Patent ID: 6872414
Filing Date: 2005-03-29
Classification: A21D,A23G,A23L,A23V,A61K,A61Q,C07H

Abstract:
1. A process for preparing anhydrous lactitol crystals belonging to the orthorhombic P2 1 2 1 2 1 crystal system and having unit cell constants about a=9.6 Å, b=11.1 Å, c=14.0 Å, by crystallizing from an aqueous solution which contains not less than 70%, of lactitol on dry matter, characterized by bringing said aqueous lactitol solution to supersaturation in regard to lactitol, and subjecting the solution to crystallization conditions at a temperature between 70 and 150° C. by boiling and/or cooling crystallization, allowing said solution to crystallize until a substantial first crystal yield is obtained, and conditioning said first crystal yield at a temperature of 70-100° C. for a sufficient time to allow said first crystal yield to convert into a second crystal yield comprising said orthorhombic anhydrous lactitol crystals, recovering said orthorhombic anhydrous lactitol crystals from the mother liquor, and optionally washing and drying said crystals.