| 摘要 |
<p>A product comprising a mixture of .alpha.- and .beta.- forms of glucose as microcrystals, at least 70% of the glucose being in the form of the .beta.-isomer, dissolves readily in water to give approximately 60% solids solutions at ambient temperature. It is obtained by a process comprising the steps of 1) evaporating water from syrup at a pressure of less than 400 mg Hg to provide an at least 60% supersaturated solution of greater than 95% solids at a temperature of from 95.degree. to 140.degree.C; 2) subjecting the supersaturated solution substantially instantaneously to a shear force to cause immediate nucleation of the syrup without cooling; and 3) immediately forming the nucleated but substantially uncrystallised syrup into a quiescent layer and allowing the layer to crystallise substantially isothermally to produce solid crystalline glucose.</p> |
