Table 2 Radical Scavenging activity 50 values (μg) of the methanol extracts and compounds from the leaves of H. Lanceolatum and P. aurantiacum
Test substance | Rsa50 (μg) |
|---|---|
H. lanceolatum extract | 30.99 ± 0.87e P. |
aurantiacum extract | 6.35 ± 0.10b,c |
Isogarcinol | 1.01 ± 0.24b |
1,3,6-trihydroxyxanthone | 4.73 ± 0.80b |
Kenganthranol B | 21.93 ± 5.98d |
2,2’,5,6’-tetrahydroxybenzophenone | na |
Physcion | na |
1,8-dihydroxy-3-geranyloxy-6-methylanthraquinone | na |
Vismiaquinone | na |
L-ascorbic acid | 0.089 ± 0.05a |