Monday, August 11, 2008
P28
Assessing the impact of inhibitory factors on the fermentation efficiency of an SSF system for lignocellulosic bioethanol production
Myoung Kim, Sergio Arellano, Jason Nichols, Bruce Link, Stacy Miles, Paul Oeller, and Simon Warner. Biomass Traits, Syngenta Biotechnology, Inc., 3054 E. Cornwallis Rd., Research Triangle Park, NC 27709
One process for producing ethanol from lignocellulosic plant materials is Simultaneous Saccharification and Fermentation (SSF). The SSF system provides some process advantages such as the mitigation of feedback inhibition by saccharification end-products from the enzymatic hydrolysis of the plant biomass. However, the inhibitory compounds carried over from the pretreatment process or released from plant extracts may hinder the performance of fermenting organisms in SSF. We propose a general method to assess the impact of these inhibitory compounds on the fermentation efficiency of a lignocellulosic bioethanol process.
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