A multivariate analysis of variance on Chardonnay wines was
carried out with initial sugar contents and yeast strain as the main
effects. Results are shown inTable 2. Levels of fi ve out of eight es-ters, one out of four alcohols, octanoic acid, and ditertbutyl phenol
showed significant differences between wines coming from musts
with different sugar contents. Only ethyl acetate was higher at
lower sugar concentration. When comparing strains, 12 out of 14
compounds were statistically signi ficant among them. The lowest
levels for ester compounds and the highest for alcohols were found
for the evolved strains L76M2 and/or L76M4.