Method for producing flocculating alcohol-fermenting yeast and flocculating alcohol-fermenting yeast

摘要

The invention provides a method for production of non-uracil-requiring flocculant alcohol-fermenting yeast, comprising a step of introducing the Saccharomyces cerevisiae- derived URA3 gene only at one of the two LEU2 loci on the chromosomes of Saccharomyces cerevisiae strain FSC27 (FERM P-16023).