Patent ID: 8926794
Filing Date: 2015-01-06
Classification: C08B,C08H,C08L,D21C

Abstract:
1. A process of separating one or more components of destarched corn fiber, the process comprising: (a) contacting the destarched corn fiber, which comprises a matrix that comprises hemicellulose, cellulose and lignin, with an aqueous extraction fluid that comprises at least one weak acid at a total concentration of weak acid(s) in the range of about 0.01 M to about 1 M to form an extraction mixture; (b) solubilizing hemicellulose of the destarched corn fiber by controlling the temperature of the extraction mixture so that the extraction fluid is sufficiently acidic to break linkages between hemicellulose and lignin via hydrolysis, T (c) quenching hydrolysis by controlling the temperature of the extraction mixture so that the extraction fluid is not sufficiently acidic to substantially depolymerize the dissolved hemicellulose, T (d) separating the extraction mixture into a soluble fraction comprising dissolved hemicellulose and an insoluble fraction comprising cellulose and lignin, wherein