Figure 3

Time-dependent changes in the amount of SQOOH isomers in SQ samples oxidized by singlet oxygen oxidation in the presence of 1, 10, or 50 mM EP (A); and samples oxidized by free radical oxidation via heating at 40 °C, 50 °C, or 60 °C (B). All samples were prepared in triplicate, and bars denote mean ± SE.