55 results about "Alpha glucan" patented technology

Medical-use two-part adhesive comprising; first part comprised of an aqueous solution or a powder of aldehyde-groups-introduced alpha-glucan; and second part comprised of an aqueous solution or a powder of amino-groups-containing polymer that is formed of a polymer chain of amino-group-containing units and has a molecular weight in a range of 1000 to 20,000; as well as medical-use hydrogel resin obtained by curing the adhesive. A mixture of the first and second parts, at a time of mixing them to form the hydrogel has pH in a range of 5.0 to 8.0. In a preferred embodiment, the amino-groups-containing polymer is epsilon-poly-L-lysine produced by microorganism or by enzyme.

The present invention has objects to provide a glucan useful as water-soluble dietary fiber, its preparation and uses. The present invention solves the above objects by providing a branched α-glucan, which is constructed by glucose molecules and characterized by methylation analysis as follows:(1) Ratio of 2,3,6-trimethyl-1,4,5-triacetyl-glucitol to 2,3,4-trimethyl-1,5,6-triacetyl-glucitol is in the range of 1:0.6 to 1:4;(2) Total content of 2,3,6-trimethyl-1,4,5-triacetyl-glucitol and 2,3,4-trimethyl-1,5,6-triacetyl-glucitol is 60% or higher in the partially methylated glucitol acetates;(3) Content of 2,4,6-trimethyl-1,3,5-triacetyl-glucitol is 0.5% or higher but less than 10% in the partially methylated glucitol acetates; and(4) Content of 2,4-dimethyl-1,3,5,6-tetraacetyl-glucitol is 0.5% or higher in the partially methylated glucitol acetates; a novel α-glucosyltransferase which forms the branched α-glucan, processes for producing them, and their uses.

Medical-use two-part adhesive comprising; first part comprised of an aqueous solution or a powder of aldehyde-groups-introduced alpha-glucan; and second part comprised of an aqueous solution or a powder of amino-groups-containing polymer that is formed of a polymer chain of amino-group-containing units and has a molecular weight in a range of 1000 to 20,000; as well as medical-use hydrogel resin obtained by curing the adhesive. A mixture of the first and second parts, at a time of mixing them to form the hydrogel has pH in a range of 5.0 to 8.0. In a preferred embodiment, the amino-groups-containing polymer is epsilon-poly-L-lysine produced by microorganism or by enzyme.

Personal care compositions containing at an alpha-glucan and / or beta-glucan; at least one additional skin and / or hair care active selected from the group consisting of sugar amine, vitamin B3, retinoids, peptides, phytosterol, dialkanoyl hydroxyproline, hexamidine, salicylic acid, n-acyl amino acid compounds, sunscreen actives, water soluble vitamins, oil soluble vitamins, hesperedin, mustard seed extract, glycyrrhizic acid, glycyrrhetinic acid, carnosine, Butylated Hydroxytoluene (BHT) and Butylated Hydroxyanisole (BHA), menthyl anthranilate, cetyl pyridinium chloride, ergothioneine, vanillin or its derivatives, diethylhexyl syrinylidene malonate, melanostatine, sterol esters, tetrahydrocurcumin, their derivatives, their precursors, and combinations thereof; and a dermatologically acceptable carrier.

The invention discloses a method for extracting water soluble beta glucan from fruit bodies of hericium erinaceus, which comprises the steps of: adopting the fruit bodies of the hericium erinaceus as an extraction raw material; performing alkali extraction, ethanol deposition, alpha amylase hydrolysis and acid hydrolysis; and drying a precipitate after the ethanol deposition to obtain the water soluble beta glucan. The method also solves the problem of poor water solubility of beta glucan when alpha glucan is removed; polysaccharide obtained by the method is soluble beta glucan, the polysaccharide, namely the beta glucan of the fruit bodies of the hericium erinaceus has high content, and the average molecular weights are between 2,000 and 200, 000 daltons; and the water soluble beta glucan has excellent water solubility and can be used as a raw material for preparing medicaments, health care products and food.

