Research Article
Determination of Tannins of Three Common Acacia Species of Sudan
Table 2
Absorbance of solutions of Acacia species parts after precipitation of tannins with hydrated-hide powder (at 725 nm).
| Species | Plant part | Absorbance | I | II | Average value |
| Acacia nilotica | Leaves | 0.053 | 0.053 | 0.053 | Acacia seyal | Leaves | 0.308 | 0.309 | 0.308 | Acacia nilotica | Bark | 0.239 | 0.241 | 0.240 | Acacia seyal | Bark | 0.273 | 0.276 | 0.274 | Acacia senegal | Bark | 0.340 | 0.338 | 0.339 | Acacia nilotica | Mature fruits | 0.060 | 0.065 | 0.063 | Acacia nilotica | Immature fruits | 0.056 | 0.056 | 0.055 |
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