Refined sugar production process from sugar cane by ultrafiltration process including the softening process by the addition of sodium carbonate

摘要

PROBLEM TO BE SOLVED: To directly produce refined sugar at a cane producing district in high efficiency.;SOLUTION: The sugar-producing process contains (1) a step to produce a crude juice comprising a squeezed juice obtained by squeezing sugar cane, an extracted juice obtained by extracting sugar cane or a sugar juice obtained by mixing the squeezed juice and the extracted juice, (2) a step to heat the crude juice, (3) a step to remove the insoluble matters from he crude juice by filtration, (4) a step to add sodium carbonate to the crude juice to effect the softening and the adjustment of pH, (5) an ultrafiltration step to remove the soluble polymeric materials and insoluble materials from the crude juice by ultrafiltration, (6) a step to concentrate the clear juice obtained by the above step and (7) a step to separate the concentrated liquid obtained by the above step into a sucrose fraction, a reducing sugar fraction and a non-sucrose fraction by chromatographic separation method.;COPYRIGHT: (C)2001,JPO