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United States Department of Agriculture

Agricultural Research Service

Title: Fermentable Sugars from Corn Byproducts

Authors
item Leathers, Timothy
item Dien, Bruce

Submitted to: Corn Dry Milling Conference Proceedings
Publication Type: Proceedings
Publication Acceptance Date: May 15, 1997
Publication Date: N/A

Technical Abstract: Fibrous components of the corn kernel include the seed pericarp and the non-oil fraction of the corn germ. These materials appear in different forms as abundant byproducts of both wet and dry milling processes, as corn hulls or bran, corn fiber, and defatted or de-oiled germ meal. Such byproducts are typically folded into low value animal feeds, such as hominy feed (dry milling) and corn gluten feed (wet milling). Alternative fates for these corn byproducts include saccharification and fermentation to value-added products, including ethanol and sugar alcohols. Using a novel enzymatic saccharification method, up to 40% of xylose and 60% of arabinose were released from wet-milled corn fiber without chemical pretreatment. Corn bran from a dry milling process proved to be a comparable substrate. Defatted germ meals from both wet and dry milling were efficiently saccharified by this method.

Last Modified: 12/21/2014