when exogenously added to the liposome
suspension, it is no more able to inhibit lipoperoxidation,
probably because it cannot spontaneously localize
within the lipid phase. In our experimental conditions,
gamma-oryzanol appeared to be a chain-breaking
antioxidant less efficient than alpha-tocopherol, which
scavenges organic radicals at lower concentrations. The
effect of gamma-oryzanol on organic radicals is confirmed
by its ability in scavenging the lipid-soluble
DPPH• radical