From: Antioxidant activity relationship of phenolic compounds in Hypericum perforatumL.
DPPH | SO | LP | NO | FRAP | ||
---|---|---|---|---|---|---|
Fractions | IC 50 [μg/mL] | [μg/umol]a | IC 50 [μg/mL] | IC 50 [μg/mL] | IC 50 [μg/mL] | [mg Fe/g]b |
I/1 | 1.55 | 69.2 | 11.1 | 2.25 | 32.8 | 80.0 |
I/2 | 1.09 | 48.7 | 1.86 | 7.92 | > > 22 | 104.0 |
I/3 | 6.66 | 297 | 11.7 | 17.8 | 53.7 | 10.0 |
I/4 | 32.8 | 1464 | 20.6 | 2.33 | > 120 | 7.00 |
I/5 | 11.0 | 491 | 32.4 | 8.09 | 53.7 | 12.0 |
II/2s | 0.520 | 23.2 | 7.10 | 7.00 | 83.9 | 25.0 |
II/2p | 1.16 | 51.8 | 5.70 | 12.2 | 30.2 | 44.0 |
II/3 | 2.61 | 117 | 8.80 | 8.31 | 6.11 | 17.0 |
BHT | 8.28 | 369 | n/ac | 0.859 | n/a | 25.3 |
BHA | 12.4 | 553 | n/a | 0.138 | n/a | n/a |