Volatile-Olfactory Profiles of cv. Arbequina Olive Oils Extracted without/with Olive Leaves Addition and Their Discrimination Using an Electronic Nose

Figure 2

E-nose-MOS-PCA model: unsupervised classification of cv. Arbequina olive oils extracted without (control, •) or with the addition of olive leaves (1%, w/w) from cv. Arbequina (▲) or cv. Santulhana (■) differentiation based on the response of resistance signals acquired 9 MOS sensors (9 MOS × 6 different feature extraction parameters = 54 signals: LP, INT, MAX, MIN, SUM, and MEAN).