Characterization of osmotolerant hybrids obtained by fusion between protoplasts of Saccharomyces cerevisiae and heat treated protoplasts of Torulaspora delbrueckii

摘要

Saccharomyces cerevisiae was fused with heat-treated protoplasts of an osmotolerant yeast, Torulaspora delbrueckii, to obtain hybrids having increased tolerance to increased glucose concentrations (up to 700 g/l). The production of glycerol and arabitol by the hybrids was within the range of those of the parental strains, but the production of ethanol was higher.