The study of viability and morphology of yeasts strain Bingen, Steinberg and Sauternes of Saccharomyces cerevisiae in a stresses conditions

Abstract

The Saccharomyces cerevisiae yeasts are used for ethanol production by alcohol industries. Apart from obtaining ethanol for alcoholic drinks, they have been used in human and animal feeding. Yeasts contain approximately 40% dry matter of proteins and they can tolerate and produce until 18%-20% (v/v) of ethanol. Nowadays, yeasts are the object of studies of unicells proteins production as well as many works about ethanol tolerance and fermentation.