes a binder comprising a polyol and a phosphorus crosslinking agent derived from a phosphonic or phosphoric acid, salt, ester or anhydride to form crosslinked phosphodiester linkages. The polyol is polyvalent, but may be monomeric or preferably polymeric; and may be synthetic or natural in origin. Carbohydrate polysaccharides are exemplary polyols, including water-soluble polysaccharides such as dextrin, maltodextrin, starch, modified starch, etc. Additionally, the carbohydrate polymer may have a dextrose equivalent (DE) number from 2 to 20. In exemplary embodiments, the binder may also include a catalyst, a coupling agent, a process aid, and other additives. The environmentally friendly, formaldehyde-free binder may be used in the formation of residential and commercial insulation materials and non-woven chopped strand mats. A method of making fibrous products is also provided.

The invention discloses a method for comprehensively extracting various kinds of biologically active ingredients from mushroom dry powder; the technical proposal is as follows: firstly, extracting alcohol soluble substances; secondly, extracting mushroom proteins; thirdly, extracting water soluble polysaccharide of mushroom, fourthly, extracting alkali extraction water-insoluble polysaccharide and alkali extraction water soluble polysaccharide; fifthly, preparing mushroom fiber. The extracted constituents have different biological activities, for example, the alcohol soluble substances have strong antioxidation activity; the mushroom proteins are rich in essential amino acid; the lentinan has antineoplastic activity; and the mushroom fiber has the physiological function of a dietary fiber. Therefore, the extracted constituents can be used respectively.

A controlled release pharmaceutical dosage form for controlled release of an active ingredient, includes an active ingredient coated by a polymeric mixture of: at least a water insoluble polymer; and at least an indigestible water-soluble oligosaccharide. The use and method of making the same are also described.

An oral composition, suitable as a hypoglycemic agent, includes an isolate from the leaves of Gymnema sylvestre, having a specified molecular weight. The isolate has a molecular weight at least about 3000 Daltons as determined by molecular weight cut-off filtration. Glucose metabolism in a human patient can be regulated by dosage forms that contain the aforesaid isolate from the leaves of Gymnema sylvestre, in combination with a non-metabolizable, water-swellable polysaccharide such as the exudate of Sterculia urens, and a water-soluble polysaccharide such as guar gum. Optionally, the present oral compositions can include a physiologically acceptable calcium source, a physiologically acceptable metal carbonate salt, a physiologically acceptable chromium salt, and / or a physiologically acceptable vanadium compound. In addition, antioxidants such as ascorbic acid, cholecalciferol, d-α-tocopherol, the carotenoids, lycopene, lutein, and the like, can be included as well. The present compositions are useful for amelioration of cholesterolemia, obesity, chronic complications of diabetes and prophylaxis for patients predisposed to the foregoing.

The present invention relates to utilizing saccharide metabolism to produce extracellular water soluble polysaccharide and belongs to the field of bioengineering technology. The present invention provides strain, named Aureobasidium pullulans G-58 and with the preservation number of CGMCC No. 1234. The pullulan producing process with the strain includes fermentation culture, fermented liquid post-treatment, heat treatment, decolorizing, precipitation, desalting, drying and other steps. The pullulan product has light color, high polysaccharide content, excellent viscoelasticity, excellent emulsifying performance and plasticity, and no toxicity and harm, and may be used widely in food, medicine, cosmetics, etc.

The invention provides a wall breaking method for fresh and live ganoderma lucidum spores. In the method, undried fresh spores ejected by mature ganoderma lucidum fruit bodies or spores which have been dried and stored but are rehydrated and cultured at an appropriate temperature are taken as raw materials and subjected to temperature change, pressure difference puffing and drying by puffing equipment, the puffed ganoderma lucidum spores are directly subjected to wall breaking by an airflow ultramicro grinder, and the wall breaking rate is over 99 percent. In addition, the process has the characteristics that: the antioxidative activity of ganoderma lucidum water-soluble polysaccharides is increased, production cost is low, large-scale production and quality control are easy to implement,and the storage period at normal temperature is long.

The invention relates to an extracting and refining method of water soluble polysaccharide in berry of nitraria tangutorum bobr, in particular to a method extracting the water soluble polysaccharide from the berry of nitraria tangutorum bobr, which is characterized by comprising the following steps: firstly, refluxing and extracting the berry of nitraria tangutorum bobr by using ethanol with concentration of 70-90 percent at 40-80 DEG C, and filtering the refluxed and extracted berry of nitraria tangutorum bobr to obtain filter residue; secondly, refluxing and extracting the filter residue by using distilled water at 60-90 DEG C, and filtering the refluxed and extracted filter residue to obtain extracting solution; thirdly, concentrating the extracting solution to be 1 / 10-1 / 5 of primary volume, adding 3-5 times of ethanol with concentration of 95 percent, settling for 12-24h at 4 DEG C, eccentrically eliminating supernatant fluid and getting precipitation, and cooling and drying the precipitation to obtain nitraria tangutorum bobr polysaccharide powder; fourthly, adding the distilled water to dissolve the nitraria tangutorum bobr polysaccharide powder, removing protein for 8-13 times by using a Sevage method; fifthly, leading the polysaccharide removed protein to be processed by macroporous resin column, eluting by using distilled water until eluent is air color and transparent; sixthly, collecting the eluent, concentrating, dialyzing, depositing in alcohol, getting precipitation, and cooling and drying the precipitation to obtain polysaccharide powder.

