Table 1.
Storage Time (Weeks) | Oxidation Parameters | ||||||
---|---|---|---|---|---|---|---|
PV * ± SD (meq O2/kg) |
p-AnV * ± SD | TOTOX | K232 * ± SD | K268 * ± SD | AV * ± SD (mg NaOH/g) |
FFA * ± SD (%) |
|
Refined Rapeseed Oil without β-Sitosteryl Sinapate | |||||||
0 | 0.10 ± 0.05 a | 0.77 ± 0.05 a | 4.79 | 2.775 ± 0.010 d | 0.522 ± 0.009 a | 0.0487 ± 0.0012 a | 0.0344 ± 0.0008 a |
1 | 2.94 ± 0.23 b | 2.12 ± 0.08 b | 7.99 | 2.824 ± 0.013 e | 0.562 ± 0.006 c | 0.0837 ± 0.0015 e | 0.0591 ± 0.0010 e |
2 | 8.51 ± 0.66 g | 4.74 ± 0.03 e | 21.75 | 2.832 ± 0.017 e,f | 0.605 ± 0.012 d | 0.0954 ± 0.0009 g | 0.0674 ± 0.0007 g |
3 | 9.98 ± 0.28 h | 8.44 ± 0.47 f | 28.39 | 2.850 ± 0.003 f | 0.626 ± 0.010 e | 0.1110 ± 0.0006 h | 0.0785 ± 0.0006 h |
4 | 12.41 ± 0.28 i | 10.42 ± 0.28 g | 35.24 | 2.882 ± 0.006 g | 0.704 ± 0.012 f | 0.1257 ± 0.0007 i | 0.0888 ± 0.0005 i |
Refined Rapeseed Oil with β-Sitosteryl Sinapate | |||||||
0 | 2.24 ± 0.15 b | 0.71 ± 0.04 a | 5.19 | 2.415 ± 0.005 a | 0.523 ± 0.005 a | 0.0480 ± 0.0002 a | 0.0339 ± 0.0002 a |
1 | 3.56 ± 0.45 c | 2.27 ± 0.27 b | 9.40 | 2.430 ± 0.003 a,b | 0.527 ± 0.006 a,b | 0.0578 ± 0.0007 b | 0.0408 ± 0.0005 b |
2 | 4.25 ± 0.13 d | 2.78 ± 0.07 c | 11.27 | 2.433 ± 0.008 b,c | 0.531 ± 0.004 a,b | 0.0652 ± 0.0018 c | 0.0460 ± 0.0013 c |
3 | 4.84 ± 0.15 e | 3.52 ± 0.10 d | 13.20 | 2.438 ± 0.008 b,c | 0.538 ± 0.003 b | 0.0753 ± 0.0013 d | 0.0532 ± 0.0010 d |
4 | 6.00 ± 0.06 f | 4.54 ± 0.12 e | 16.54 | 2.448 ± 0.004 c | 0.540 ± 0.004 b | 0.0864 ± 0.0009 f | 0.0610 ± 0.0007 f |
* n = 3; SD—Standard Deviation; Different letters (a–i) within the same column indicate significant differences between oxidation parameters of the stored oils during 4 weeks (one-way ANOVA and Duncan test, p < 0.05).