Table 2.
PV values (meq O2/kg of product) and TBARs values (mg MDA/kg of product) for the three oils: unheated (T0), after 10 and 20 days at 65 °C (T1 and T2, respectively) and after 90 min at 180 °C (T3).
| Oil | T0 | T1 | T2 | T3 | |
|---|---|---|---|---|---|
| Coconut | 0 ± 0 aA | 0 ± 0 aA | 0 ± 0 aA | 20.35 ± 2.16 aA | |
| PV | Rapeseed | 14.57 ± 1.02 bC | 16.30 ± 4.69 bC | 18.14 ± 6.32 cC | 3.12 ± 0.32 aC |
| Grape seed | 12.23 ± 2.19 bB | 22.51 ± 3.52 cB | 21.86 ± 5.51 dB | 2.47 ± 0.31 aB | |
| Coconut | 0 ± 0 aA | 0 ± 0 aA | 0 ± 0 aA | 2.19 ± 0.10 bA | |
| TBARs | Rapeseed | 6.37 ± 0.87 bC | 5.51 ± 0.72 bC | 1.96 ± 0.10 aB | 7.57 ± 0.85 cC |
| Grape seed | 1.11 ± 0.22 aB | 3.69 ± 0.67 bB | 1.09 ± 0.11 aC | 3.92 ± 0.23 bB |
Small letters in the rows indicate statistically significant differences (p < 0.05) among treatments for the same oil (Bonferroni post hoc test). Different capital letters in the columns (within each parameter) represent statistically significant differences (p < 0.05) among the three oils for each treatment (Bonferroni post hoc test). Mean values ± standard deviations.