A capsule in which an unstable active ingredient has been stabilized is obtained by lowering the moisture content of a solid preparation (granules, subtilis, tablets, etc.) containing a chemical unstable to moisture such as an imidazole PPI compound by drying or the like, and then filling in a capsule comprising a water-soluble polysaccharide such as pullulan as the main component or a PEG-containing gelatin capsule. For the further stabilization, the capsule per se may be dried. The capsule preparation thus obtained is a stable capsule preparation with the use of a capsule being stable at a low moisture content which contains a chemical unstable to moisture such as an imidazole compound.

The invention belongs to the technical field of food processing, and particularly relates to a method for synchronously extracting polysaccharides and proteins from high-temperature peanut meal. The method for synchronously extracting polysaccharides and proteins from the high-temperature peanut meal comprises the following steps: (1) pretreatment of raw materials; (2) fat enzymolysis; (3) fiber enzymolysis; (4) water-insoluble polysaccharide conversion; (5) centrifugal separation; (6) soluble polysaccharide extraction; (7) protein extraction. The action conditions of adopted enzymes are mild, fats and celluloses in the high-temperature peanut meal are subjected to enzymolysis by using various different enzymes, and polysaccharides and proteins in the high-temperature peanut meal are extracted, thereby improving the utilization rate of the peanut meal; polysaccharides and proteins obtained by using the method disclosed by the invention are not only high in yield, but also high in purity.

The invention discloses a preparation method of polysaccharide-based nanometer particles sensitive to tumor microenvironments. The preparation method comprises the steps: preparing an initiator solution by adding an initiator to a water-soluble polysaccharide solution and adjusting pH, then adding a monomer-containing solvent (or directly adding monomers) and a cross-linking agent sensitive to reducing environments for carrying out polymerization and cross-linking reaction so as to obtain nanometer particles, and finally carrying out dialysis or centrifugal treatment and freeze drying to obtain the polysaccharide-based nanometer particles sensitive to tumor microenvironments. The preparation method is green, pollution-free, high in yield, efficient and convenient in synthesis and low in cost; the prepared polysaccharide-based nanometer particles are high in solid content and uniform in particle sizes; due to introduction of the cross-linking agent sensitive to reducing environments, the nanometer particles sensitive to tumor microenvironments can be prepared and have a wide application prospect in aspects of design and application of carriers for tumor treatment.

The invention discloses a plastic stabilizer for wet-mixed mortar. The plastic stabilizer comprises the following components in parts by weight: 0.1-5 parts of a water retention agent, 0.1-5 parts of an air entraining agent, 0.1-1 part of a defoaming agent, 0.01-1 part of water soluble polysaccharide, 1-10 parts of a special effect retarder, 1-10 parts of a water reducing agent and 68-98 parts of water. The plastic stabilizer for the wet-mixed mortar, provided by the invention, is liquid, is beneficial for automatic feeding and metering, and overcomes the defects that most mortar additives on the market are solid powder products and cannot realize automatic metering. Meanwhile, the water retention rate of the plastic stabilizer for the wet-mixed mortar, provided by the invention, can reach 98%, so that the setting time of the mortar can be deferred to 10-72 hours.

An edible toy for cats is made from a base material made of edible material; and an edible coating for the base material. The base material can be any of hypromellose; an edible, water-soluble polysaccharide; fermented tapioca; fish gelatin, beef gelatin, catnip, valerian root or a combination thereof. The base material is combined with water, an inorganic pH buffer and a metal-ion bonding agent. A coating has flavors such as chicken, turkey, beef, pork, lamb, duck, seafood, freshwater fish, grass, catnip, valerian root, lemon grass, sweet grass or a combination thereof. Also disclosed is a method of making edible and medicated toys.

The present invention relates to one kind of composite collagen-base rack material and its preparation and use. The material includes collagen and water soluble polysaccharide, and the polysaccharide is at least one of chitosan, salt of algal polysaccharide, proteoglycan, cellulose, carrageenan, acacia and starch. Collagen has natural 3D fiber network structure. The preparation process of the rack material with skin of mammal as material includes elimination of subcutaneous tissue with splitting machine, water soaking, defatting, ash soaking, deashing, splitting, softening, compounding, and Co-60 irradiation to sterilize. Functional material may be added into the composite collagen-base rack material for preparing biological dressing, artificial epidermis, artificial corium and artificial composite skin, and the composite collagen-base rack material may be used together with corollary ointment. The rack material has excellent water and steam penetrability and absorption.