Abstract
The increase in the production, marketing and consumption of grape juices has been constant in recent years. This is directly related to consumers' search for products with proven health benefits, due to their characteristics and nutritional properties. Grape juice produced from Vitis labrusca L. and hybrids thereof is significantly different from those produced from Vitis vinifera L., being the soluble solids content as one of the most relevant parameters. Data collected in real Brazilian production situations demonstrate that the soluble solids content of juice from V. labrusca L. is below the minimum Brix level of 16.0 established at the General Standard for Fruit Juices and Nectars (CXS 247–2005) for a representative portion of the production (around 44%), varying mainly due to the variety, vintage, edaphoclimatic conditions. Therefore, the main objective of this study was to verify the soluble solids profile, expressed in ºBrix (at 20 ºC), in grape musts of Vitis labrusca L. and hybrids thereof, produced in Brazil, from the 2012–2022 harvest. In this sense, experimental musts of the main grapes used in the elaboration of grape juices in Brazil were analyzed, totalling 1624 samples. Modelling these data by a normal distribution, it is observed that 33.8% of the production is in the range of 14–16°Brix, 10% is below 14°Brix and 56.2% is above 16°Brix. However, for some varieties in some years, more than half of the production is in the range between 14° and 16°Brix, which points to the need to re-discuss the 16°Brix limit of CXS 247–2005.
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