Table 2.
Solvent | Volume (ml) |
TP (mg/l) | TP (mg) | % TP in dry extract |
PACs (mg/l) | PACs (mg) | % PACs in dry extract | PACs as % of TP |
---|---|---|---|---|---|---|---|---|
50% EtOH (10:1) | 793 ± 40 | 947 ± 73.1 | 750 ± 19 ** | 15.1 ± 1.6 | 495 ± 73 | 391 ± 39 | 7.9 ± 1.3 | 52 ± 4.1 |
50% EtOH (5:1) | 328 ± 3 | 1545 ± 193 | 507 ± 58 | 12.6 ± 1.2 | 1170 ± 152 | 384 ± 47 | 9.6 ± 1.0 | 76 ± 7.0 ** |
75% EtOH (10:1) | 878 ± 45 | 863 ± 114 | 761 ± 139 | 11.8 ± 1.3 | 531 ± 31 | 466 ± 4.2 ** | 7.3 ± 1.5 | 63 ± 11 |
75% EtOH (5:1) | 418 ± 33 | 1610 ± 157 | 678 ± 118 | 15.7 ± 1.8 | 841 ± 11.5 | 352 ± 23 | 8.3 ± 1.5 | 53 ± 5.8 |
n=3 independent sample lots for each solvent condition.
T-test, ** p< 0.01
TP = total polyphenols calculated as gallic acid equivalents. PACs = proanthocyanidins calculated as proanthocyanidin A2 equivalents