Average percent composition (by mol) of extension subunits through maturity present in seed and skin for the 2002 and 2003 growing season ± standard error of the mean (n = 5).
| Composition (%) | ||||
|---|---|---|---|---|
| Skin | Seed | |||
| Extension subunits | 2002 | 2003 | 2002 | 2003 |
| (+)-Catechin (C) | 2.6 ± 0.1 | 2.8 ± 0.1 | 12.3 ± 0.3 | 13.5 ± 0.1 |
| (−)-Epicatechin (EC) | 61.5 ± 0.3 | 63.4 ± 0.2 | 76.8 ± 0.3 | 76.8 ± 0.3 |
| (−)-Epicatechin-3-O-gallate (ECG) | 1.4 ± 0.1 | 1.7 ± 0.1 | 10.9 ± 0.2 | 9.7 ± 0.3 |
| (−)-Epigallocatechin (EGC) | 34.5 ± 0.3 | 32.1 ± 0.3 | — | — |