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. 2021 Jun 4;14(11):3092. doi: 10.3390/ma14113092

Table 1.

Oxidation parameters of rapeseed oils without ant with β-sitosteryl sinapate stored under accelerated conditions.

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).