International Sugar Journal

Iron mediated clarification and decolourisation of sugarcane juice † [Full subscriber]

In order to operate most profitably, the sugar producers in Louisiana wish to engage in a cooperative arrangement with the sugar refineries. Because the sugar refinery is an industrial scale decolouriser that operates using natural gas as fuel, it makes sense that sugar with less colour, produced using bagasse-power, would likely have greater profit margins. The removal of phenolic colorants from raw juice using native cane protein as a vehicle and Fe3+ as an oxidative catalyst was studied. Colour was removed as phenol-protein conjugates which rapidly precipitated with the addition of a cationic flocculant. The decanted juice was clarified via…

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