Table 2.
HS-GC-MS | HS-GC-IMS | Sensory Properties [20,21,22,23,24,32,33,34,35] |
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---|---|---|---|---|---|---|---|
Analyte | EVOO | VOO | LOO | EVOO | VOO | LOO | |
Ethyl acetate | - | - | - | 0.17 ± 0.16 a | 0.46 ± 0.56 b | 0.99 ± 1.47 b | Fusty, winey-vinegary, fruity, aromatic, ethereal, sweet |
1-penten-3-one | - | - | - | 0.66 ± 0.09 a | 0.31 ± 0.01 b | 0.14 ± 0.01 c | Green, pungent, sweet |
2-pentanone | - | - | - | 0.19 ± 0.14 a | 0.17 ± 0.08 a | 0.15 ± 0.09 a | Sweet |
4-methyl-pentan-2-one | - | - | - | 0.70 ± 0.71 a | 0.62 ± 0.49 a | 1.52 ± 0.77 a | Fruity, sweet, ethereal |
Hexanal | 0.70 ± 0.33 a | 0.91 ± 0.22 a | 1.10 ± 0.4 b | 0.86 ± 0.01 a | 0.97 ± 0.60 b | 0.99 ± 0.20 b | Mustiness-humidity, fusty, winey-vinegary, rancid, green-sweet, green apple, grass |
Trans-2-pentenal | - | - | - | 0.83 ± 0.12 a | 1.06 ± 0.12 a,b | 1.30 ± 0.13 b | Winey-vinegary, pungent, green |
Trans-2-hexen-1-al | 0.70 ± 0.28 a | 0.45 ± 0.17 b | 0.40 ± 0.19 b | 0.74 ± 0.15 a | 0.48 ± 0.19 b | 0.39 ± 0.21 b | Mustiness-humidity, fusty, winey-vinegary, rancid, bitter almond, green |
Heptanal | - | - | - | 0.49 ± 0.10 a | 0.50 ± 0.08 a | 0.94 ± 0.12 b | Rancid, fatty, woody |
6-methyl-5-hepten-2-one | 0.16 ± 0.15 a | 0.18 ± 0.29 a | 0.67 ± 0.93 b | - | - | - | Mustiness-humidity, fusty, rancid, pungent, green |
3-hexenyl acetate | 1.01 ± 0.17 a | 0.50 ± 0.23 b | 0.47 ± 0.3 b | - | - | - | Green banana, green leaves, fruity |
Nonanal | 0.28 ± 0.12 a | 0.31 ± 0.18 a | 0.63 ± 0.36 b | 0.35 ± 0.15 a | 0.37 ± 0.19 a | 0.76 ± 0.42 b | Rancid, fatty, waxy, pungent |
Decanal | 1.56 ± 0.20 a | 1.63 ± 0.75 a | 1.63 ± 0.53 a | - | - | - | Rancid |
Trans-2-decenal | 2.17 ± 1.97 a | 2.32 ± 1.39 a | 2.41 ± 1.60 b | - | - | - | Rancid |
Hexyl acetate | - | - | - | 0.52 ± 0.01a | 0.47 ± 0.01 a | 0.22 ± 0.09 b | Fruity, green, sweet |
a, b, c superscripts represent different groups of classification for a specific compound according to the Tukey’s test. EVOO: extra virgin olive oil; VOO: virgin olive oil; LOO: lampante olive oil.