Research Article
Phytochemical Characteristics, Free Radical Scavenging Activities, and Neuroprotection of Five Medicinal Plant Extracts
Table 2
Antioxidant activities of the methanol extracts for five medicinal plants and the positive controls.
| | Medicinal name and positive control | HRP-luminol-H2O2 assaya | Pyrogallol-luminol assaya | CuSO4-Phen-Vc-H2O2 assaya | Luminol-H2O2 assaya |
| | Medicinal name | | | | | | Spatholobus suberectus | 3.3 ± 0.6 | >1000 | 17.8 ± 1.6 | 1.3 ± 0.3 | | Uncaria rhynchophylla | 3.6 ± 0.4 | 474.6 ± 15.1 | 5.9 ± 0.5 | 2.0 ± 0.5 | | Alpinia officinarum | 47.0 ± 2.4 | 77.1 ± 7.5 | 8.3 ± 0.3 | 2.3 ± 0.4 | | Drynaria fortunei | 2.9 ± 0.3 | >1000 | 27.7 ± 1.0 | 9.2 ± 2.5 | | Crataegus pinnatifida | 544.2 ± 21.8 | 328.6 ± 10.2 | 13.2 ± 0.6 | 1.1 ± 0.1 |
| | Positive control | | | | | | Vitamin C | 14.8 ± 6.2 | >1000 | 688.3 ± 29.7 | 32.8 ± 8.9 | | Trolox | 3.2 ± 0.1 | 209.6 ± 17.0 | 5.8 ± 1.0 | 0.8 ± 0.1 |
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The data are presented as mean ± SD for three replicates.
aIC50 values in μg/mL.
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