Table 2.
Inhibitory effect of the P. sylvestris seeds essential oil on the primary oxidation of sunflower oil measured by peroxide value method (meq of oxygen kg−1).
| Treatment | 0 Days | 4 Days | 8 Days | 12 Days | 16 Days | 20 Days |
|---|---|---|---|---|---|---|
| Control | 1.71 a (±0.15) | 4.4 a (±0.45) | 7.25 a (±0.25) | 19.25 a (±0.54) | 26.07 a (±0.3) | 41.58 a (±0.74) |
| BHT | 1.61 a (±0.15) | 2.8 bc (±0.08) | 4.29 de (±0.3) | 6.43 d (±0.46) | 9.53 d (±0.28) | 12.31 d (±0.37) |
| BHA | 1.68 a (±0.14) | 2.9 b (±0.02) | 4.97 bc (±0.14) | 6.86 cd (±0.09) | 10.63 c (±0.23) | 14.58 bc (±0.28) |
| EO (100 mg/L) | 1.74 a (±0.09) | 4.01 a (±0.17) | 5.2 b (±0.14) | 8.02 b (±0.2) | 13.06 b (±0.06) | 15.09 b (±0.06) |
| EO (200 mg/L) | 1.72 a (±0.08) | 2.34 cd (±0.19) | 4.56 cd (±0.15) | 7.39 bc (±0.17) | 11.11 c (±0.32) | 13.86 c (±0.01) |
| EO (300 mg/L) | 1.7 a (±0.06) | 1.82 d (±0.02) | 4.04 e (±0.08) | 6.93 cd (±0.06) | 10.82 c (±0.13) | 11.91 d (±0.23) |
a, b, c, d, e—values with different superscript are significantly different (p < 0.01) according to Duncan test; lowest values are marked; bolded in grey cells; each value is the Mean ± SD.