Table 1.
Effect of variety on total polyphenol contents (mg GAE/gdw) of bound and free polyphenols in cassava leaves of undigested sample (methanolic extract of dry leaf without digestion).
| Harvest maturity | Varieties | Total polyphenol contents |
|
|---|---|---|---|
| Bound polyphenols | Free polyphenols | ||
| 6MAP | TMS92/0326 | 15.14 ± 0.18aA | 40.57 ± 0.28dD |
| TMS96/1414 | 12.32 ± 0.23bB | 42.63 ± 0.82cD | |
| IRAD4115 | 7.00 ± 0.27cD | 39.16 ± 1.51dD | |
| EN | 6.12 ± 0.46dD | 84.20 ± 0.87aA | |
| AD | 5.19 ± 0.13eD | 52.54 ± 0.07bB | |
| 9MAP | TMS92/0326 | 10.52 ± 0.34aB | 41.91 ± 0.52dC |
| TMS96/1414 | 8.15 ± 0.56dcC | 77.23 ± 0.53bA | |
| IRAD4115 | 8.35 ± 0.09dcB | 81.38 ± 2.86aB | |
| EN | 10.04 ± 0.28bB | 60.52 ± 1.52cB | |
| AD | 8.79 ± 0.39cC | 75.07 ± 0.46bA | |
| 12MAP | TMS92/0326 | 8.96 ± 0.52dC | 47.17 ± 1.02cB |
| TMS96/1414 | 15.04 ± 0.38aA | 53.24 ± 1.14bC | |
| IRAD4115 | 11.63 ± 0.29bA | 89.61 ± 0.87aA | |
| EN | 8.43 ± 0.35dC | 45.90 ± 1.67dD | |
| AD | 9.72 ± 0.26cAB | 44.09 ± 0.72dD | |
| 15MAP | TMS92/0326 | 5.00 ± 0.27eD | 69.76 ± 0.79aA |
| TMS96/1414 | 7.58 ± 0.04dCD | 59.49 ± 0.79bB | |
| IRAD4115 | 8.51 ± 0.29cBC | 70.64 ± 0.67aC | |
| EN | 19.16 ± 0.36aA | 57.19 ± 1.48cC | |
| AD | 10.13 ± 0.19bA | 51.27 ± 0.68dC | |
MAP: month after planting; Cassava leaves harvested at 6MAP (onset dry season), 9MAP (main dry season), 12MAP (onset rainy season) and 15MAP (main rainy season); values represent means ± standard deviation of four replications (n = 4); Values are expressed in milligram (mg) gallic acid equivalent (GAE) per gram dry weight (gdw) of cassava leaves. Values followed by different lowercase letters in different variety in each column for the same month are significantly different (p < 0.05); values followed by different capital letters for each variety in each column for all month are significantly different (p < 0.05).