Table 1.
Berry and juice quality attributes of the interspecific hybrid grape Frontenac, Maréchal Foch, Marquette, Sabrevois, and St. Croix harvested in the province of Québec (Canada), during the season 2012, and basic chemical composition of the produced wines.
| Grape Variety | Berry | Juice | Wine | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Fresh Weight (g/berry) | Skin Proportion (% w/w FW) | Juice Yield (% w/w FW) | Total Soluble Solids (°Brix) | Titratable Acidity (g/L Tartaric Acid eq.) | pH | Yeast Assimiliable Nitrogen (mg/L) | Alcohol Content (% v/v) | Titratable Acidity (g/L Tartaric Acid eq.) | pH | Glycerol (g/L) | Volatile Acidity (mg/L Acetic Acid eq.) | |
| Frontenac | 1.25 a 1 | 12.0 a | 82.3 b | 23.8 b | 17.5 b | 3.10 a | 266 b | 13.4 c | 8.58 b | 3.42 a | 1.94 a | 0.47 a |
| Maréchal Foch | 1.23 a | 18.4 b | 75.7 a | 21.6 ab | 10.3 a | 3.18 a | 108 a | 12.3 bc | 5.90 a | 3.74 ab | 1.85 a | 0.54 a |
| Marquette | 1.17a | 14.7 ab | 78.6 ab | 23.7 b | 13.1 ab | 3.09 a | 210 ab | 13.2 c | 5.71 a | 3.89 b | 1.94 a | 0.52 a |
| Sabrevois | 1.81 b | 14.0 ab | 79.4 ab | 18.6 a | 13.4 ab | 3.16 a | 221 ab | 9.90 a | 6.11 a | 3.69 ab | 1.98 a | 0.62 a |
| St. Croix | 1.82 b | 16.4 b | 78.1 ab | 19.4 a | 9.0 a | 3.21 a | 129 a | 10.9 ab | 5.73 a | 3.86 b | 1.80 a | 0.50 a |
1 Values listed are the mean of six to eight replicates per grape variety. Values on the same column followed by a different letter are significantly different according to Tukey’s least significant difference test (p ≤ 0.05).