Metabolic and Evolutionary Engineering of Diploid Yeast for the Production of First- and Second-Generation Ethanol.

ABSTRACT: Despite a growing preference for second-generation (2G) ethanol in industries, its application is severely restricted owing to a major obstacle of developing a suitable yeast strain for fermentation using feedstock biomasses. In this study, a yeast strain, Saccharomyces cerevisiae A31Z, for 2G bioethanol production was developed from an industrial strain, Angel, using metabolic engineering by the incorporation of gene clusters involved in the xylose metabolism combined with adaptive evolution for evolving its anti-inhibitory properties. This strain outcompeted its ancestors in xylose utilization and subsequent ethanol production and manifested higher tolerance against common inhibitors from lignocellulosic hydrolysates, and also it lowered the production of glycerol by-product. Furt

SUBMITTER: Sun Y 

PROVIDER: S-EPMC8831863 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature