Table 1.
General structure of procyanidins (condensed tannins)
| Recovery | Average Molecular | |
| Time (h) | Weight (Da) | |
| Fraction I | 2:30–4 | 600 |
| Fraction II | 4–4:35 | 800 |
| Fraction III | 4:35–6 | 900 |
| Fraction IV | 6–7 | 1000 |
| Fraction V | 7–8 | 1200 |
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