International Sugar Journal

The presence and implication of soluble, swollen, and insoluble starch at the sugarcane factory and refinery† [Full subscriber]

Starch impurity concentrations in sugarcane are country dependent and in recent years there has been a general world-wide increase. This has occurred mostly because of one or a combination of the following: (i) increased mechanical processing of unburnt (green) sugarcane; (ii) varying environmental conditions; and (iii) the introduction of new sugarcane varieties with higher starch content. Approximately 18% starch was found to partition into an A-raw sugar and 82% into an A-molasses. By developing a new method to accurately remove the surface molasses layer from raw sugar crystals we were able to calculate that the true starch partition coefficient is…

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