DPPH radical-scavenging activity of different antioxidants.

<p>Data are shown as IC₅₀ (l<i> µ</i>M). The hydroxyl radical-scavenging properties of different antioxidants were determined by spectrophotometry at 517 nm. Results are the mean of three separate determinations ± SEM (error bars), <i>p</i><0.05 vs CA.