Process for starch liquefaction and fermentation

US7914993B2 · kind B2 · utility

Assignee

• Syngenta Participations AG · CH

Inventors

• Christopher J. Batie · Durham, US
• Greg Crabb · Wake Forest, US
• George W. Aux · Morrisville, US
• Edward S. Cates · Raleigh, US
• Jay Austin Dinwiddie · Morrisville, US
• Aron Silverstone · Durham, US
• Rene Quadt · Chapel Hill, US
• Carl Miller · Raleigh, US

Key dates

• Filing date: May 29, 2008
• Grant date: Mar 29, 2011
• Expiry date: May 20, 2029

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E50/10
• WIPO field: Biotechnology
• WIPO sector: Chemistry

Abstract

The presently disclosed subject matter provides improved processes for processing starch from plant sources, including processes for starch liquefaction, for simultaneous liquefaction and saccharification, and for the preparation of ethanol. These processes can be performed without a pH adjustment and at relatively low temperatures. The processes can involve the use of starch-containing plant material derived from plants that express starch-digesting enzymes. The presently disclosed subject matter further relates to improved processes for the preparation of other starch-derived products, including dried distiller grain (dried distiller grain) and dried distiller grain and solubles (dried distiller grain and solubles), and to the starch-derived products, themselves.