Table 3.
Correlations between values of standard reduction potentials and antioxidant activity of GSH and catechins or only catechin series determined by chemical (ABTS, DPPH, FC) as well as biological (CAA) tests examined using Pearson's coefficients.
| Pearson's coefficients |
||||||||
|---|---|---|---|---|---|---|---|---|
| Compounds | DPPH n10 | ABTS n10 | FC n60 | CAA (1 µM) | CAA (10 µM) | CAA (100 µM) | CAA (1000 µM) | |
| E° (1st infl.) | GSH, catechins | − 0.930 | − 0.807 | − 0.778 | − 0.781 | − 0.792 | − 0.940 | − 0.956 |
| catechins | − 0.966 | − 0.966 | − 0.903 | − 0.727 | − 0.794 | − 0.928 | − 0.969 | |
| E° (1st and 2nd infl.) | GSH, catechins | − 0.929 | − 0.837 | − 0.812 | − 0.772 | − 0.750 | − 0.907 | − 0.951 |
| catechins | − 0.940 | − 0.938 | − 0.886 | − 0.697 | − 0.737 | − 0.884 | − 0.951 | |