111 results about "Galactan" patented technology

High-yielding method for chemical hydrolysis of lignocellulose into monosaccharides. The process of the invention can additionally be applied to cellulose, xylan and related biomass polysaccharides, such as galactan, mannan, or arabinan. The method is employed for hydrolysis of a biomass polysaccharide substrate. The process is carried out in an ionic liquid in which cellulose is soluble in the presence of catalytic acid at a temperature sufficiently high to initiate hydrolysis. Water is added to the reaction mixture after initiation of hydrolysis at a rate controlled to avoid precipitation yet avoid undesired sugar dehydration products such ad HMF. Hydrolysis product is useful as feedstock for fermentations including fermentation processes for ethanol, butanol and other fuels.

A genetically modified organism comprising: at least one nucleic acid sequence and/or at least one recombinant nucleic acid isolated from Alicyclobacillus acidocaldarius and encoding a polypeptide involved in at least partially degrading, cleaving, transporting, metabolizing, or removing polysaccharides, cellulose, lignocellulose, hemicellulose, lignin, starch, sugars, sugar oligomers, carbohydrates, complex carbohydrates, chitin, heteroxylans, glycosides, xylan-, glucan-, galactan, or mannan-decorating groups; and at least one nucleic acid sequence and/or at least one recombinant nucleic acid encoding a polypeptide involved in fermenting sugar molecules to a product. Additionally, enzymatic and/or proteinaceous extracts may be isolated from one or more genetically modified organisms. The extracts are utilized to convert biomass into a product. Further provided are methods of converting biomass into products comprising: placing the genetically modified organism and/or enzymatic extracts thereof in fluid contact with polysaccharides, cellulose, lignocellulose, hemicellulose, lignin, starch, sugars, sugar oligomers, carbohydrates, complex carbohydrates, chitin, heteroxylans, glycosides, and/or xylan-, glucan-, galactan, or mannan-decorating groups.

A new approach in the field of plant gums is described which presents a new solution to the production of hydroxyproline(Hyp)-rich glycoproteins (HRGPs), repetitive proline-rich proteins (RPRPs) and arabino-galactan proteins (AGPs). The expression of synthetic genes designed from repetitive peptide sequences of such glycoproteins, including the peptide sequences of gum arabic glycoprotein (GAGP), is taught in host cells, including plant host cells.

A use of an anti-inflammatory polysaccharides composition comprising fucans and galactans to inhibit the release of one or more of IL-8, PGE2 and VEGF by a cell activated during an inflammatory process and an anti-inflammatory composition comprising a ratio of brown algae fucans/red algae galactans of between about 2.5/1 (w/w) to about 40/1 (w/w), the galactans having a molecular weight higher than about 100 kDa, and the fucans having a molecular weight between about 0.1 kDa and 100 kDa.

Methods for providing transgenic plants and parts hereof that, relative to the wild type state, is modified in a complex cell wall polysaccharide structure including pectins and hemicelluloses, the modification being in the overall glycosidic linkage pattern or the monosaccharide profile, comprising transforming a plant cell with a nucleotide sequence that causes an altered production of a complex cell wall polysaccharide-modifying enzyme such as endo-rhamnogalacturonan hydrolase, an endo-rhamnogalacturonan lyase, an endo-galactanase, an endo-arabinanase, an arabinofuranosidase, a galactosidase such as a beta-galactosidase, a xylosidase and an exo-galacturosidase. The modification can occur in vivo or post harvest, in which latter case the modifying enzyme is separated in the growing plant from its substrate, e.g. by targeting the enzyme to the Golgi, the endoplasmic reticulum or a vacuole, or is in a form that is inactive in the plant. After harvest the enzyme is brought into contact with its substrate or it is activated to provide the desired post harvest modification of the cell wall polysaccharide. The transgenic plant materials have improved functionalities and are useful in food and feed manufacturing and as pharmaceutically or medically active substances.

The invention discloses panax japonicus polysaccharide.The main chain structure thereof is Beta-D-1 to 3-mannan and/or Alpha-D-3 to 4-mannan and heterosaccharide containing galactan, xylan and glucan, the weight-average molecular weight of the panax japonicus polysaccharide is 5,000 to 2,000,000, the intrinsic viscosity at 25 DEG C is 1 to 100ml/g, and the mole ratio of the three elements of C: H: O is 1: 2: 1. The preparation of the panax japonicus polysaccharide comprises the following steps: after being dried, smashed and skimmed, the panax japonicus is soaked by water under the normal temperature and is stirred for separation, the residue is extracted by high-pressure hot water, further extracted by alkali and reductive salt, and finally extracted by acid, and the panax japonicus polysaccharide which can be dissolved in water and DMSO and not be dissolved in methanol, ethanol and acetone is obtained by separation, neutralization by taking the solution, dehydration, protein removal, decolorization, desalination and drying. The panax japonicus polysaccharide which is prepared by the invention has higher anti-tumor activity and promotion of immune activity, which can be used for preparing drugs or health care products for improving immune function and anti-tumor. The method for preparing the product is simple and easy to operation, and the sources of the needed raw materials are wide.

