Ethanol production from dilute-acid steam exploded lignocellulosic feedstocks using an isolated multistress-tolerant Pichia kudriavzevii strain.

ABSTRACT: Renewable and low-cost lignocellulosic wastes have attractive applications in bioethanol production. The yeast Saccharomyces cerevisiae is the most widely used ethanol-producing microbe; however, its fermentation temperature (30-35°C) is not optimum (40-50°C) for enzymatic hydrolysis in the simultaneous saccharification and fermentation (SSF) process. In this study, we successfully performed an SSF process at 42°C from a high solid loading of 20% (w/v) acid-impregnated steam explosion (AISE)-treated rice straw with low inhibitor concentrations (furfural 0.19 g l^-1 and acetic acid 0.95 g l^-1 ) using an isolate Pichia kudriavzevii SI, where the ethanol titre obtained (33.4 g_p  l^-1 ) was nearly 39% greater than that produced by conventional S. cerev

SUBMITTER: Yuan SF 

PROVIDER: S-EPMC5658621 | biostudies-literature | 2017 Nov

REPOSITORIES: biostudies-literature