are presented in Fig. 4. As an example, the kinetics of bleaching in
the absence and presence of oxidized apple tannins A15ox in weight
equivalents is illustrated. Trolox and all tested grape seed and apple
tannins delayed AAPH induced oxidation of stripped tung oil, without
exhibiting a significant lag phase. As explained by Laguerre et al.
(2008) this absence of a lag phase is characteristic of molecules that
rather scavenge AAPH-derived peroxyl radicals, instead of directly
reducing the lipoperoxyl radical derived from oil. Thus Trolox and
tannins seem to behave as retarder antioxidants rather than pure