Although many studies are needed
to improve the stain and fermentation process to produce
more ethanol, S. cerevisiae, an efficient ethanol producer,
has many advantages such as a well studied genetic and
physiological background, faster fermentation rates with
the ability to grow under both aerobic and anaerobic
conditions, a high tolerance to ethanol and osmotic tolerance,
easy to manipulate and safety for foods [16,18e20].
Hence, S. cerevisiae has significant potential in environmentally
friendly ethanol fermentation processes. Therefore,
this novel high ethanol-fermenting yeast requires
isolation and study