Table 3. Phenolic Quantifications (mg/kg ± Standard Deviation) of Olive Root Bark and Wooda.
| concentration (mg/kg) |
|||
|---|---|---|---|
| class | phenolic compounds | root bark | root wood |
| simple phenols | hydroxytyrosol | 50.5 ± 0.4a | 359.8 ± 1.0b |
| phenolic acids | p-coumaric acid | 0.07 ± 0.0a | 0.05± 0.0a |
| secoiridoids and derivatives | verbascoside | 51 ± 0.8a | 191 ± 1.0b |
| oleacein | 185 ± 1.0a | 890 ± 1.9b | |
| aldehydic closed form of oleuropein aglycon | 357 ± 1.0a | 1209 ± 2.0b | |
| oleuropein | 3374 ± 2.5a | 7360 ± 2.5b | |
| oleocanthal | 989 ± 1.0a | 2115 ± 1.0b | |
| aldehydic closed form of ligstroside aglycon | 50± 0.3a | 60 ± 0.9a | |
| monoaldehydic open form of oleuropein aglycon | 654 ± 1.0a | 2287 ± 1.2b | |
| monoaldehydic open form of ligstroside aglycon | 94 ± 0.6a | 4560 ± 1.5b | |
| total | 5754 ± 8.2a | 18672 ± 12b | |
| flavonoids | rutin | 47 ± 0.2a | 20 ± 0.1b |
| apigenin | 0.11 ± 0.0a | 0.08 ± 0.0a | |
| luteolin | 0.81 ± 0.0a | 0.28 ± 0.0a | |
| diosmetin | 0.57 ± 0.0a | 0.19 ± 0.0a | |
| total | 48.49 ± 0.2a | 20.55 ± 0.1b | |
| total | 5853.06 ± 8.8a | 19052.4 ± 13.1b | |
Each value represents the mean of three determinations (n = 3) ± standard deviation. Different letters within the same row indicate significant differences (p < 0.05) between the olive roots with different parts (bark and wood).