The invention discloses rhizoma polygonati beta-galactan HJW0S300-2, which has a structural formula as shown in the description. The rhizoma polygonati beta-galactan HJW0S300-2 has the molecular weight in a range of 8-15 KDa, and the average molecular weight (Mw) of 10 KDa. The invention further relates to a preparation method of rhizoma polygonati beta-galactan HJW0S300-2, and an application of rhizoma polygonati beta-galactan HJW0S300-2 to an anti-inflammatory aspect.

The present invention relates to a composition for preventing, ameliorating or treating a bowel disease, comprising galactomannan and/or arabinogalactan; a liquid food for preventing, ameliorating or treating a bowel disease, characterized in that the liquid food comprises a protein and galactomannan and/or arabinogalactan; and a composition for preventing, ameliorating or treating an irritable bowel syndrome, comprising degraded galactomannan.

The present invention relates to an okra yogurt and a preparation method therefor, comprising the steps of: adding cooked okra into hawthorn and performing filtering, cutting up aloe vera and adding the cut aloe vera into the filtrate, adding the mixed liquid and saussurea bacteria into fresh milk to produce an okra yogurt by fermentation; adding strawberries into a fermentation liquid for fermentation, finally obtaining by drying, preserved strawberries. The okra yogurt provided by the present invention is unique in flavor, abundant in nutrition and exquisite in taste. The okra yogurt comprises a viscous solution, an arabinoxylan, a galactan and a rhamnose, so as to facilitate digestion, enhance physical strength, protect the liver, invigorate the stomach and regulate the bowels; The okra yogurt comprises vitamin A and carotene, contributing to the retinal health and eyesight maintenance; The okra yogurt is also enriched with trace elements selenium and zinc, and can enhance the ability of the human body in cancer prevention and treatment.

The present disclosure relates to an acid catalyst composition for producing 5-chloromethyl-2-furfural from galactan derived from seaweed and a method for producing 5-chloromethyl-2-furfural from galactan derived from seaweed on a two component phase using the acid catalyst, the acid catalyst composition for producing 5-chloromethyl-2-furfural from galactan derived from seaweed including organic solvent and dilute hydrochloric acid, a concentration of the dilute hydrochloric acid being 4N to 8N (normal).

According to the present disclosure, there is an advantage of converting 5-chloromethyl-2-furfural from galactan derived from seaweed by means of a single process by mixing dilute hydrochloric acid and organic solvent by an optimal ratio, unlike conventional methods for producing 5-chloromethyl-2-furfural that had to go through a multi-phase process of preconditioning and saccharification.

The present invention concerns a detergent comprising a polypeptide having galactanase activity. It further concerns a laundering method and the use of galactanases. The present invention further relates to polypeptides having galactanase activity, nucleotides encoding the polypeptide, as well as methods of producing the polypeptides.

The invention discloses a method for extracting arabinogalactan and dihydroquercetin from dahurian larch. The method is characterized in that dahurian larch is taken as a raw material and is subjected to supersonic extraction with an ethanol solution; solid and liquid are separated from each other through filtering, so that an extracting solution is obtained; absolute ethyl alcohol is fed into the extracting solution till polysaccharide is sufficiently settled; the polysaccharide is subjected to high-speed centrifugation; precipitation, refrigeration and drying are performed, so that dahurian larch arabinogalactan crude extract is obtained; ethyl alcohol in supernate is concreted till solid matter is obtained; the solid matter is dissolved through hot water and then is enriched through macroporous adsorption resin; elution and recrystallization are performed, so that dihydroquercetin extract is obtained. The method has the main characteristics that the raw material is not required to be dried and directly used, the energy consumption is low, by adjusting the content of ethanol in the ethanol solution for extracting, arabinogalactan and dihydroquercetin are simultaneously extracted, the production cost is low, energy consumption is reduced, the yield of products is high, the process of purification performed by the macroporous adsorption resin is pollution-free, all solvents can be recycled, and the method is convenient for industrial scale production.

The invention discloses a fermentation extraction method of peach gum polysaccharide with efficient anti-allergy and itching-relieving effects. The method comprises the following steps of 1, mixing soaked peach gum, ultrapure water and yeast dry powder capable of expressing galactanase according to a proportion of 1:(5 to 100):(0.01 to 0.1), and performing stirring and fermentation; 2, when the viscosity of fermentation liquid is reduced to 200 to 1000 mPa.s, stopping stirring, pouring out the fermentation liquid, adding absolute ethyl alcohol until the mass percentage of the ethyl alcohol is60 to 90 percent, performing still standing, and removing supernatant; and 3, washing lower layer precipitates by the ethyl alcohol, and performing freeze drying after reduced pressure suction filtration to obtain the peach gum polysaccharide. The invention also discloses the peach gum polysaccharide with efficient anti-allergy and itching-relieving effects, application of the peach gum polysaccharide, and application of the peach gum polysaccharide to preparation of anti-allergy and itching-relieving skin care products. The fermentation extraction method of the peach gum polysaccharide has the advantages that the energy consumption is low, and the environment is protected. The peach gum polysaccharide obtained by using the method provided by the invention has the anti-allergy and itching-relieving effects.

