Table 4.
Volatile compounds in passion fruit wine fermented by commercial yeast strain ES488 (ES), BV818 (BV), VIC (VI) and CY3079 (CY) selected for partial least squares regression analysis (volatiles with OAV > 1 and esters with OAV > 0.1).
| Compound Number | Volatile Compound | Odor Series | ES | BV | VI | CY |
|---|---|---|---|---|---|---|
| 1 | Isovaleric acid | 8 | 1.53 | 1.01 | 1.56 | 1.85 |
| 2 | Hexanoic acid | 8 | 33.28 | 27.1 | 45 | 43.93 |
| 3 | Octanoic acid | 8 | 108.81 | 117.54 | 141.99 | 148.55 |
| 4 | Decanoic acid | 8 | 118.78 | 157.16 | 147.79 | 150.57 |
| 5 | 9-Decenoic acid | 7, 8 | 3.81 | 8.69 | 4.92 | 5.76 |
| 6 | Lauric acid | 8 | 7.64 | 5.47 | 7.32 | 8.38 |
| 7 | Isobutanol | 3, 7 | 1.19 | 0.84 | 1.46 | 0.59 |
| 8 | Isopentanol | 7, 5, 8 | 6.33 | 4.39 | 6.69 | 6.73 |
| 9 | 2-Heptanol | 1, 6 | 2.15 | 1.83 | 2.19 | 2.2 |
| 10 | 2-Nonanol | 7 | 3.64 | 2.87 | 3.62 | 3.81 |
| 11 | Phenyl ethyl alcohol | 2 | 0.87 | 2.49 | 3.63 | 6.86 |
| 12 | Ethyl butanoate | 1 | 5.48 | 4.33 | 5.6 | 6.6 |
| 13 | Ethyl hexanoate | 1 | 20.23 | 12.63 | 23.28 | 22.59 |
| 14 | Ethyl caprylate | 1,2 | 8.05 | 4.27 | 10.43 | 8.59 |
| 15 | Ethyl caprate | 1 | 0.96 | 0.85 | 0.99 | 1 |
| 16 | Ethyl 9-decenoate | 1 | 2.64 | 2.34 | 2.52 | 2.99 |
| 17 | Ethyl cinnamate | 2 | 8.27 | 7.74 | 8.94 | 9.73 |
| 18 | Ethyl acetate | 1, 2 | 3.4 | 2.36 | 3.67 | 3.54 |
| 19 | Isopentyl acetate | 1 | 57.79 | 45.4 | 72.66 | 84.38 |
| 20 | β-Myrcene | 1, 3 | 14.72 | 13.83 | 19.1 | 20.57 |
| 21 | α-Terpineol | 2, 5 | 7.45 | 6.08 | 9.88 | 8.31 |
| 22 | Linalool | 2, 5 | 186.35 | 142.99 | 204.87 | 207.99 |
| 23 | Citronellol | 2 | 5.3 | 3.48 | 5.54 | 2.67 |
| 24 | Geranyl acetone | 2 | 3.36 | 3.03 | 2.11 | 2.56 |
| 25 | cis-Rose oxide | 2 | 19.8 | 17.03 | 18.2 | 20.01 |
| 26 | trans-Rose oxide | 2 | 11.7 | 11.07 | 11.85 | 11.41 |
| 27 | Geraniol | 2 | 3.25 | 2.82 | 3.2 | 3.27 |
| 28 | β-Damascone | 1, 2, 5 | 27.94 | 26.46 | 30.44 | 30.02 |
| 29 | α-Ionone | 1 | 9.15 | 6.98 | 9.56 | 9.26 |
| 30 | β-Ionone | 2 | 8729.67 | 7111.36 | 8219.21 | 10,015.43 |
| 31 | TDN | 2, 7 | 1.82 | 1.53 | 1.67 | 2.05 |
| 32 | Benzothiazole | 7 | 0 | 0 | 8.28 | 17.6 |
| 33 | 2-Methyltetrahydrothiophen-3-one | 7 | 95.02 | 158.31 | 124.65 | 32.88 |
| 34 | Ethyl 3-(methylthio)propionate | 1 | 10.34 | 0 | 9.88 | 11.46 |
| 35 | 3-Mercaptohexanol | 1 | 91.83 | 163.19 | 135.26 | 167.71 |
| 36 | 3-Mercaptohexyl acetate | 1 | 1332.66 | 0 | 0 | 0 |
| 37 | 2-Methyl-4-propyl-1,3-oxathiane | 1 | 3.16 | 3.17 | 3.61 | 0.39 |
| 38 | 3-(Methylthio)propyl acetate | 3 | 765.27 | 461.42 | 284.71 | 0 |
| 39 | Ethyl laurate | 1, 8 | 0.22 | 0.18 | 0.24 | 0.27 |
| 40 | Isobutyl acetate | 1, 7 | 0.24 | 0.18 | 0.33 | 0.18 |
| 41 | Phenethyl acetate | 1, 2 | 0.26 | 0.19 | 0.23 | 0.58 |
| 42 | Hexyl butyrate | 1 | 0.37 | 0.37 | 0.39 | 0.37 |
| 43 | Isoamyl caprylate | 1, 5, 8 | 0.17 | 0.11 | 0.18 | 0.19 |
| 44 | Methyl salicylate | 3 | 0.55 | 0.41 | 0.49 | 0.64 |
Bold indicates that the concentration of the compound exceeds the threshold.