Table 2.
Differences in total relative abundance of VOC families in relation to day of storage and peach versus nectarine.
| Acetate esters | Non-acetate esters | Alcohols | Aldehydes | Alkanes | Alkenes | Alkyne | Aromatic VOCs | Cyclo alkanes | Ketones | Lactones | Terpenes | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mean total relative abundance (TRA) | 7.08 | 17.62 | 1.56 | 1.86 | 19.98 | 0.92 | 0.07 | 1.2 | 4.88 | 4.18 | 7.13 | 32.67 |
| ± SD | 7.76 | 14.47 | 1.62 | 3.82 | 17.81 | 3.89 | 0.29 | 1.89 | 8.88 | 4.64 | 8.05 | 18.98 |
| Mean TRA D0 | 5.47 | 10.52 | 1.19 | 0.56 | 24.91 | 1.8 | 0.13 | 1.02 | 7.04 | 4.03 | 6.37 | 35.56 |
| Mean TRA D7 | 8.69 | 24.72 | 1.94 | 3.16 | 15.04 | 0.03 | 0 | 1.37 | 2.72 | 4.34 | 7.89 | 29.78 |
| P value* | ns | 0 | ns | 0.01 | 0.02 | 0.02 | ns | ns | ns | ns | 0.03 | ns |
| Mean TRA for peaches (S, SR, RS) | 12.27 | 22.17 | 1.33 | 3.08 | 13.69 | 1.79 | 0.13 | 1.57 | 2.37 | 4.62 | 9.17 | 28.05 |
| Mean TRA for nectarines (BB, C, BT) | 1.89 | 13.07 | 1.79 | 0.64 | 26.27 | 0.04 | 0 | 0.83 | 7.4 | 3.74 | 5.09 | 37.28 |
| P value* | 0 | ns | 0.02 | ns | 0.03 | ns | ns | ns | ns | 0.15 | 0.01 | 0.03 |
*Based on ANOVA followed by a Tukey’s test, or a Kruskal Wallis followed by a Dunn’s test if the data did not conform to the normality and equal variance required for a parametric test.