Fermentation of Biorefinery Streams

Conference poster, 2011

Fermentation of biorefinery streams with S. cerevisiae Peter Adeboye, Eva Albers, Maurizio Bettiga and Lisbeth Olsson Our project aims at developing robust bioprocessing steps for the production of materials and energy from biomass, such as second‐generation ethanol by fermentation with Saccharomyces cerevisiae. We will concentrate on the fermentation of different biorefinery streams, generated by innovative biomass treatments. Fermentability of the substrates generated by the other project partner (Innventia AB) will be investigated, as well as maximum ethanol productivity and yield. Since lignocellulosic material can be a nutrient‐(especially nitrogen‐) poor and challenging substrate for the fermenting microorganism, the impact of different substrates on yeast metabolism will be investigated. Therefore, part of the research efforts of the project will be dedicated to fundamental studies on the effect of exposure to lignocellulose hydrolysate on energy metabolism, redox power homeostasis, cell integrity and viability. In addition, the effects of nutrient limitations will also be considered.