Table 2. Antioxidant activity of M. × giganteus extracts. Data are expressed as a means with standard deviation in milligram of equivalent per gram of dry extract.
| FRAP(mg AAE g−1) | CUPRAC(mg AAE g−1) | TAC (mg TE g−1) | DPPH(EC50 mg mL−1) | TPC(mg GAE g−1) | TFC (mg QE g−1) | |
|---|---|---|---|---|---|---|
| Root MeOH | 50.3 ± 3.5 | 29.4 ± 0.5 | 594.9 ± 1.6 | 0.6 ± 0.10 | 87.0 ± 0.2 | 1.7 ± 0.2 |
| Root DCM | 9.5 ± 0.4 | 51.2 ± 0.5 | 115.4 ± 5.5 | 12.4 ± 1.50 | 13.2 ± 1.4 | 9.0 ± 0.5 |
| Rhizome MeOH | 25.5 ± 5.5 | 32.6 ± 2.5 | 377.7 ± 0.8 | 1.7 ± 0.10 | 32.8 ± 4.2 | 0.5 ± 0.1 |
| Rhizome DCM | 11.2 ± 0.1 | 29.7 ± 0.1 | 171.9 ± 0.6 | 6.4 ± 0.30 | 18.4 ± 3.4 | 5.4 ± 0.1 |
| Stem MeOH | 21.8 ± 5.9 | 22.1 ± 2.9 | 300.1 ± 22.3 | 2.5 ± 0.20 | 34.9 ± 0.4 | 1.4 ± 0.2 |
| Stem DCM | 5.7 ± 0.6 | 40.8 ± 5.6 | 109.7 ± 3.6 | 11.5 ± 0.60 | 9.7 ± 2.1 | 2.9 ± 0.1 |
| Leaf MeOH | 34.7 ± 2.9 | 45.8 ± 0.9 | 395.3 ± 5.3 | 0.9 ± 0.10 | 39.0 ± 0.4 | 6.9 ± 0.4 |
| Leaf DCM | 5.0 ± 0.1 | 18.9 ± 0.7 | 310.4 ± 3.1 | >20.0a | 10.3 ± 2.1 | 20.6 ± 0.2 |
a
Even at 20 mg mL−1 of extract only 17% of DPPH was inhibited.