Table 1.
Recent studies on the characterization of bioactive phenolic compounds in olive mill wastes (OMWs).
| Molecule | Analytical Platform | Amount in OMWW (mg/g Dry Matter) | OMWW References | Amount in POC (mg/g Dry Matter) | POC References |
|---|---|---|---|---|---|
| Phenols | |||||
| Tyrosol | HPLC, MS, GC, NMR | 1.0–2.8 | [6,32,39,40,41,42] | 0.4–1 | [13,14,15,16] |
| Hydroxytyrosol | HPLC, MS, GC, NMR | 0.9–24 | [6,32,39,40,41,42] | 0.6–2 | [13,14,15,16] |
| Hydroxybenzoic acid | HPLC, MS, GC, NMR | 2–9 | [6,32,39] | / | / |
| Coumaric acid | HPLC, MS, GC, NMR | 1–2 | [32,39] | 0.1–0.6 | [13,16] |
| Gallic acid | HPLC, MS | 2–6 | [6,39] | / | / |
| Vanillic acid | HPLC, MS | 0.1–0.6 | [6,39] | 0.5–0.8 | [16] |
| Caffeic acid | HPLC, MS | 0.3–1.9 | [6,39] | 0.9–5.0 | [13,14,15] |
| Hydroxycinnamic acid | HPLC, MS | Detected | [41] | / | / |
| Polyphenols | |||||
| Quercetin-3-O-glucoside | HPLC, MS | 0.5–2.1 | [39,42] | / | / |
| Luteolin-7-O-glucosides | HPLC, MS | 25–55 | [6,40,42] | 0.5–1.2 | [13,15] |
| Secoiridoids | |||||
| Oleuropein | HPLC, MS, GC | 18–92 | [6,39,40,41,42] | 0.1–9.2 | [14,15,16] |
| Oleuropein aglycone | HPLC, MS | Detected | [40] | Detected | [14] |
| Ligstroside | HPLC, MS | Detected | [40] | / | / |
| Ligstroside aglycone | HPLC, MS | Detected | [40] | / | / |
| Olecantal | HPLC, MS | Detected | [40,42] | 0.1–0.4 | [13] |