文摘
Saccharomyces cerevisiae is the most convenient organism widely used for ethanol production from sugars in industry thanks to the high rates of growth and ethanol fermentation and biosynthesis under unaerobic conditions, as well as its tolerance to a high ethanol concentration and low pH level. Lignocellulosic biomass is considered to be the most advantageous source of sugars. The sugar which can be obtained from it is the combination of hexoses and pentoses. However, the S. cerevisiae strains in current use are poorly adapted to the fermentation of pentasaccharides, which make it imperative to optimize the metabolic processes in the currently available bioethanol producers for pentasaccharides utilization. This work reviews the approaches which were currently developed to address this issue using recombinant strains of S. cerevisiae.