| abstract |
Proposed is a process for drying allulose crystals comprising or consisting of the following steps:n (a) providing non-dried allulose crystals, (b) temperature treating the crystals according to step (a) at a temperature in the range of about 25 to about 70° C. in a drying apparatus, wherein the temperature treatment is carried outn (b1) at atmospheric pressure and a residence time in the range of about 5 minutes to about 5 hours, or (b2) under reduced pressure and constant temperature and a residence time ranging from about 30 min to 5 hours, and n (c) conditioning the intermediate product obtained in step (b1) or (b2), wherein conditioning is carried outn (c1) over a period of about 30 min to 7 hours at a temperature in the range of about 40 to about 70° C., or (c2) over a period of about 15 to about 90 hours with air of a relative humidity of about 30 to about 60% and at a temperature of about 25 to about 40° C. |