The invention belongs to the technical field of cosmetics, and particularly relates to a composition for improving a physiological status of scalp as well as a preparation method and application thereof. The composition for improving the physiological status of the scalp of the invention comprisesis prepared from 1.0 to 8.0 percent of arabogalactan, 2.0 to 16.0 percent of dipotassium glycyrrhizinate, 0.1 to 1.0 percent of beta-sitosterol, 0.1 to 5 percent of a sootherreliever, 20 to 40 percent of a stabilizer, and the balance of weightater. In the composition of the invention, the arabogalactan, the dipotassium glycyrrhizinate, the beta-sitosterol and the sootherreliever are mutually cooperated to improve the physiological status of the scalp, so that a good effect for restoring, relievingsoothing and resisting allergy of the scalp with abnormal condition such as scurf, itching in head, scalp redness and the like can be achieved, and an effect for improving the supersecretion of hair oil and hair loss can be achieved. In addition, the composition of the invention has no emulsifier and essence ingredients and does not cause additional load for the skin.

The invention concerns an aqueous slurry comprising thermally expandable microspheres comprising a thermoplastic polymer shell and a propellant entrapped therein, said slurry further comprising an at least partially water soluble polymer selected from the group consisting of gums, celluloses, chitins, chitosans, glycans, galactans, pectins, mannans, dextrins, polyacrylic acid, esters and amides and co-polymers thereof, polymethacrylic acid, esters and amides and co-polymers thereof, rubber latexes, poly(vinyl chloride) and copolymers, poly(vinyl esters) and co-polymers, poly(vinyl alcohol), polyamines, polyetyleneimine, polyethylene/polypropylene oxides, polyurethane, and aminoplast and phenoplast precondensates and polyamidoamine epichlorohydrin resins. The invention further concerns a process for its preparations, use thereof for the production of paper or non-woven, and a process for the production of paper or non-woven.

A complex includes RNA and a positively charged modified polysaccharide selected from starch, amylose, amylopectin, galactan, chitosan, or dextrin. The complex can be formed into a pharmaceutical composition. The complex can be used in methods for RNA transfection, gene therapy and treatment of a disease, disorder or condition. The positively charged modified polysaccharide can be used in connection with RNA transfection into cells.

The invention discloses arabinogalactan KMCP as well as a preparation method and application thereof in preparation of an immune modulator. The arabinogalactan KMCP with immune activity is extracted and separated by utilizing compositae plants, i.e., indian lettuce, which are widely distributed in China, as raw materials; the source of the plant materials is extremely abundant; in application development, a lot of indian lettuce plant materials are collected and utilized, and further resource comprehensive utilization of the indian lettuce plants also can be promoted, so that the arabinogalactan KMCP has potential good economic benefits and also have potential good ecological benefits.

The invention discloses application of rhizoma polygonati beta-galactan HJW0S300-2 in cosmetics with an antiaging or sun-protecting effect. The structural formula of the rhizoma polygonati beta-galactan is shown in the formula which is shown in the description. The molecular weight is ranged from 8 KDa to 15 KDa, and the average molecular weight Mw is 10 KDa. The invention further relates to application of rhizoma polygonati beta-galactan in inhibiting fibroblast apoptosis and cosmetics containing the rhizoma polygonati beta-galactan.

The invention discloses a preparation method of an apple pectin heteropolysaccharide for improving diversity of intestinal florae. The preparation method comprises the following steps: I, dissolving apple powder into water, performing enzymolysis, performing vacuum concentration, and performing purification so as to obtain a pectin extract; II, adding pectin methylesterase and pectin acetylase into the pectin extract, performing primary oriented digestion, adding polygalacturonase and pectate lyase, performing secondary oriented digestion, further adding polyrhamnogalacturonases, xylogalact uronase, galactan esterases and arabanase, and performing third oriented digestion so as to obtain a modified pectin extract; and III, performing purification treatment on the modified pectin extract, so as to obtain the apple pectin heteropolysaccharide. Through three times of oriented digestion, the apple pectin heteropolysaccharide which is high in neutral polysaccharide ratio, low in methyl esterification degree and low in acetylation degree can be obtained, the apple pectin heteropolysaccharide is capable effectively improving diversity of intestinal florae, and the microorganism fermentation degradation rate in intestines within 24 hours is greater than 80%.