Pretreatment, hydrolysis and fermentation of lignocellulosic material

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The short-term objective of the proposed research is to optimize the hydrolysis and fermentation of lignocellulosic wastes or other low cost lignocellulosic materials. Our focus is primarily on pretreatment and on fermentation of inhibitory mixed sugar substrates. Ultimately, the goal is to incrementally improve the unit operations such that the overall economics of the process become viable. Within this overall objective, we have a number of specific objectives, namely to: (1) Improve our understanding of the role of lignin as an inhibitor of enzymatic hydrolysis, (2) to further develop oxygen delignification as a pretreatment for enzymatic hydrolysis, by extending the reaction conditions and through the use of catalysts, (3) to extend substrate evaluated to include recycled fibre and mixed urban lignocellulosics, (4) to develop conditions whereby hydrolysates can be readily and quantitatively fermented to ethanol.