No | Compoundsa | Odour quality | RI on BPX5 | FD factor | GC peak area %b |
---|---|---|---|---|---|
1 | Acetic acid | Vinegar | 600 | 4 | 0.25 ± 0.00 |
2 | 3-Methyl butanal | Malty | 668 | 2 | 0.55 ± 0.01 |
3 | Butanoic acid | Sweaty | 763 | 2 | 0.19 ± 0.05 |
4 | Pentan-2-one | Ether-like | 711 | 4 | 0.10 ± 0.01 |
5 | Dihydro-2-methyl-3(2H)-furanone | Toasty | 808 | 16 | 6.65 ± 0.12 |
6 | 2-Methylpyrazine | Toasty | 820 | 64 | 8.87 ± 0.78 |
7 | 3-Furaldehyde | Almond-like | 828 | 8 | 2.15 ± 0.01 |
8 | 2-Furanmethanol | Caramel | 866 | 4 | 1.13 ± 0.05 |
9 | 2-Acetylfuran | Cocoa/almond | 893 | 128 | 10.02 ± 0.14 |
10 | 2-Ethylpyrazine | Nutty/roasty | 911 | 16 | 28.19 ± 1.02 |
11 | Benzaldehyde | Almond-like | 960 | 8 | 4.17 ± 0.01 |
12 | 5-Methyl-2-furfural | Spice/caramel | 978 | 16 | 20.68 ± 0.11 |
13 | 2-Pentyl furan | Green bean | 993 | 16 | 12.54 ± 0.33 |
14 | Ethyl furfural | Caramel/spice | 1020 | 64 | 13.29 ± 1.58 |
15 | Limonene | Orange-like | 1033 | 4 | 0.58 ± 0.00 |
16 | Phenyl acetaldehyde | Sweet rose | 1043 | 16 | 1.56 ± 0.05 |
17 | 2-Acetylpyrrole | popcorn | 1045 | 256 | 18.31 ± 0.04 |
18 | 2-Pyrrole carboxaldehyde | Musty/coffee | 1047 | 16 | 9.80 ± 0.36 |
19 | 3-Methyl phenol | Phenolic/smoky | 1076 | 8 | 3.36 ± 0.16 |
20 | 2-Ethyl-3,5-dimethylpyrazine | Earthy/roasty | 1088 | 16 | 4.03 ± 0.03 |
21 | Linalool | Floral | 1100 | 4 | 0.52 ± 0.01 |
22 | 5-Hydroxy methyl furfural | Chamomile flower-like | 1163 | 32 | 1.46 ± 0.11 |
23 | β-Cyclocitral | Hay-like | 1218 | 2 | 0.10 ± 0.01 |
24 | 2,6-Dimethoxyphenol | Smoky | 1349 | 2 | 0.45 ± 0.01 |
25 | β-Caryophyllene | Woody/spice | 1408 | 8 | 1.62 ± 0.11 |
26 | α-Ionone | Floral | 1422 | 4 | 0.79 ± 0.14 |
27 | α-Copaene | Woody | 1430 | 8 | 15.08 ± 1.20 |
28 | β-Ionone | Violet | 1493 | 2 | 1.29 ± 0.01 |
29 | 4-Carbethoxybutyrolactone | Roasty/smoky | 1893 | 16 | 0.49 ± 0.03 |