Table 4. Unique significant metabolites detected by GC-MS and LC-MS. Only those that increased with percentage of pork contamination in beef mince are shown.
| Significant unique metabolites | Technique | MSI level | Identifier from relevant database |
| 3-Oxohexadecanoic acid glycerides | LC-MS | 2 | N/A |
| Arabitol | GC-MS | 1 | CHEBI:22605 |
| CE(22 : 5) | LC-MS | 2 | LMST01020031 |
| Cer(d18 : 1/24 : 1) | LC-MS | 2 | LMSP02010009 |
| Citric acid | GC-MS and LC-MS | 1 | CHEBI:30769 |
| Creatinine | GC-MS | 1 | CHEBI:16737 |
| Decanoylcholine | LC-MS | 2 | CHEBI:74107 |
| Glucose 6-phosphate | GC-MS | 2 | CHEBI:17665 |
| Glycine | GC-MS | 1 | CHEBI:15428 |
| Glycyl-Lysine | LC-MS | 2 | CHEBI:73909 |
| Heptadecane | GC-MS | 1 | CHEBI:16148 |
| Hexano-dibutyrin | GC-MS | 2 | PUBCHEM:551329 |
| Malic acid | GC-MS | 1 | CHEBI:6650 |
| myo-inositol | GC-MS | 1 | CHEBI:17268 |
| N-Carboxyethyl-g-aminobutyric acid | LC-MS | 2 | HMDB02201 |
| Oleic acid | LC-MS | 2 | CHEBI:16196 |
| Pentadecane | GC-MS | 2 | CHEBI:28897 |
| PG(36 : 4) | LC-MS | 2 | N/A |
| Phosphate | GC-MS | 1 | HMDB01429 |
| Prostaglandin D2 ethanolamide | LC-MS | 2 | CHEBI:85174 |
| Pyroglutamic acid | GC-MS | 1 | HMDB00267 |
| TG(16 : 0/15 : 0/18 : 4) | LC-MS | 2 | N/A |
| xi-2-Ethyl-1-hexanol | LC-MS | 2 | HMDB31231 |