Table 2.
The IC50 values of G. bicolor extracts in DPPH radical scavenging activity and metal chelating assay.
| Extract | IC50 value (mg/mL) | |
|---|---|---|
| DPPH radical scavenging activity | Metal chelating assay | |
| Methanol | 4.93 ± 0.15c | 4.10 ± 0.10b |
| Hexane | 11.15 ± 0.21d | 4.90 ± 0c |
| Ethyl acetate | 0.53 ± 0.01b | 3.80 ± 0.10b |
| Water | 13.57 ± 0.23e | 28.37 ± 0.40d |
| BHA* | 0.03 ± 0a | — |
| EDTA* | — | 0.04 ± 0a |
*Positive reference standard. Values are expressed as mean ± standard deviation (n = 3); means with different letters (a–e) in the same column were significantly different (P < 0.05, ANOVA).