Conclusion
Three craft durum wheat beers, produced in a micro-brewery
located in the south-east of Sardinia, were assessed during aging
to evaluate flavor stability with variations in yeasts, time, and
temperature.
Volatile compounds, analyzed by GCeMS, changed over a period
of six months with a decrease in esters and higher alcohols and an
increase in carbonyl compounds. This trend was more evident at
the higher temperature.
Storage time, temperature and yeast did not significantly influence
beers physicalechemical parameters. Only beer color was
significantly different between the two temperatures, increasing at
the higher temperature.
The sensory profiles showed a reduction in some attributes
related to flavor and in-mouth sensations during storage, confirming
data obtained by GCeMS. Despite the increase in carbonyl
compounds as revealed by GCeMS analysis, to the end of aging the
intensity of off-flavors did not exceed the value of 1 in the scale of
intensity from 0 to 10. No significant differences were observed in