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. 2018 Sep 12;23(9):2328. doi: 10.3390/molecules23092328

Figure 2.

Figure 2

Electron paramagnetic resonance (EPR) spectra obtained from the reaction of stilbenoids with reactive oxygen species (ROS) (A) DPPH free radical and (B) OH free radical. The free radical scavenging activities were compared according to the decrease in peak intensity. THS—trans-4-hydroxystilbene; RES—resveratrol; PIC—piceatannol.