TABLE 2.
Yeast strain effect on the concentrations of major volatiles in Chenin blanc wines as well as Colombar base wines and the respective 70% distillates
| Component | Concn (mg/liter)
|
|||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chenin blanc
|
Colombar base wine after alcoholic fermentation
|
70% Distillate after second distillation
|
||||||||||||||
| After alcoholic fermentation
|
After 6-mo bottle aging
|
|||||||||||||||
| VIN7 | VIN7 (pATF1-s) | VIN13 | VIN13 (pATF1-s) | VIN7 | VIN7 (pATF1-s) | VIN13 | VIN13 (pATF1-s) | WE228 | WE228 (pATF1-s) | VIN13 | VIN13 (pATF1-s) | WE228 | WE228 (pATF1-s) | VIN13 | VIN13 (pATF1-s) | |
| Acetic acid | 511.0 | 205.1 | 114.5 | 37.7 | 895.1 | 702.7 | 247.0 | 205.3 | 116.5 | 49.7 | 44.9 | 22.9 | 21.5 | 12.7 | 8.3 | 6.3 |
| Decanoic acid | 5.2 | 5.2 | 4.0 | 5.1 | 4.4 | 8.3 | 3.5 | 5.2 | 5.1 | 4.9 | 4.7 | 5.0 | 19.1 | 18.3 | 16.4 | 17.4 |
| Hexanoic acid | 6.5 | 6.6 | 5.3 | 6.8 | 7.5 | 7.2 | 7.4 | 9.1 | 7.3 | 7.9 | 7.2 | 7.0 | 12.2 | 14.3 | 11.4 | 11.3 |
| i-Butyric acid | 0.9 | 1.4 | 0.5 | 0.5 | 1.0 | 1.8 | 1.6 | 1.5 | 0.9 | 1.1 | 0.6 | 0.6 | 1.8 | 2.1 | 1.2 | 1.1 |
| n-Butyric acid | 1.1 | 1.2 | 0.8 | 1.1 | 2.4 | 2.6 | 1.9 | 2.9 | 1.3 | 1.2 | 0.9 | 1.2 | 0.0 | 0.0 | 0.0 | 0.0 |
| n-Valeric acid | 0.4 | 0.4 | 0.7 | 0.5 | 0.4 | 0.4 | 0.6 | 0.5 | 0.3 | 0.3 | 0.5 | 0.4 | 0.0 | 0.0 | 0.0 | 0.0 |
| Octanoic acid | 9.9 | 10.6 | 9.2 | 10.8 | 9.7 | 8.9 | 9.6 | 11.3 | 12.5 | 12.9 | 13.1 | 12.1 | 34.4 | 33.2 | 31.2 | 31.2 |
| Propionic acid | 0.8 | 0.7 | 1.0 | 1.3 | 8.9 | 10.6 | 16.0 | 12.7 | 0.8 | 0.8 | 1.0 | 0.8 | 0.0 | 0.0 | 0.0 | 0.0 |
| 2-Phenylethyl acetate | 0.5 | 5.4 | 0.4 | 2.1 | 0.3 | 2.7 | 0.3 | 1.3 | 0.8 | 1.9 | 0.8 | 2.2 | 1.1 | 4.2 | 2.2 | 5.4 |
| Diethyl succinate | 1.5 | 1.7 | 1.6 | 1.5 | 1.2 | 1.4 | 1.2 | 1.1 | 1.3 | 1.3 | 1.1 | 1.1 | 2.4 | 1.9 | 0.5 | 0.3 |
| Ethyl acetate | 68.5 | 724.2 | 93.0 | 607.0 | 35.9 | 142.2 | 32.0 | 182.1 | 133.5 | 446.0 | 208.1 | 868.6 | 589.4 | 1,792.6 | 723.2 | 2,668.8 |