The invention discloses chlamydomonus nivalis cream and a preparing method thereof. The chlamydomonus nivalis cream is prepared from carbomer, chlamydomonus nivalis extracts, alpha-glucan, chicory fructo-oligosaccharide, jellyfish collagen, Algisium C, phenoxyethanol, 3-[2-(Ethylhexyl)oxyl]-1,2-propandiol, triethanolamine, ethanol, microcrystalline wax, base emulgator, texture agent and water. The chlamydomonus nivalis cream is composed of oil capsules and aqua gel. Water and oil double films are formed when the cream is used, oil gel and hydrogel interact, the white oil capsules dissolve after the product is applied to skin, and the functions of protecting skin and delivering oil particles and nutrients to skin are realized through the formation of the water film peculiarly formed by the hydrogel and the formation of the oil film. Meanwhile, the comprehensive nursing type chlamydomonus nivalis cream is easy and convenient to use.

The invention discloses a cosmetic composition for relieving senescence. The composition is prepared from the following components: rock rose extract, fructus evodiae extract, achillea millefolium extract, saussurea involucrata extract, bamboo leaf flavonoid, alpha-glucan, rhamnogalacturonan, glutamic acid, sweet almond oil, metallothionein, caffeine, pitaya enzyme, ursolic acid, fermiskin, vitamin E, lecithin, caprylyl / capryl polyethylene glycol glucoside, 1,2-propylene glycol, isopropyl myristate and deionized water. The cosmetic composition has the advantages of application safety, stability, attractive appearance, small skin irritation and no greasy feeling, and can quickly infiltrate skin to achieve the effect of relieving senescence since the effective ingredients are reasonably mixed and synergized jointly. The invention further discloses a method for preparing the cosmetic composition. The method has simple process steps, strong operability, no special requirement for equipment and low preparation cost. The product prepared by the method has good stability and attractive appearance.

Personal care composition including a first skin and / or hair care active cetyl pyridinium chloride; and at least one additional skin and / or hair care active selected from the group consisting of tetrahydrocurcumin, sugar amine, vitamin B3, retinoids, hydroquinone, peptides, phytosterol, dialkanoyl hydroxyproline, hexamidine, salicylic acid, n-acyl amino acid compounds, sunscreen actives, water soluble vitamins, oil soluble vitamins, hesperedin, mustard seed extract, glycyrrhizic acid, glycyrrhetinic acid, carnosine, Butylated Hydroxytoluene (BHT) and Butylated Hydroxyanisole (BHA), ergothioneine, vanillin or its derivatives, diethylhexyl syrinylidene malonate, melanostatine, sterol esters, idebenone, dehydroacetic acid, Licohalcone A, creatine, creatinine, feverfew extract, yeast extract, beta glucans, alpha glucans, their salts, their derivatives, their precursors, and / or combinations thereof; and a dermatologically acceptable carrier. The invention further relates to methods for regulating the condition of mammalian keratinous tissue wherein the methods each comprise the step of topically applying to the keratinous tissue of a mammal needing such treatment, a safe and effective amount of the personal care composition of the invention.

An enzymatically produced soluble α-glucan fiber composition is provided suitable for use as a digestion resistant fiber in food and feed applications. The soluble α-glucan fiber composition can be blended with one or more additional food ingredients to produce fiber-containing compositions. Methods for the production and use of compositions comprising the soluble α-glucan fiber are also provided.

An enzymatically produced soluble α-glucan fiber composition is provided suitable for use as a digestion resistant fiber in food and feed applications. The soluble α-glucan fiber composition can be blended with one or more additional food ingredients to produce fiber-containing compositions. Methods for the production and use of compositions comprising the soluble α-glucan fiber are also provided.

The invention relates to a method for obtaining an active ingredient having an immediate anti-wrinkle and skin-tensioning effect, by extracting and purifying high molecular weight polysaccharides from oat bran, fibers and / or grains, and solubilizing and stabilizing the polysaccharides in water. The invention also relates to the product thus obtained, to uses thereof, and to cosmetic compositions containing this active ingredient. The oat bran polysaccharides include alpha-glucans having a molecular weight of between 25 kDa and 300 kDa.

An enzymatically produced soluble α-glucan fiber composition is provided suitable for use as a digestion resistant fiber in food and feed applications. The soluble α-glucan fiber composition can be blended with one or more additional food ingredients to produce fiber-containing compositions. Methods for the production and use of compositions comprising the soluble α-glucan fiber are also provided.

An enzymatically produced soluble α-glucan fiber composition is provided suitable for use as a digestion resistant fiber in food and feed applications. The soluble α-glucan fiber composition can be blended with one or more additional food ingredients to produce fiber-containing compositions. Methods for the production and use of compositions comprising the soluble α-glucan fiber are also provided.

