Table 2.
Concentration (µg/L) of glycosidically-bound compounds in young wine samples. Mean, standard deviation (SD) and ANOVA.
| Control | Fruttaio | On-Vine | |||||
|---|---|---|---|---|---|---|---|
| Compounds | Mean | SD | Mean | SD | Mean | SD | p-Value |
| Alcohols | |||||||
| Phenylethyl alcohol | 284.9 b | ±22.5 | 191.7 a | ±11.0 | 282.0 b | ±47.8 | 0.017 |
| C6 alcohols | |||||||
| 1-Hexanol | 203.8 b | ±15.8 | 216.5 b | ±29.8 | 159.6 a | ±17.5 | 0.043 |
| trans-3-Hexen-1-ol | 1.80 a | ±0.28 | 3.27 b | ±0.41 | 2.03 a | ±0.29 | 0.003 |
| cis-3-Hexen-1-ol | 25.4 b | ±2.4 | 12.2 a | ±1.6 | 11.0 a | ±1.6 | 0.000 |
| Terpenes | |||||||
| cis-Linalooloxide | 1.93 a | ±0.71 | 2.15 a | ±0.53 | 2.06 a | ±0.64 | 0.909 |
| trans-Linalooloxide | 2.17 a | ±0.72 | 2.74 a | ±0.88 | 2.49 a | ±0.61 | 0.666 |
| Linalool | 5.71 a | ±1.40 | 6.82 a | ±0.82 | 6.91 a | ±0.94 | 0.378 |
| Terpinen-4-ol | 0.068 a | ±0.020 | 0.070 a | ±0.024 | 0.069 a | ±0.032 | 0.999 |
| α-Terpineol | 2.00 a | ±0.52 | 2.19 a | ±0.02 | 2.42 a | ±0.20 | 0.343 |
| β-Citronellol | 0.163 a | ±0.048 | 0.747 b | ±0.051 | 0.130 a | ±0.030 | 0.051 |
| Nerol | 15.1 a | ±0.6 | 16.4 a | ±1.8 | 11.3 a | ±4.0 | 0.120 |
| Geraniol | 20.7 a | ±1.7 | 24.1 b | ±1.4 | 19.0 a | ±1.1 | 0.013 |
| Norisoprenoids | |||||||
| 3-oxo-α-Ionol | 5.44 b | ±0.43 | 2.80 a | ±1.41 | 4.40 ab | ±1.56 | 0.102 |
| α-Ionol | 0.035 a | ±0.017 | 0.015 a | ±0.010 | 0.030 a | ±0.018 | 0.329 |
| Benzenoids | |||||||
| Vanillin | 0.175 a | ±0.095 | 9.41 c | ±1.36 | 1.60 b | ±0.22 | 0.001 |
| Methyl vanillate | 4.01 a | ±0.21 | 5.17 b | ±0.29 | 4.92 b | ±0.02 | 0.001 |
| Ethyl vanillate | 0.365 a | ±0.129 | 0.737 b | ±0.209 | 0.747 b | ±0.188 | 0.065 |
| Benzyl Alcohol | 303.7 b | ±58.2 | 112.4 a | ±10.7 | 163.9 a | ±21.5 | 0.002 |
Values in the same row with different letters indicate statistically significant differences (p < 0.05). <LOQ: Value below the limit of quantification.