| Ethyl butyrate | 0.6 | 0.5 | 0.5 | 0.6 | 0.6 | 0.5 | 0.6 | 0.5 | 0.6 | 0.6 | 0.5 | 0.2 | 2.4 | 2.0 | 2.1 | 1.3 |
| Ethyl caprate | 1.7 | 1.6 | 1.7 | 1.8 | 2.0 | 1.9 | 2.3 | 2.2 | 2.2 | 2.3 | 2.3 | 1.9 | 10.2 | 10.2 | 11.2 | 13.5 |
| Ethyl caproate | 1.6 | 2.2 | 1.4 | 1.9 | 12.3 | 11.7 | 10.1 | 14.1 | 1.4 | 1.7 | 1.6 | 1.9 | 10.2 | 10.1 | 11.0 | 11.2 |
| Ethyl caprylate | 1.9 | 1.9 | 1.9 | 2.1 | 2.7 | 2.4 | 2.7 | 3.1 | 2.4 | 2.4 | 2.1 | 2.2 | 10.6 | 10.2 | 11.3 | 10.5 |
| Ethyl lactate | 1.3 | 1.6 | 1.2 | 1.4 | 6.9 | 6.8 | 8.4 | 7.4 | 1.6 | 1.5 | 1.6 | 1.4 | 33.9 | 27.5 | 10.9 | 8.1 |
| Hexyl acetate | 2.4 | 5.0 | 2.9 | 4.6 | 0.5 | 1.0 | 0.6 | 0.9 | 2.3 | 3.9 | 2.9 | 4.1 | 0.9 | 1.3 | 1.2 | 1.7 |
| Iso-amyl acetate | 5.3 | 65.1 | 8.6 | 53.5 | 3.7 | 29.2 | 6.0 | 32.3 | 9.2 | 35.4 | 13.1 | 45.6 | 22.2 | 81.5 | 39.2 | 140.3 |
| 2-Phenylethyl alcohol | 13.9 | 10.6 | 7.9 | 6.0 | 15.2 | 15.0 | 9.7 | 8.0 | 9.4 | 7.6 | 8.1 | 5.4 | 6.3 | 7.4 | 5.3 | 5.4 |
| Hexanol | 1.7 | 0.4 | 1.4 | 0.5 | 1.8 | 0.8 | 1.7 | 0.9 | 1.7 | 0.8 | 1.3 | 0.5 | 11.5 | 6.7 | 9.7 | 5.8 |
| Iso-amyl alcohol | 139.0 | 101.2 | 119.5 | 73.2 | 141.9 | 125.7 | 129.5 | 86.0 | 135.0 | 105.0 | 131.0 | 73.2 | 820.1 | 621.7 | 778.7 | 474.8 |
| Iso-butanol | 25.9 | 32.0 | 13.2 | 12.5 | 26.9 | 34.1 | 14.1 | 13.3 | 24.6 | 22.7 | 16.1 | 13.9 | 151.8 | 128.2 | 91.9 | 77.6 |
| Methanol | 325.0 | 304.7 | 351.0 | 331.5 | 490.1 | 485.1 | 521.0 | 513.3 | 32.3 | 30.0 | 47.8 | 36.5 | 0.0 | 0.0 | 0.0 | 0.0 |
| n-Butanol | 0.4 | 0.3 | 0.8 | 0.5 | 0.4 | 0.3 | 0.8 | 0.4 | 0.6 | 0.5 | 1.3 | 0.6 | 4.6 | 3.3 | 9.0 | 4.4 |
| Propanol | 19.1 | 17.2 | 55.1 | 41.3 | 22.0 | 22.2 | 64.1 | 49.8 | 28.7 | 27.8 | 58.9 | 44.6 | 247.9 | 225.7 | 414.4 | 312.4 |
| Total esters | 82.5 | 805.9 | 110.1 | 673.4 | 58.0 | 191.5 | 54.6 | 236.5 | 152.4 | 493.2 | 242.1 | 938.4 | 647.0 | 1,912.1 | 801.4 | 2,852.6 |
| Total higher alcohols | 525.0 | 466.4 | 548.9 | 465.5 | 698.3 | 683.3 | 740.9 | 671.8 | 232.3 | 194.4 | 265.1 | 176.4 | 1,242.1 | 993.0 | 1,308.4 | 880.3 |