These eight strains of T. delbrueckii that fermented maltose were
evaluated for their fermentative performance on the brewing wort.
The parameters of the fermentation kinetics are reported in Table 2.
As expected, none of these eight strains showed fermentation parameters
comparable to those of the commercial S. cerevisiae starter
strain. This behaviour is important since the strains with lower
fermentation performances in the wort are generally of interest for
low-alcohol beer production. However, among the strains tested,
T. delbrueckii strain DiSVA 254 showed a good fermentative performance,
with the highest fermentation rate and final CO2 production.
. For this reason, Torulaspora delbrueckii DiSVA 254 was
selected for the subsequent trials in pure and mixed fermentations
with the S. cerevisiae starter strain US-05, to evaluate the influence
of T. delbrueckii DiSVA 254 (henceforth: T. delbrueckii) on the
analytical and aromatic profiles of the beers produced