Aroma and flavor PCA (Figs. 4 and 5) showed that descriptors with the same name, measured by aroma and flavor were correlated, with the exception of aroma total intensity correlated with PC1 and flavor total intensity correlated with PC3. PC1 separated samples on toasted (also partially explained by PC3) and margarine, PC2 on sweet and flour (also partially explained by PC3), and PC3 on salty, cheese and total flavor intensity.