Journal
CRITICAL REVIEWS IN BIOTECHNOLOGY
Volume 37, Issue 2, Pages 177-189Publisher
TAYLOR & FRANCIS LTD
DOI: 10.3109/07388551.2015.1128877
Keywords
Bioethanol; glycolaldehyde; lignocellulose; redox cofactors; S. cerevisiae; SUMOylation
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Funding
- Grants-in-Aid for Scientific Research [15K07363] Funding Source: KAKEN
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Although there have been approximately 60 chemical compounds identified as potent fermentation inhibitors in lignocellulose hydrolysate, our research group recently discovered glycolaldehyde as a key fermentation inhibitor during second generation biofuel production. Accordingly, we have developed a yeast S. cerevisiae strain exhibiting tolerance to glycolaldehyde. During this glycolaldehyde study, we established novel approaches for rational engineering of inhibitor-tolerant S. cerevisiae strains, including engineering redox cofactors and engineering the SUMOylation pathway. These new technical dimensions provide a novel platform for engineering S. cerevisiae strains to overcome one of the key barriers for industrialization of lignocellulosic ethanol production. As such, this review discusses novel biochemical insight of glycolaldehyde in the context of the biofuel industry.
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