Research Article

Antioxidant Activities of Stilbenoids from Rheum emodi Wall

Figure 2

Scavenging effect on DPPH radical (a) and superoxide anion (b). ▲, , ■, □, ●, and ○ indicated PICE, PICG, RES, POD, Vc, and EDA, respectively. Results are presented as the mean scavenging percentage (DRSA% for DPPH radical and SASA% for superoxide anion) from triplicate tests.