Ethanol Production Potential of Ethanol-Tolerant Saccharomyces and Non-Saccharomyces Yeasts

Improvement of ethanol production by ethanol-tolerant Saccharomyces cerevisiae UVNR56

Ethanol tolerance is one of the important characteristics of ethanol-producing yeast. This study focused on the improvement of ethanol tolerance of Saccharomyces cerevisiae NR1 for enhancing ethanol production by random UV-C mutagenesis. One ethanol-tolerant mutant, UVNR56, displayed a significantly improved ethanol tolerance in the presence of 15% (v/v) ethanol and showed a considerably higher...

Saccharomyces and Non-Saccharomyces Starter Yeasts

This chapter describes the importance of yeast in beer fermentation. Initially, the differences between Saccharomyces cerevisiae and Saccharomyces pastorianus in the production of “ale” and “lager” beers are analyzed. Then, the relationships between beer nutrients and yeast growth are discussed, with special emphasis on the production of the flavor compounds. The impact of the wort composition ...

Disruption of GAL1 Gene in Saccharomyces cerevisiae Leads to Higher Ethanol Production

Development on ethanol production from xylose by recombinant Saccharomyces cerevisiae

Xylose is the second major fermentable sugar present in lignocellulosic hydrolysates, so its fermentation is essential for the economic conversion of lignocellulose to ethanol. However, the traditional ethanol production strain Saccharomyces cerevisiae does not naturally use xylose as a substrate. A number of different approaches have been used to engineer yeasts to reconstruct the gene backgro...

Ethanol Production from Waste Potato Mash by Using Saccharomyces Cerevisiae

Bio-ethanol is one of the energy sources that can be produced by renewable sources. Waste potato mash was chosen as a renewable carbon source for ethanol fermentation because it is relatively inexpensive compared with other feedstock considered as food sources. However, a pretreatment process is needed: specifically, liquefaction and saccharification processes are needed to convert starch of po...