Table 2.
Native anthocyanins, polymeric pigments and chromatic characteristics.
| Samples | Total Anthocyanins mg/L | Short Polymeric PigmentsAbs | Color IntensityAbs | Tonality | |
|---|---|---|---|---|---|
| Zero Time | Control | 1795.13 ± 17.37 A a | 0.28 ± 0.01 A b | 6.84 ± 0.05 B e | 0.51 ± 0.00 ABC c |
| ET | 1795.13 ± 17.37 A a | 0.28 ± 0.00 A c | 6.82 ± 0.00 BC e | 0.51 ± 0.00 C d | |
| TT | 1795.13 ± 17.37 A a | 0.28 ± 0.00 A d | 6.77 ± 0.01 C e | 0.51 ± 0.00 BC d | |
| GT | 1795.13 ± 17.37 A a | 0.28 ± 0.02 A d | 6.82 ± 0.04 BC e | 0.52 ± 0.01 AB c | |
| CT | 1795.13 ± 17.37 A a | 0.28 ± 0.00 A c | 6.94 ± 0.01 A e | 0.52 ± 0.00 A d | |
| Sat.-1 (9d) | Control | 1715.06 ± 74.88 BC b | 0.26 ± 0.00 B c | 7.32 ± 0.09 A d | 0.51 ± 0.00 B c |
| ET | 1681.19 ± 29.41 C b | 0.27 ± 0.00 A d | 7.39 ± 0.06 A d | 0.52 ± 0.00 A c | |
| TT | 1758.16 ± 33.91 AB a | 0.26 ± 0.00 B e | 7.35 ± 0.11 A d | 0.51 ± 0.00 B d | |
| GT | 1813.51 ± 44.49 A a | 0.27 ± 0.00 A e | 7.35 ± 0.03 A d | 0.51 ± 0.00 B c | |
| CT | 1741.04 ± 35.88 BC a | 0.27 ± 0.00 A d | 7.37 ± 0.03 A d | 0.51 ± 0.00 B e | |
| Sat.-2 (12d) | Control | 1679.00 ± 4.31 A b | 0.28 ± 0.01 C b | 7.79 ± 0.05 B c | 0.51 ± 0.00 B c |
| ET | 1621.58 ± 45.35 A b | 0.28 ± 0.00 C c | 7.92 ± 0.00 A c | 0.52 ± 0.00 A c | |
| TT | 1672.76 ± 23.72 A b | 0.30 ± 0.00 A c | 7.96 ± 0.10 A c | 0.52 ± 0.01 A c | |
| GT | 1681.54 ± 3.96 A b | 0.29 ± 0.00 B c | 8.02 ± 0.07 A c | 0.53 ± 0.00 A c | |
| CT | 1532.24 ± 107.80 B b | 0.29 ± 0.00 B b | 8.00 ± 0.09 A c | 0.52 ± 0.00 A c | |
| Sat.-3 (14d) | Control | 1517.78 ± 55.37 A c | 0.31 ± 0.00 B a | 8.70 ± 0.33 A a | 0.56 ± 0.00 A b |
| ET | 1420.47 ± 64.09 B c | 0.30 ± 0.01 B b | 8.76 ± 0.09 A a | 0.55 ± 0.00 A b | |
| TT | 1428.70 ± 40.49 B c | 0.31 ± 0.00 A b | 8.88 ± 0.04 A a | 0.55 ± 0.00 A b | |
| GT | 1446.34 ± 0.75 B c | 0.30 ± 0.00 C b | 9.00 ± 0.46 A a | 0.54 ± 0.02 A b | |
| CT | 1467.64 ± 21.04 AB b | 0.32 ± 0.00 A a | 8.75 ± 0.06 A a | 0.55 ± 0.00 A b | |
| Sat.-4(17d) | Control | 1168.75 ± 44.13 A d | 0.32 ± 0.01 B a | 8.14 ± 0.21 B b | 0.60 ± 0.01 B a |
| ET | 1121.57 ± 29.36 BC d | 0.33 ± 0.01 A a | 8.58 ± 0.07 A b | 0.60 ± 0.01 AB a | |
| TT | 1133.60 ± 3.46 ABC d | 0.34 ± 0.01 A a | 8.53 ± 0.07 A b | 0.61 ± 0.00 A a | |
| GT | 1099.69 ± 1.86 C d | 0.34 ± 0.01 A a | 8.50 ± 0.01 A b | 0.61 ± 0.00 A a | |
| CT | 1160.10 ± 36.23 AB c | 0.32 ± 0.00 B a | 8.56 ± 0.11 A b | 0.61 ± 0.00 A a |
All the data are expressed as means ± standard deviation of four replicates (two experimental replicates per two analytical replicates). Different letters indicate a statistically significant difference between enological tannins additions during oxygen treatment (A, B, C), while for a different stage of oxygen saturations (a, b, c) (p < 0.05).