Nutrient-supplemented propagation of Saccharomyces cerevisiae improves its lignocellulose fermentation ability.

ABSTRACT: Propagation conditions have been shown to be of considerable importance for the fermentation ability of Saccharomyces cerevisiae. The limited tolerance of yeast to inhibitors present in lignocellulosic hydrolysates is a major challenge in second-generation bioethanol production. We have investigated the hypothesis that the addition of nutrients during propagation leads to yeast cultures with improved ability to subsequently ferment lignocellulosic materials. This hypothesis was tested with and without short-term adaptation to wheat straw or corn stover hydrolysates during propagation of the yeast. The study was performed using the industrial xylose-fermenting S. cerevisiae strain CR01. Adding a mixture of pyridoxine, thiamine, and biotin to unadapted propagation cultures improved cell grow

SUBMITTER: van Dijk M 

PROVIDER: S-EPMC7455642 | biostudies-literature | 2020 Aug

REPOSITORIES: biostudies-literature