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United States Department of Agriculture

Agricultural Research Service

Research Project: Optimizing the Biology of the Animal-Plant Interface for Improved Sustainability of Forage-Based Animal Enterprises

Location: Forage-Animal Production Research

Title: Switchgrass (Panicum virgatum) fermentation by sequential culture of Clostridium thermocellum and Clostridium beijerinckii: effect of particle size on gas production

Authors
item Elia, Noelia -
item Flythe, Michael
item Nokes, Sue -

Submitted to: American Society for Microbiology General Meeting
Publication Type: Abstract Only
Publication Acceptance Date: April 15, 2013
Publication Date: May 30, 2013
Citation: Elia, N.M., Flythe, M.D., Nokes, S.E. 2013. Switchgrass (Panicum virgatum) fermentation by sequential culture of Clostridium thermocellum and Clostridium beijerinckii: effect of particle size on gas production. American Society for Microbiology General Meeting. 207:2476.

Technical Abstract: Fuel alcohols can be produced by fermenting cellulosic biomass. Clostridium beijerinckii produces both ethanol and butanol, but it is non-cellulolytic. Cellulose requires saccharification prior to fermentation by C. beijerinckii. In contrast, the thermophile, Clostridium thermocellum, is highly cellulolytic. The purpose of this study was to determine if C. thermocellum can be used as a biological pretreatment for switchgrass fermentation by C. beijerinckii. The hypotheses were: 1) C. thermocellum would liberate sugars that could be used by C. beijerinckii, and 2) cellulosis would be surface area-dependent.

Last Modified: 7/24/2014
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