Eastman Chemical Company

Larry R Lingerfelt, Jr

Charles Michael Buchanan

Norma Lindsey Buchanan

Matthew Davie Wood

Michael Charles Shelton

Larry Wayne Blair

Bhaskar Krishna Arumugam

John Steele Debenham

Michael Visneski

John K Sanders

In one aspect, the invention provides methods of obtaining at least one monosaccharide from corn fiber the method comprises the steps of: (a) heating an aqueous mixture of corn fiber and a liquid; (b) contacting the mixture of step (a) with a protease enzyme, thereby providing a proteolyzed corn fiber and a liquid; (c) separating the liquid from the proteolyzed corn fiber; (d) contacting the proteolyzed corn fiber at least once with an alkaline extractant, thereby providing an insoluble cellulose material and a liquid comprising arabinoxylan; (e) separating the insoluble cellulose material from the liquid comprising arabinoxylan; (f) reducing the volume of the liquid comprising arabinoxylan by removing excess alkaline extractant, thereby providing a concentrated liquid comprising from about 10 to about 50% solids, wherein the solids comprise arabinoxylan; and (g) hydrolyzing the arabinoxylan from step (f) in the presence of a catalyst and a solvent, thereby providing a mixture comprising at least one monosaccharide. In a further aspect, the invention pertains to methods of separating the monosaccharides obtained from corn fiber according to the methods disclosed herein.

Corn fiber for the production of advanced chemicals and materials: separation of monosaccharides and methods thereof

Growing community of inventors

Blountville, TN, United States of America

Larry R Lingerfelt, Jr