Patent
Preparation of colored starch syrup using purple black rice pigment
TLDR
In this article, the authors provided a process for the preparation of starch syrup having reddish purple color from glutinous rice and malt by using purple black rice containing anthocyan-type pigment in the bran layer.Abstract:
PURPOSE:To provide a process for the preparation of starch syrup having reddish purple color from glutinous rice and malt by using purple black rice containing anthocyan-type pigment in the bran layer. CONSTITUTION:This colored starch syrup can be produced by removing disagreeable smell from the bran of purple black rice with hexane-ethanol, extracting the pigment from the refined bran with 0.2% aqueous solution of citric acid at 55 deg.C, adding the obtained aqueous solution of pigment to a squeezed juice prepared by saccharifying steamed glutinous rice with malt and concentrating the mixture by conventional method.read more
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