Purification of Raw Sugars

In the production of solid sucrose sugars, most of the noncarbohydrate materials, which are inorganic or organic ionizable or nonionizable materials, interfere 

In the refining process of sugar, it is desired not only to remove soluble ash but also to remove other colored constituents that reduce the overall yield of crystalline 

The particulate fouling of resin beds is a major problem and is taken care of by backwashing. Organic fouling is the main cause of resin life reduction, and is reflected in the resin performance. Resins will show this quite dramatically by changing color from the new amber or white to dark brown and black, within five or ten cycles. 

Maize juice produced from com starch, which has received considerable attention as a sucrose source, has been snccessfully deionized by conventional treatment with the result that improved sugar recoveries are possible. In the manufacture of dextrose, the organic acids and colored substances produced as degradation products during starch hydrolysis were eliminated economically by the use of the ion-exchange process to produce a high-quality sugar. 

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