Crystalline glucose and process for its production
US4342603A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 24, 1981 |
| Grant date | Aug 3, 1982 |
| Priority date | — |
| Expiry date | Feb 24, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC13K1/10
- WIPO fieldFood chemistry
- WIPO sectorChemistry
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 PA0 (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.; PA0 (2) subjecting the supersaturated solution substantially instantaneously to a shear force to cause immediate nucleation of the syrup without cooling; and PA0 (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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.