This research is devoted to the investigation of sunflower oil oxidation during its processing (storage and refining). We have investigated free fat acids content, peroxide and anisidine value of sunflower oil during its storage, neutralization, bleaching, winterization and deodorization. We demonstrated that free fat acids content decrease due to neutralization and deodorization and it was rather low in RBD oil. Peroxide value increased more than three times during storage and neutralization, but we observed very low peroxide value after bleaching and insignificant rise during storage of packed RBD oil.
All things considered we have concluded that high level of peroxides in crude oil induces high anisidine value in RBD oil.
