Novel crystallization methods and novel crystalline and amorphous forms of halogenated sugars

摘要

Disclosed is crystalline 4,1',6'Trichlorogalactosucrose (TGS) having enhanced storage stability, a mean particle size of about 5 microns or less, 90% particles being less than about 10 microns and the maximum particle size being more than twice the mean but less than about 35 microns; and a process for producing the same comprising gradual cooling of a saturated solution of TGS of a mixture of a a polar alcoholic solvent and a less polar organic solvent, the proportion of the said polar alcoholic solvent being within maintained within a range of about 3% to 10% of total volume of the said saturated solution during cooling process.