| GC-TOF-MS | Gas chromatography-time of flight-mass spectrometry |
| UHPLC-LTQ-IT-MS/MS | Ultrahigh performance liquid chromatography-linear trap quadruple-ion trap-mass spectrometry/mass spectrometry |
| PCA | Principal component analysis |
| PLS-DA | Partial least squares-discriminant analysis |
| OPLS-DA | Orthogonal partial least squares-discriminant analysis |
| DEG | Differentially expressed gene |
| EC | Enzyme commission |