The invention discloses a kit for quantitatively detecting alpha-glucan by monoclonal antibody immunonephelometry. The kit comprises alpha-glucan antibody freeze-drying powder, an antibody diluent, a sample diluent and a standard substance, wherein the alpha-glucan antibody freeze-drying powder is freeze-drying powder of IgM type monoclonal antibody purified in mouse ascites where a hybridoma cell strain D9 with a preservation number of CCTCCC2010107 (China Center for Type Culture Collection C2010107) is injected. The quantitative detection kit provided by the invention has the characteristics of simpliness and convenience in operation, good repeatability, high sensitivity and simple test conditions, is suitable for detection of an alpha-glucan immune complex separated out from a determination reaction system, and is suitable for sugaring processes of cane juice, raw sugar, white granulated sugar, brown granulated sugar, syrup, molasses and the like.

A method of producing glycogen comprising a step of: allowing a branching enzyme having the ability to synthesize glycogen to act on a substrate in a solution to produce a glycogen, wherein the substrate is an α-glucan being linked mainly with α-1,4-glucosidic bonds and having a degree of polymerization of 4 or more, and the number-average molecular weight of saccharides in the solution before initiation of the reaction is more than 180 but not more than 150,000. (The branching enzyme activity of the branching enzyme) / (the molecular-weight-decreasing activity of the branching enzyme) can be 500 or less. The branching enzyme can be a thermostable branching enzyme.

An object of the present invention is to provide a glucosamine-containing glucan, a modified product and a conjugate thereof. The glucosamine-containing glucan of the present invention is a glucosamine-containing glucan wherein the glucan has a plurality of non-reducing ends and at least one glucosamine residue is bound via an α-1,4-bond to each of two or more non-reducing ends of the branched α-1,4-glucan, but no glucosamine residue is present at a position other than the non-reducing ends of the branched α-1,4-glucan, wherein the degree of polymerization of the glucan is 15 or more and 4×105 or less. The glucosamine-containing glucan of the present invention can be provided by allowing an α-glucan phosphorylase to act on an aqueous solution comprising a branched α-1,4-glucan and glucosamine-1-phosphate.

A method for production of an α-glucan from a β-1,4-glucan is provided, comprising: reacting a solution containing β-1,4-glucan, a primer, a source of phosphoric acid, β-1,4-glucan phosphorylase, and α-1,4-glucan phosphorylase to produce an α-glucan. In this method, said β-1,4-glucan may be cellobiose, and said β-1,4-glucan phosphorylase may be cellobiose phosphorylase.

The purpose of the present invention is to provide a glucosamine-containing glucan, a modified product of the glucosamine-containing glucan and a conjugate of the glucosamine-containing glucan. This glucosamine-containing glucan is a glucosamine-containing glucan wherein at least one glucosamine residue is bound, by an alpha-1,4 bond, to each of two or more non-reducing terminals among a plurality of non-reducing terminals of a branched alpha-1,4 glucan but no glucosamine residue is present at any position other than non-reducing terminals of the branched alpha-1,4 glucan, and the glucan has a polymerization degree from 15 to 4*10<5> (inclusive). This glucosamine-containing glucan can be provided by having alpha-glucan phosphorylase act on an aqueous solution that contains a branched alpha-1,4 glucan and glucosamine-1-phosphate.

The invention discloses a natural tooth cleaning mousse foam composition, which comprises: acerola cherry fruit powder, a green tea extract, a peony root extract, a panax notoginseng extract, an aloe extract, a peppermint extract, a honeysuckle extract, a rice husk extract, a lemon extract, a clove extract, a lotus extract, a Korean angelica sinensis extract, a zanthoxylum nitidum extract, a natural foaming agent, edible glycerol, erythritol, sodium alpha-glucan, xylitol, fructooligosaccharide, and water. According to the present invention, the product is foam-like, and the active ingredients can be rapidly and uniformly attached to the teeth and penetrate into the spaces between the teeth, such that the cleaning function can be effectively provided, and the functions of tooth decay prevention, tooth whitening, gingiva strengthening, tartar clearing and the like can be comprehensively provided.

