Biotechnology Letters, Vol.22, No.24, 1947-1951, 2000
Evaluation of stereoisomers of 2,3-butanediol and acetoin to differentiate Saccharomyces cerevisiae and Kloeckera apiculata wine strains
The (R)/(S) ratios of acetoin were always higher in wines obtained by Saccharomyces cerevisiae than in those obtained by Kloeckera apiculata. A significantly different behaviour was determined between the two species as regards contents and ratios of 2,3-butanediols: S. cerevisiae produced more (R,R)-2,3-butanediol (about 80%), whereas K. apiculata produced more meso-form (about 90%).