Fig. 1 Graph of ln(IPR) as a function of T data for five fatty acid methyl ester (FAME) mixtures. IPR = oxidative induction period measured by Rancimat instrument (h); T = temperature; CaME, PME and SME = canola, palm and soybean oil-FAME; MeC18:1 = methyl oleate (99.5 %); MeC18:2 = methyl linoleate (99.0 %). Lines drawn through the data points represent results from linear regression analyses according to Model A.
The linear correlation from application of Model A to IPR-T data was well established, with respect to correlation coefficients (R²) ≥ 0.985. The results also exhibited low standard
Table 2 Results from regression analysis of ln(IPR) versus T data (Model A ). ln(IPR) = A0 + A1(T); IPR in h, T in K