87 results about "Xyloglucan" patented technology

A polysaccharide conjugate comprises a polysaccharide with an attached entity having a molecular weight of at least 5000, the polysaccharide conjugate being capable of binding to cellulose. Preferred polysaccharides include tamarind seed xyloglucan, locust bean gum and enzyme modified guar. The attached entity is suitably a protein such as an enzyme, antibody or antibody fragment, or a particle possibly having a benefit agent such as a fragrance associated therewith. Because the polysaccharide conjugate binds to cellulose, which is present in cotton and other fabrics, paper, etc., binding of the conjugate to cellulose brings the attached entity into close proximity to a surface of or containing cellulose. The invention thus enables targeting of attached entities to such surfaces. The invention also provides a product incorporating the polysaccharide conjugate of the invention. The product is conveniently a laundry product such as a fabric washing product, e.g. a detergent product, or a fabric conditioning product. In this case the attached entity may be an enzyme, a particle bearing fragrance, etc. The invention also provides a method of targeting binding of an entity to cellulose by use of the polysaccharide conjugate of the invention.

The invention provides an encapsulate comprising a benefit agent core (preferably containing perfume), one or more inner shells (preferably of melamine urea or melamine formaldehyde) and an outer shell comprising a polymer (for example locust bean gum, tamarind xyloglucan, guar gum or mixtures thereof) which is substantive to cellulose (preferably in the form of cotton), at least one of said shells being impermeable to the benefit agent.

The present invention relates to composite material of xyloglucan and clay for use as a coating material. The invention also relates to a method of producing the coating.

Implantable materials for medical or surgical applications comprising specific chemical groups on their surface to alter the physico-chemical properties of said material rendering it suitable implantation or biocompatible properties.

The invention discloses a temperature sensitive gel sustained-release oral agent with a paracetamol, and relates to the technical field of pharmaceutic preparation. A carrier in the oral agent provided by the invention convenient for feeding includes paracetamol serving as an active ingredient and xyloglucan or a mixture of xyloglucan and another polysaccharide, wherein another polysaccharide is pectin, chitosan, algal polysaccharides or gellan gum. According to the invention, a polymer three-dimensional gel net structure formed by the polysaccharide is used for establishing a sustained-release system combined with clinical pathology so as to obtain the temperature sensitive gel sustained-release oral agent with the paracetamol; the temperature range for sol-gel change is 35-37 DEG C which is close to body temperature, so the oral agent is particularly suitable for old people, infants and people who have difficulty in swallowing, and has obvious efficacy. The temperature sensitive gel sustained-release oral agent disclosed by the invention has obvious analgesic and antipyretic effects, is convenient for administration and free of toxic and side effects, and the drug action can last for a long time.

The invention discloses a temperature-sensitive wall material. The temperature-sensitive wall material comprises a temperature-sensitive material modified polymer wall material, wherein the temperature-sensitive material is polyvinylpyrrolidone, glycerophosphate, stearic acid, galactose-removed xyloglucan or gelatin-chitosan, poly(N-isopropylacrylamide) and hydroxybutyl chitosan. The temperature-sensitive wall material releases drugs at different temperatures, the drug release time is flexibly controlled, the phytotoxicity is reduced, and the drug action time is prolonged. The temperature-sensitive wall material can be applied to whole-course pesticide application protection of the growth cycle of crops, the chemical application frequency is reduced, and the crop management efficiency is improved. The invention also provides a corresponding microcapsule and a preparation method.

A composition prepared from a cranberry hull enzyme-treated composition which reduces or inhibits the adhesion of microorganisms to cells having α-Gal-(1-4)-Gal terminal oligosaccharide receptors for adhesion.

The invention provides a Paenibacillus xylanilyticus strain and a method for preparing xyloglucanase by using the same. Paenibacillus xylanilyticus B20 CCTCC M 2012194 is used as a fermentation strain to carry out liquid fermentation so as to prepare the xyloglucanase. The preparation method comprises the following steps: activating the strain on a slant culture medium, carrying out seed culture in the liquid seed culture medium, and carrying out liquid state fermentation in the fermentation culture medium to finally obtain the fermentation liquid containing xyloglucanase. Since the Paenibacillus xylanilyticus B20 CCTCC M 2012194 is utilized to prepare the xyloglucanase by fermentation, the invention has the advantages of short fermentation time and high enzyme yield, the production conditions are easy to control, and the products are easy to separate and purify.

