Investigation on the influence of spray-drying technology on the quality of Sicilian Nero d’Avola wines
The purpose of the present work was to find a correlation between microencapsulation technology applied to
wines and the resulting quality of the wine itself in terms of volatile composition and phenolic profile. To this
aim, samples of Nero d’Avola wines produced in Sicily (Italy) were investigated in order to: i) elucidate the
aromatic composition by means of HS–SPME coupled with GC–MS; ii) assess the polyphenolic content by UHPLC
mass spectrometry; iii) compare the results obtained from both the screenings with those relative to the same
wines that had previously been subjected to spray-drying. The results showed a marked reductionThe results
here obtained evidenced a marked reduction of odour active compounds in microencapsulated wines, after
resolubilization in water/ethanol; when considering the total amount of volatiles, a twofold reduction was
observed. Conversely, the qualitative analysis of phenolic compounds and anthocyanin-derived pigments
showed no influence of the spray-drying process on these functional constituents.