Process for the preparation of crystalline maltulose monohydrate

Fecha de publicación: 17/11/1999
Fuente: WIPO "miel"
The crystallization of maltulose (4-O- alpha -D-glucopyranosyl-D-fructose) monohydrate comprises cooling of the supersaturated maltulose solution. The crystallization of maltulose monohydrate comprises: (1) preparing an aqueous solution containing maltulose (65 wt. %); (2) concentrating the aqueous solution to obtain a solid content of more than 50 wt. % and a supersaturation degree lower than 1; (3) cooling the solution to obtain a supersaturation degree greater than 1; (4) crystallizing maltulose in the solution while cooling at controlled speed and stirring; and (5) separating, collecting and drying the crystals of maltulose monohydrate.