Table 4. Correlation coefficients (R) between phenolics and colour parameters of chokeberry juices.
| Colour parameters | TPC | TN | TF | TA |
|---|---|---|---|---|
| L* | –0.21 | –0.61a | –0.10 | –0.76b |
| a* | –0.02 | –0.52a | –0.08 | –0.81b |
| b* | –0.21 | –0.61a | –0.10 | –0.76b |
| h° | –0.28a | –0.59a | –0.17 | –0.70b |
| C* | –0.06 | –0.54a | –0.04 | –0.81b |
a,bsignificant at p≤0.05 and p≤0.001, respectively Contents of total phenolics (TPC), total nonflavonoids (TN), total flavonoids (TF) and total anthocyanins (TA) are expressed as mg per L. TPC, TN and TF are expressed as mg of gallic acid equivalents (GAE), while TA is expressed as mg of cyanidin-3-glucoside equivalents (CGE)