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Ethanol production from supercritical-fluid-extrusion cooked sorghum
- Abstract::
- Sorghum (Sorghum bicolor (L.) Moench) is a starch-rich grain similar to maize (Zea mays L.), but sorghum has been underutilized for biobased products and bioenergy. This study was designed to investigate the effects of supercritical-fluid-extrusion (SCFX) of sorghum on ethanol production. Morphology, chemical composition, and thermal properties of extruded sorghum were characterized. Analysis of extruded sorghum showed increased measurable starch content, free sugar content, and high levels of gelatinized starch. SCFX cooked and non-extruded sorghum were further liquefied, saccharified, and fermented to ethanol by using Saccharomyces cervisiae. The ethanol yield increased as sorghum concentration increased from 20 to 40% for both extruded and non-extruded sorghum. Ethanol yields
- Author(s):
- Zhan, X. , Wang, D. , Bean, S.R. , Mo, X. , Sun, X.S. , Boyle, D.
- Subject(s):
- grain sorghum , ethanol production , fuel production , ethanol , supercritical fluid extraction , cooking , biofuels , extrusion , chemical composition , thermal properties , starch , sugar content , starch gels , alcoholic fermentation , Saccharomyces cerevisiae , processing technology
- Description:
- Includes references
- Source:
- Industrial crops and products 2006 May, v. 23, issue 3
- Language:
- English
- Year:
- 2006
- Collection:
- Journal Articles, USDA Authors, Peer-Reviewed
- File:
- Download [PDF]
- Rights:
- Works produced by employees of the U.S. Government as part of their official duties are not copyrighted within the U.S. The content of this document is not copyrighted.
