Ethanol production bySaccharomyces cerevisiae promoted by γ-alumina

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...

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...

New generation biofuel: continuous acidogenesis of sucrose-raffinose mixture simulating vinasse is promoted by γ-alumina pellets

BACKGROUND This investigation comprises a contribution on the production of a new generation biofuel using the industrial liquid waste of bioethanol distilleries, known as vinasse. This study focuses on the exploitation of vinasse as an acidogenesis substrate for volatile fatty acids and simultaneous ethanol production. These products can be used for ester production, which is the new generatio...

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