Fullerene C60 as an inhibitor of high temperature lipid oxidation

Non-isothermal oxidation of a model saturated lipid (stearic acid) in the bulk phase in the presence of fullerene C60 at concentrations of 1–8 mM was monitored by differential scanning calorimetry in order to determine the kinetic parameters that describe the global first order oxidation process. The activation energies, pre-exponential factors, and rate constants calculated by the Ozawa–Flynn–Wall method for the first detectable exothermic effect of oxidation, indicate the antioxidant behavior of C60 over a wide range of temperatures that makes it a non-corrosive agent effectively increasing the oxidative stability of lubricants and biolubricants.