“…After irradiation, vitamin E residual concentration actually displays a maximum in the subsurface layers (Oral et al, 2007). This is an encouraging argument in favor of the model even if a most complete set of simulations is needed together with more accurate data on crystallinity profile, vitamin E and oxygen diffusivity etc... -D AH = 9.2×10 -10 cm 2 s -1 for AO1 from Roe et al (1974), Moisan (1980), Limm and Hollifield (1996) -D AH = 2.3×10 -8 cm 2 s -1 for AO2 from Moisan (1980). Using rates constants recalled in Table 1, the model simulates the depletion of each sort of phenols using vitamin E rate constants differing with the 2,6-di-tert-butyl phenols set expressing by the presence of constants expressing the stabilization reaction by P°, and a higher rate constant k S1 for stabilization by POO° trapping.…”