Table 1.
Chemical properties for Maclura tinctoria wood and bark (% of dry wood/bark).
| Chemical properties | Wood | Bark | |
|---|---|---|---|
| Solvents extraction (%) | Cyclohexane : ethanol (1 : 2, v/v) | 2.8 ± 0.4 | 20.8 ± 0.2 |
| Ethanol (95%) | 3.9 ± 0.7 | 1.4 ± 0.7 | |
| Hot water | 4.2 ± 0.9 | 12.5 ± 1.5 | |
| NaOH 1% (m/v) | — | 15.9 ± 0.8 | |
| TOTAL | 10.8 ± 2.0 | 50.6 ± 3.5 | |
|
| |||
| Macromolecular composition (%) | Total extractives | 10.8 ± 1.0 | 50.6 ± 2.0 |
| Soluble lignin | 1.3 ± 0.00 | 0.4 ± 0.0 | |
| Insoluble lignin | 21.5 ± 1.3 | 18.8 ± 1.2 | |
| Holocellulose | 69.4 ± 2.2 | 29.1 ± 1.9 | |
| α-Cellulose | 46.0 ± 1.5 | — | |
| Hemicellulose | 23.6 ± 0.9 | — | |
| TOTAL | 103.0 ± 4.5 | 99.0 ± 5.1 | |
|
| |||
| Total phenol (mg of GAE/g) | Methanol : water extract (4 : 1, v/v) | 38.4 ± 0.4 | 35.0 ± 0.9 |
| Acetone : water extract (7 : 3, v/v) | 45.3 ± 0.9 | 43.2 ± 1.2 | |
| Proanthocyanidin (mg of CE/g) | Methanol : water extract (4 : 1, v/v) | 5.1 ± 0.6 | 3.9 ± 0.1 |
| Acetone : water extract (7 : 3, v/v) | 6.5 ± 0.6 | 4.9 ± 0.1 | |
|
| |||
| IC50 (μg/mL) | 18.7 ± 0.5 | 20.9 ± 0.6 | |