Journal of Horticultural Sciences

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Blending of juices from four white grape varieties viz., Thompson Seedless, Chenin Blanc, Sauvignon Blanc and Italia with three coloured varieties, viz., Shiraz, Ruby Red and Bangalore Blue, was done in 2:1 and 3:1 ratios to assess the effect of blending on wine quality. White varieties blended with Bangalore Blue recorded maximum titratable acidity (1.23%), while those blended with Ruby Red showed the least acidity (0.42%), Alcohol content in the wine ranged from 8.11% (Italia + Ruby Red, 2:1) to 12.04% (Chenin Blanc + Shiraz, 2:1). The range of values for tannin content (0.007% to 0.044 %) and total phenol content (228mg/l to 571mg/l) indicated that white varieties blended with the coloured cv. Shiraz had the lowest content of tannins and total phenols in wine, while, those blended with cv. Ruby Red showed highest content of these in the blended wines. Hence, among different blends, Chenin Blanc, Thompson Seedless, Sauvignon Blanc and Italia blended with the coloured variety Shiraz, in 2:1 ratio, produced good quality wine.

Keywords

Grape, Coloured Varieties, White Varieties, Wine, Blending.
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