An industrially scalable process for producing substantially monodisperse compositions of phytoglycogen nanoparticles from phytoglycogen-containing plant materials is provided that avoids the use of chemical, enzymatic or thermo treatments that degrade the phytoglycogen material. Also provided are phytoglycogen nanoparticle compositions produced by these processes.

A method for producing insoluble alpha-1,3-glucan is disclosed. Embodiments of the method comprise providing (i) oligosaccharides that comprise alpha-1,3 and alpha-1,6 glycosidic linkages, or (ii) oligosaccharides derived from a glucosyltransferase reaction; and contacting at least water, sucrose, a glucosyltransferase enzyme, and the oligosaccharides provided in the first step. Glucosyltransferase reaction compositions embodying such a method, and insoluble products thereof, are also disclosed. Yield and other product benefits can be realized when practicing the disclosed subject matter.

A polymeric blend composition comprising: (a) from about 1 to about 99 wt. % of a polymer; and (b) from about 1 to about 75 wt. % poly alpha-1,3-glucan is disclosed. The addition of alpha-1,3-glucan as a polymer filler can increase the tensile modulus, tensile strength and oxygen barrier properties of the polymeric blend composition.

The present invention relates to a composition comprising glucose oligosaccharide and a process for making such. The present invention further relates to a composition comprising glucose oligosaccharide for use in the treatment of an animal. The present invention further relates to the use of a composition comprising glucose oligosaccharide to improve the growth performance of an animal. The present invention further relates to the use of a composition comprising glucose oligosaccharide to improve the immune system modulation of an animal.

The disclosure generally relates to poly_alpha-1,3-glucan compositions and articles containing them. In particular interest are compositions comprising poly_alpha-1,3-glucan ester derivatives. The poly_alpha-1,3-glucan derivatives are useful in thermoprocesses and in particular, injection molding processes.

Methods and compositions are provided for preventing and/or treating infection by disrupting interactions at or near the surface of mannosylated pathogens or other pathogens exhibiting carbohydrate-carbohydrate self-interaction, thus enhancing the immune system's ability to recognize and destroy such pathogens. In some forms, carrier molecules are provided to delivering polymers or other molecules capable of disrupting intra-cellular interaction and/or self-interaction of surface markers on cells.

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 present invention provides a method for the production of oligosaccharides by the fermentation of dextran-sucrase-producing microorganisms with sucrose and maltose. The disclosed process allows for the control of the final composition of the isomaltooligosaccharides by adjustments to pH and the initial ratio of sucrose to maltose.

The present invention provides a means for improving water-solubility of polysaccharide. A polysaccharide powder according to the present invention has a particle size distribution in which 30 vol % or more of the total volume of the powder has particle sizes of 200 to 750 μm.

A composition of phytoglycogen nanoparticles purified from a phytoglycogen-containing plant material is provided. The composition of phytoglycogen nanoparticles is monodisperse. A method of isolating the composition from phytoglycogen-containing plant materials is provided that includes steps of microfiltration and ultrafiltration, but avoids the use of chemical, enzymatic or thermo treatments that degrade the phytoglycogen material.