Table 2.
Percentage composition of fatty acids in oils control sample (CTR) and ozonated samples. Values are presented as mean ± standard deviation (n = 2).
| Fatty acid | Sample CTR | Sample 1 | Sample 2 | Sample 3 | Sample 4 | Sample 5 | Sample 6 |
|---|---|---|---|---|---|---|---|
| C14:0 | 0.05 ± 0.00 a | 0.04 ± 0.00 a | 0.05 ± 0.00 a | 0.05 ± 0.00 a | 0.06 ± 0.00 a | 0.06 ± 0.00 a | 0.33 ± 0.02 b |
| C16:0 | 8.45 ± 0.25 a | 8.65 ± 0.11 a | 8.91 ± 0.08 a | 9.23 ± 0.08 a,b | 9.94 ± 0.05 b | 11.53 ± 0.18 c | 14.67 ± 0.53 d |
| C16:1 | 0.41 ±0.00 a | 0.42 ± 0.00 a | 0.40 ± 0.03 a | 0.06 ± 0.03 b,c | 0.06 ± 0.00 b,c | 0.04 ± 0.00 b | 0.12 ± 0.03 c |
| C17:0 | 0.24 ±0,00 a | 0.24 ± 0.00 a | 0.41 ± 0.00 a,b | 0.78 ± 0.05 b | 1.57 ± 0.02 c | 2.72 ± 0.07 d | 6.58 ± 0.37 e |
| C17:1 | 0.06 ±0.00 a | 0.06 ± 0.00 a | 0.06 ± 0.00 a | 0.05 ± 0.00 a | 0.03 ± 0.03 a | 0.05 ± 0.01 a | 0.65 ± 0.03 b |
| C18:0 | 3.24 ± 0.14 a | 3.21 ± 0.00 a | 3.41 ± 0.01 a | 3.82 ± 0.08 a | 4.68 ± 0.02 b | 6.52 ± 0.17 c | 8.58 ± 0.40 d |
| C18:1n9c | 53.19 ± 0.68 a | 52.11 ± 0.68 a,b | 51.02 ± 0.07 b,c | 50.19 ± 0.38 c,d | 46.56 ± 0.16 e | 40.07 ± 0.51 f | 17.50 ± 0.60 g |
| C18:1n7 | 2.29 ± 0.00 a | 2.18 ± 0.04 a,b | 2.16 ± 0.01 a,b | 2.07 ± 0.09 b,c | 1.98 ± 0.02 c | 1.76 ± 0.04 d | 0.49 ± 0.02 e |
| C18:2n6c | 30.70 ± 1.13 a | 29.72 ± 0.39 a | 28.89 ± 0.05 a,b | 27.35 ± 0.42 b | 23.24 ± 0.13 c | 17.05 ± 0.48 d | 5.87 ± 0.28 e |
| C18:3n3 | 0.17 ± 0.02 a | 0.16 ± 0.01 a | 0.18 ± 0.01 a | 0.16 ± 0.02 a | 0.15 ± 0.01 a,b | 0.10 ± 0.02 b | n.d. |
| C20:0 | 0.31 ± 0.01 a | 0.31 ± 0.02 a | 0.31 ± 0.00 a | 0.30 ± 0.03 a | 0.34 ± 0.07 a | 0.42 ± 0.03 a | 0.39 ± 0.02 a |
| C20:1 | 0.27 ± 0.01 a | 0.27 ± 0.01 a | 0.27 ± 0.00 a | 0.24 ± 0.03 a,b | 0.19 ± 0.02 b,c | 0.12 ± 0.02 c | 0.14 ± 0.03 c |
| C22:0 | 0.50 ± 0.05 a | 0.47 ± 0.08 a | 0.60 ± 0.01 a,b | 0.84 ± 0.08 b | 1.27 ± 0.01 c | 1.93 ± 0.09 d | 2.29 ± 0.13 e |
| C24:0 | 0.13 ± 0.00 a | 0.12 ± 0.00 a | 0.13 ± 0.02 a | 0.13 ± 0.03 a | 0.21 ± 0.06 a | 0.39 ± 0.07 b | 0.51 ± 0.01 b |
| Total ID | 100.00 | 97.99 | 96.79 | 95.26 | 90.09 | 82.76 | 58.00 |
n.d.: not determined; total ID: % of identified compounds. ANOVA analysis was performed, with different letters (a–g) indicating significant differences (p < 0.05). CTR: control (non ozonated oil); samples 1, 2, 3, 4, 5, and 6 correspond to 10, 20, 40, 80, 160, and 320 min of ozone treatment, respectively.