Two groups of variables explained the PC1. The first was
composed by alcohol content (ALC), all the CIELab parameters and
all the sensory acceptance attributes. The traditional Isabel wine
(TI) and submerged cap Isabel wine (SCI) were related with this
group of variables. The results showed the potential of the submerged
cap winemaking procedure for Isabel wines, since it presented
high acceptance for all sensory attributes and no significant
differences when compared to TI. This high acceptance was driven
by the alcohol content, contributing to the fruity aroma and flavor
(Ferreira, Fernandez, Pe~na, Escudero, & Cacho, 1995), and by the
color parameters showing an intense relationship of these properties
on the appearance of the wine and mainly on overall
acceptance. It was possible to suggest that the higher acceptance TI
wines was also suggested by anthocyanin content (ANT and ANT
non bleach), since this sample also showed strong relationship with
this parameter in PC2.