Sunflower oil was used in a base-line study, to determine the effect
of emulsion formation on oxidation potential of the oil, at elevated
temperatures. Lipid hydroperoxide values were measured to
determine the initial rate of oxidation, because they are the first
products formed as a result of lipid oxidation. The initial level of lipid
hydroperoxides in emulsions and bulk oil were similar, indicating
that the emulsification process did not contribute to increased
hydroperoxide levels.