Table 2.
SPME-GC/MS analysis of fish samples’ headspace. List of volatile organic compounds (VOCs) most correlated with sample degradation. For each VOC, the retention time, the CAS number (°# CAS) and the reference mass spectra similarity are specified. In the Samples column, R indicates samples stored and analyzed at 25 °C, while F indicates samples stored at 4 °C and analyzed at room temperature (25 °C).
| Number | Retention Time (min) | Putative Identification | °# CAS | Reference Mass Spectra Similarity (%) | Samples |
|---|---|---|---|---|---|
| 1 | 5.160 | 3-methyl-1-butanol | 123-51-3 | 92 | R; F |
| 2 | 5.306 | dimethyl disulfide | 624-92-0 | 94 | R |
| 3 | 7.293 | 3-pentanone | 96-22-0 | 80 | R; F |
| 4 | 8.927 | 2,3-heptanedione | 96-04-8 | 91 | R |
| 5 | 9.259 | ethyl crotonate | 10544-63-5 | 95 | R |
| 6 | 9.626 | ethyl isovalerate | 108-64-5 | 92 | R; F |
| 7 | 10.627 | 2-heptanone | 110-43-0 | 88 | R; F |
| 8 | 11.987 | ethyl tiglate | 5837-78-5 | 93 | R |
| 9 | 12.555 | dimethyl trisulfide | 3658-80-8 | 91 | R |
| 10 | 13.024 | phenol | 108-95-2 | 96 | R; F |
| 11 | 13.340 | ethyl hexanoate | 123-66-0 | 97 | R; F |
| 12 | 15.153 | 1-undecene | 821-95-4 | 91 | R; F |
| 13 | 18.611 | indole | 120-72-9 | 87 | R |