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Mean concentrations of major phenolic compounds in oil palm phenolics (OPP).
| Concentration (mg/L) | |
|---|---|
| Protocatechuic acid | 50 |
| p-Hydroxybenzoic acid | 577 |
| Caffeoylshikimic acid | 890 |
| Total major phenolics | 1517 |
| Gallic acid equivalent (GAE) | 1500 |
| Amount supplemented to volunteers per day (150 mL OPP, twice per day) | 450 mg/day |
