| EVOO | Extra-virgin olive oil |
| RI | Ripening index |
| PCA | Principal component analysis |
| PV | Peroxide value |
| A | Acidity |
| PUFA | Polyunsaturated fatty acids |
| PPO | Polyphenol oxidase |
| POD | Peroxidase |
| 3,4-DHPEA | Hydroxytyrosol |
| 3,4-DHPEA-AC | Hydroxytyrosol acetate |
| HDCM-OA | Hydroxydecarboxymethyl oleuropein aglycone |
| HOA | Hydroxyoleuropein aglycone |