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: Microbiological method of production of a dextran solution, according to which a culture medium containing sucrose is inoculated with a preculture of a bacterial strain that is able to produce dextran, then the dextran solution obtained at the end of fermentation is recovered directly, without a subsequent concentration step, characterized in that:—before inoculation, the culture medium contains at least 10 wt. % of sucrose,—after inoculation, sucrose is added again in conditions such that the total amount of sucrose in the medium, including that present before inoculation, is at least 16 wt. %,—the dextran solution obtained contains at least 10 wt. % of dextran. The native solution of dextran obtained and use of the solution as a flocculant.

Abstract: DNA encoding a novel protein from Mycobacterium aurum SC-S423 capable of converting acetophenone to an optically active 1-phenylethlamine in the presence of a racemic mixture of sec-butylamine is provided, along with a vector and host cell comprising the same and a method of producing the same.

Abstract: According to the present invention, a novel protein capable of catalyzing transamination stereoselectively and a gene encoding said protein can be provided.

Abstract: A novel protein from Mycobacterium aurum SC-D423 capable of converting acetophenone to an optically active 1-phenylethylamine in the presence of a racemic mixture of sec-butylamine is provided.