A method for preparing an improved gum arabic comprising the steps of providing a gum arabic from Acacia seyal selecting gum arabic having a tannin content >700 ppm (w/w).

The present disclosure provides methods of improving the resolution of labeled glycans in capillary electrophoresis techniques using a gel as a sieving matrix, by incorporating polyamines in the gel.

The present disclosure relates to a process for preparing alkali metal salt of carboxyalkyl ether of tamarind gum with one or more improved properties like improved viscosities and electrolytic stability. Particularly the present disclosure provides a process for preparing alkali metal salt of carboxyalkyl ether of tamarind gum comprising: (a) permeating a pulverized tamarind gum powder by mercerizing said pulverized tamarind gum powder in the presence of an alkali, and a non-aqueous organic polar solvent present in an amount of at least 2 times the amount of the tamarind gum v/w; (b) carrying out etherification of alkali-tamarind gum with etherifying agent to provide an alkali metal salt of carboxyalkyl ether of tamarind gum; in which, steps of mercerizing the pulverized tamarind gum powder and etherification are carried out separately or simultaneously.

Disclosed is a method for preparing an N-acetyl-D-galactosamine tripolymer precursor. In the preparation of the tripolymer precursor, a compound 4 is prepared by the following steps: adding a compound 3, a 4 molecular sieve powder, and a reaction solvent into a reactor; inflating and changing protective gas for 3 times; stirring; firstly adding an enol, followed by slowly dropping trimethylsilyl trifluoromethanesulfonate; after a reaction, quenching the reaction with an alkali solution; and performing extraction, separating liquid, washing, drying, filtration, etc., so as to obtain the compound 4. According to the present disclosure, the problems of various production processes, more times of column chromatography for purification of products accompanied by lower yields in the prior art are solved.

Acetylated polysaccharides and methods of making and using them are provided. One method of making acetylated polysaccharides includes providing polysaccharides, purifying the polysaccharides to 1-90% purity by weight, providing an acetylation agent, providing a catalyst, mixing the acetylation agent and catalyst with the polysaccharides, thereby manufacturing acetylated polysaccharides, and purifying the acetylated polysaccharides.

The present invention relates to storage-stable formulations of oligosaccharide preparations suitable for use in nutritional compositions such as animal feed.

The present disclosure relates to a process for preparing alkali metal salt of carboxyalkyl ether of tamarind gum with one or more improved properties like improved viscosities and electrolytic stability. Particularly the present disclosure provides a process for preparing alkali metal salt of carboxyalkyl ether of tamarind gum comprising: (a) permeating a pulverized tamarind gum powder by mercerizing said pulverized tamarind gum powder in the presence of an alkali, and a non-aqueous organic polar solvent present in an amount of at least 2 times the amount of the tamarind gum v/w; (b) carrying out etherification of alkali-tamarind gum with etherifying agent to provide an alkali metal salt of carboxyalkyl ether of tamarind gum; in which, steps of mercerizing the pulverized tamarind gum powder and etherification are carried out separately or simultaneously.

The present disclosure relates to fungi, a culture filtrate thereof and a polysaccharide and their applications in inducing or priming plant resistance to viruses. Aspects of the present disclosure provides a cultured filtrate, derived from a fungus belonging to the genus Trichosporon, induces strong resistance to various viruses on different plants.

Method for inhibiting the swelling and the dispersion of shales in the treatment of subterranean shale formations comprising the use of a cationic tamarind gum and fluids for the treatment of subterranean shale formations comprising a cationic tamarind gum.

A substance having innate immune stimulating activity is a polysaccharide, which contains 25 to 50 parts by mole of galacturonic acid, 15 to 50 parts by mole of galactose, 0 to 7 parts by mole of glucose, 0 to 30 parts by mole of arabinose, 0 to 6 parts by mole of xylose, and 3 to 15 parts by mole of rhamnose as constituent sugars. The polysaccharide has a polygalacturonic acid chain having -1,4-linked galacturonic acid as a main chain. An innate immune stimulant can include the polysaccharide as an active component, which can be included in a food or drink.