Crystalline glucose and process for its production
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United States of America Patent
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Aug 3, 1982
Grant Date -
N/A
app pub date -
Feb 24, 1981
filing date -
Feb 27, 1980
priority date (Note) -
Expired
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Abstract
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 mm 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 uncrystallized syrup into a quiescent layer and allowing the layer to crystallize substantially isothermally to produce solid crystalline glucose.
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