Peroxide Value and p‐Ansidine Tests
The primary oxidation products were evaluate with peroxide values (PV) tests according to the AOAC Official Method 965.33.12 (Official methods of analysis of AOAC international, 17th edn. Maryland, USA). While the p-anisidine test was used in the assessment of secondary oxidation products according to the AOCS Official Method Cd 18‐90 (2002). (Barriuso et al., 2013; Symoniuk et al., 2016)