Table 2.
Volatile organic compounds detected in fermentations of S. cerevisiae growing in glucose minimal salt medium. ND, not detected.
| Compound | GC-MS | MCC-IMS | peak | reduced inverse ion mobility 1/K0 (Vs cm−2) | MCC-IMS retention time (s) | GC-MS retention time (min) |
|---|---|---|---|---|---|---|
| 2,3-butanediol | x | x | 0.575 | 4.5 | 26.517 | |
| 2,3-hexanedione | x | x | C3-7 | 0.570 | 19.4 | 9.633 |
| 2-pentanone | x | x | C3-5 | 0.554 | 6.4 | 5.029 |
| acetoin | x | x | 0.532 | 8.5 | 16.932 | |
| benzaldehyde | x | x | 0.566 | 37.5 | 25.366 | |
| butyric acid | x | x | 0.630 | 24.4 | 30.127 | |
| ethanol | x | x | C3-15 | 0.516 | 4.0 | 4.193 |
| isobutyric acid | x | x | C3-8 | 0.618 | 10.4 | 27.827 |
| isovaleric acid | x | ND | − | − | 31.594 | |
| 2-phenylethanol | x | x | 0.578 | 4.5 | 39.670 |