Table 2.
Antioxidant potential of H. italicum samples determined by DPPH test and expressed as EC50 and ascorbic acid equivalents (AAE).
| Sample | EC50 [µg/mL] | Inhmax [%] | mg AAE/g Dry Mass |
|---|---|---|---|
| Ascorbic acid | 3.5 | 90.2 | / |
| HII MWE | 26 ± 1 a,b | 83 ± 3 | 30 ± 3 a |
| HIT MWE | 15 ± 1 | 82.75 ± 0.07 | 104 ± 33 c |
| HII EWE | 20 ± 1 | 83.0 ± 0.6 | 44 ± 2 a |
| HIT EWE | 19 ± 7 | 83 ± 2 | 66 ± 5 |
| HII HWE | 41 ± 4 a,d | 83.2 ± 0.9 d | 22 ± 20 d |
| HIT HWE | 29 ± 4 e | 82.8 ± 0.8 e | 28 ± 29 e |
| HII CWE | 268 ± 67 a | 75 ± 5 a | 3.8 ± 0.3 a |
| HIT CWE | 171 ± 63 | 86.6 ± 0.9 | 5.7 ± 0.9 |
MWE—methanol:water extract, EWE—ethanol:water extract, HWE—hot water extract and CWE—cold water extract. a Statistical significance (p < 0.01) between HII and HIT (MWE; EWE; CWE; HWE), b between HII MWE and HII EWE, c between HIT MWE and HIT EWE, d between HII HWE and HII CWE, e between HIT HWE and HIT CWE.