| Parameter Samples | Total phenol (mg/100g) |
| Doum fruit powder | 122.55 ± 1.77a |
| Control cake | 22.96 ± 0.79f |
| 5% D.P | 34.86 ± 0.01e |
| 10% D.P | 41.65 ± 1.19d |
| 15% D.P | 50.32 ± 2.32c |
| 20% D.P | 66.92 ± 3.08b |