The specification provides methods of obtaining a genetically modified plant which has increased production potential compared to a control plant, the method comprising the steps of i) obtaining a plurality of plants at least one of which comprises in its genome a heterologous polynucleotide, ii) identifying from the plurality of plants a plant which has increased production potential relative to the control plant and comprises the heterologous polynucleotide, and iii) selecting the genetically modified plant, wherein the polynucleotide comprises a transcriptional control sequence operably linked to a nucleic acid sequence which encodes an agent that modifies endogenous starch phosphorylation and / or starch degradation in the plant. In some embodiments, the plant has increased endogenous glycosylase or increased digestibility compared to a control plant. In some specific embodiments, the endogenous starch phosphorylation and / or starch degradation is modified by modifying expression or activity of one or more enzymes selected from the group consisting of alpha-amylase (EC 3.2.1.1), beta-amylase (EC 3.2.1.2), glucoamylase (EC 3.2.1.3), starch phosphorylase (EC2.4.1.1), glycosylase (EC 3.1.33), sucrase-isomaltase (EC 3.2.10), amylomaltase (EC 2.4.1.25), maltase (EC 3.2.1.20), isoamylase, and a-glucan, water dikinase (GWD, EC 2.7.9.4).

The invention relates to the technical field of environmentally friendly adsorption materials, in particular to a high-efficiency adsorption material for flue gas purification. The adsorption materialis composed of a catalytic adsorption carrier and an absorption layer attached to the surface of the catalytic adsorption carrier. The catalytic adsorption carrier includes activated carbon, siliconnitride, zeolite powder, titanium dioxide, aluminum sulfate, nano zinc oxide, polyvinyl alcohol and water. The absorption layer includes pregelatinized starch, glucan, ethylene urea, diethylenetriamine, histidine, nano silver glue, dicumyl peroxide and deionized water. The titanium dioxide is anatase type titanium dioxide or rutile titanium dioxide. The glucan is dextran type alpha-glucan. The adsorption material has a very good cleaning effect on gas pollutants, organic volatile pollutants and heavy metal pollutants and the like in the flue gas.

An α-glucan phosphorylase having improved thermostability, which obtained by modifying natural α-glucan phosphorylase, and a method for producing this α-glucan phosphorylase having improved thermostability are provided. The natural α-glucan phosphorylase is derived from a plant, this α-glucan phosphorylase having improved thermostability has an amino acid residue which is different from that of the natural α-glucan phosphorylase in at least one position selected from the group consisting of a position corresponding to position 4 in a motif sequence 1L or 1H, a position corresponding to position 4 in a motif sequence 2, and a position corresponding to position 7 in a motif sequence 3L or 3H, and wherein the enzyme activity of α-glucan phosphorylase having improved thermostability at 37° C., after heating in a 20 mM citrate buffer (pH 6.7) at 60° C. for 10 minutes, is 20% or more of the enzyme activity of the α-glucan phosphorylase having improved thermostability at 37° C., before heating.

The invention discloses a method for preparing an alpha-glucanase by virtue of chaetomium gracile fermentation under an ultrasonic condition. The method is characterized in that when the chaetomium gracile is cultured in a culture medium, an ultrasonic action having the frequency of 20-40KHZ and the power of 80-120W is applied by the frequency of 40-80 minutes each time for 40-80 seconds each time. Beyond the expectation of the technicist in the field, the method for preparing the alpha-glucanase by virtue of chaetomium gracile fermentation under the low-frequency and low-power ultrasonic condition increases the growth rate of cells, and meanwhile, the enzyme activity of the glucanase is improved by 215%.

The present invention relates to the field of poly- and oligosaccharides and their dietary effects. In particular it relates to a method of producing an alpha-glucan containing (alpha 1-> 3) linked D-glucose units. The invention also provides a branched alpha-glucan comprising alternating (alpha1-> 4) and (alpha1-> 3) glucosidic linkages and having (alpha1-> 3,4) branching points, a food composition, and the use of an alpha-glucanotransferase enzyme for reducing the digestible carbohydrates of a starch containing food material. Further aspects of the invention are a bacteria, an enzyme and anexpression vector.

The invention discloses an ocentyl succinic short-chain alpha-glucan flavor capsule, which is of a nuclear shell structure. A flavor substance is adopted as a nucleus, and ocentyl succinic short-chainalpha-glucan is adopted as a shell. The polymerization degree of the short-chain alpha-glucan obtained in the mode that pullulanase conducts enzymolysis on waxy maize starch is 17-20, and the prepared short-chain alpha-glucan has better flexibility and higher embedding rate for the flavor substance than those of long-chain starch.