The invention discloses a method for extracting xyloglucan from tamarind seeds, and belongs to the technical field of plant polysaccharide extraction. According to the diversity of protein types in tamarind seeds and the characteristics of acid resistance, salt resistance and heat resistance of tamarind xyloglucan, the tamarind seeds are pretreated to obtain tamarind polysaccharide coarse powder, and then protein in polysaccharide is removed through acid treatment and alkali treatment in sequence in combination with activated carbon adsorption. And dialyzing under a sterile condition to finally prepare the ultra-pure tamarind xyloglucan with low protein content and low bacterial endotoxin content. Compared with an existing water extraction and alcohol precipitation method and an organic acid extraction method for extracting tamarind xyloglucan, the polysaccharide prepared through the method has the advantages of being good in solubility, high in purity and the like, application of the tamarind xyloglucan in the field of biological medicine is greatly promoted, alcohol is not needed to serve as a settling agent, procedures are reduced, and cost is reduced.

The invention relates to an externally applied preparation for treating whelks. The externally applied preparation is prepared by dissolving one or several medicaments of erythrocin, aureomycin, chloramphenicol, lincomycin hydrochloride, tobramycin, natamycin, norfloxacin, rifampicin, cyclosporine, gentamicin and neomycin into a polysaccharide aqueous solution. An obtained solution contains 0.005-1 wt% of medicaments and 0.01-30 wt% of glucan, xyloglucan, mycose, sea-tangle polysaccharides, tamarind gum, pectin or other Chinese medicinal herb polysaccharides, or a proper quantity of glucose, sodium chloride and potassium chloride are added to the aqueous solution to prepare a plaster preparation. The externally applied preparation has quick effect and definite curative effect on the whelks or acne and has small stimulation to the skin, extremely light skin decrustation degree and no obvious toxic or side effects. The process of the preparation can guarantee the chemical stability of each component in a production process.

The invention discloses a green plastic bag with double biodegradation and photodegradation and a manufacturing method thereof, which relate to the technical field of plastic thin films. The green plastic bag is prepared from the following raw materials in parts by weight: 20 to 30 parts of polyethylene, 20 to 30 parts of calcium carbonate, 15 to 25 parts of microcrystalline starch, 10 to 20 partsof xyloglucan, 10 to 20 parts of chitosan, 2 to 6 parts of diphenylcyclopropenone, 1 to 5 parts of iron dithiocarbamate, 1 to 5 parts of titanate coupling agent, 1 to 3 parts of nanometer titania, 1to 3 parts of simethicone, 2 to 5 parts of sorbitol, 2 to 4 parts of phthalic acid, 2 to 6 parts of sodium carboxymethylcellulose, 2 to 8 parts of oxidized polyethlene wax, 2 to 8 parts of mannitol stearate, and 2 to 8 parts of acetic acid. The green plastic bag provided by the invention has synergism, cooperation and coherent functions between biodegradation and photodegradation, and the photodegradation and oxide degradation can be carried out at the same time and mutually promoted; biodegradation easily occurs after photodegradation, meanwhile, the water resistance, the strength, the heat machinability and the service life are improved, and a comprehensive performance is further improved.

The invention discloses a tumor microenvironment dual-response drug controlled-release microcapsule based on a natural polysaccharide and application thereof. A capsule shell layer is of a multilayered structure and layers are connected through a chemical bond; each layer is composed of a succinimide thioether bonding structure formed by assembling XG-MA/XG-SH or a thiomaleimide bonding structureformed by assembling XG-BrMA/XG-SH; the capsule shell layer covers an anti-tumor drug. The invention adopts a construction method of the microcapsule with certain stability based on natural xyloglucan; the layers of the microcapsule are connected through the chemical bond and have relatively high stability; meanwhile, the microcapsule has dual-response performance on a tumor microenvironment; reduction and cracking rates of the succinimide thioether bonding structure and the thiomaleimide bonding structure in the microcapsule are different; the controlled-release rate of the anti-tumor drug can be realized though regulating and controlling the ratio of the XG-MA to the XG-BrMA.