Abstract: Disclosed herein are systems and methods for the purification of human milk oligosaccharides (HMOs). The HMOs can be purified from a suspension containing one or more of a bacterial biomass, cell fragments, small particles, and biomolecules. Advantageously, the solution can be pre-treated prior to centrifuging to form a clarified supernatant containing purified HMOs.

Abstract: This invention relates to a method for the enzymatic synthesis of oligosaccharides, preferably human milk oligosaccharides (HMOs) The method comprises the enzymatic transfer of a glycosyl moiety and subsequent removal of by-products, such as lactose, by nanofiltration using a membrane comprising an active polyamide layer.

Abstract: The present invention relates to the separation and isolation of sialylated human milk oligosaccharides (HMOs) from the reaction mixture in which they are produced.

Abstract: A mixture of human milk oligosaccharides that comprises or consists essentially of a) LNTri II, LNT, pLNH II and optionally lactose, or b) LNTri II, LNnT, pLNnH and optionally lactose, and is useful for preventing or treating viral or bacterial, intestinal and respiratory infections and for modulating the human gastrointestinal microbiota to increase Bifidobacterium abundance. A process for preparing the mixture and methods of crystallizing LNnT and LNT is also described.

Abstract: The present invention relates to the separation and isolation of neutral human milk oligosaccharides (HMOs) from the reaction mixture in which they are produced.

Abstract: The present disclosure relates to synthetic mixtures of certain human milk oligosaccharides and uses thereof. Particular mixtures provided herein include: lacto-N-triose II, lacto-N-neotetraose, para-lacto-N-neohexaose, and, optionally, lactose; and lacto-N-triose II, lacto-N-tetraose, para-lacto-N-hexaose II, and, optionally, lactose. These mixtures are useful in the prevention and treatment of viral and bacterial infections.

Abstract: The present invention relates to a method of removing residual organic solvent from crystalline oligosaccharides by the use of water vapour as well as the pharmaceutically and nutritionally suitable crystalline oligosaccharides obtained by said method.

Abstract: The invention relates to a method for obtaining an N-acetylglucosamine containing neutral oligosaccharide from a fermentation broth, wherein said oligosaccharide is produced by culturing a genetically modified microorganism capable of producing said oligosaccharide from an internalized carbohydrate precursor, comprising the steps of: i) ultrafiltration (UF), preferably to separate biomass from the broth, ii) nanofiltration (NF), preferably to concentrate said oligosaccharide in the broth and/or reduce an inorganic salt content of the broth, and iii) treating the broth with an ion exchange resin, preferably to remove charged materials, and/or subjecting the broth to chromatography, preferably to remove hydrophobic impurities.

Abstract: This invention relates to a method for the enzymatic synthesis of oligosaccharides, preferably human milk oligosaccharides (HMOs) The method comprises the enzymatic transfer of a glycosyl moiety and subsequent removal of by-products, such as lactose, by nanofiltration using a membrane comprising an active polyamide layer.

Abstract: The invention relates to a method for the separation of two hydrophilic neutral oligosaccharides from each other with a chromatography on a bromine functionalized polystyrene cross-linked with divinylbenzene (BPS-DVB) stationary medium.

Abstract: This invention relates to a method for the enzymatic synthesis of oligosaccharides, preferably human milk oligosaccharides (HMOs) The method comprises the enzymatic transfer of a glycosyl moiety and subsequent removal of by-products, such as lactose, by nanofiltration using a membrane comprising an active polyamide layer.

Abstract: The invention relates to separation of disaccharides from tri- or higher oligosaccharides by nanofiltration.

Abstract: The present invention relates to a method for separating sialylated oligosaccharides from a fermentation broth in which they are produced by a genetically modified microorganism The separation comprises the steps of: i) ultrafiltration; ii) nano-filtration; iii) optionally, activated charcoal treatment; and iv) treatment with strong anion and/or cation exchange resin.

Abstract: This invention relates to a method for the enzymatic synthesis of oligosaccharides, preferably human milk oligosaccharides (HMOs) The method comprises the enzymatic transfer of a glycosyl moiety and subsequent removal of by-products, such as lactose, by nanofiltration using a membrane comprising an active polyamide layer.

Abstract: The invention relates to separation of disaccharides from tri- or higher oligosaccharides by nanofiltration.

Abstract: The invention relates to a method for separating sialylated oligosaccharides, preferably sialylated human milk oligosaccharides (HMOs), from disaccharides, preferably lactose, produced by a fermentation or enzymatic process.

Abstract: Crystalline pLNnH, useful in a pharmaceutical or nutritional composition, is disclosed.

Abstract: The present invention relates to a method of removing residual organic solvent from crystalline oligosaccharides by the use of water vapour as well as the pharmaceutically and nutritionally suitable crystalline oligosaccharides obtained by said method.

Abstract: A mixture of human milk oligosaccharides that comprises or consists essentially of a) LNTri II, LNT, pLNH II and optionally lactose, or b) LNTri II, LNnT, pLNnH and optionally lactose, and is useful for preventing or treating viral or bacterial, intestinal and respiratory infections and for modulating the human gastrointestinal microbiota to increase Bifidobacterium abundance. A process for preparing the mixture and methods of crystallizing LNnT and LNT is also described.

Abstract: The invention relates to a method for obtaining an N-acetylglucosamine containing neutral oligosaccharide from a fermentation broth, wherein said oligosaccharide is produced by culturing a genetically modified microorganism capable of producing said oligosaccharide from an internalized carbohydrate precursor, comprising the steps of: i) ultrafiltration (UF), preferably to separate biomass from the broth, ii) nanofiltration (NF), preferably to concentrate said oligosaccharide in the broth and/or reduce an inorganic salt content of the broth, and iii) treating the broth with an ion exchange resin, preferably to remove charged materials, and/or subjecting the broth to chromatography, preferably to remove hydrophobic impurities.