Volatile and phenolic compounds in white wines produced at Campanha Gaúcha, Brazil

Abstract

The Campanha Gaúcha region has recently (2020) received an Indication of Provenance (‘IP Campanha Gaúcha’) for wines and sparkling wines. Scientific data and research developed during the last decades could provide the necessary information for this first characterization of the area. Nevertheless, there is a lack of detailed data about the composition of Campanha Gaúcha wines. In this study, five Campanha Gaúcha white wines of different grape varieties (Riesling, Gewürztraminer, Semillon, Sauvignon Blanc and Chardonnay) produced in the 2018 vintage were collected directly from the winery and followed analyses of several volatile and phenolic compounds. The 2018 vintage was rated among the best of the 3 preceding decades for this region. The results, originated from this excellent vintage, demonstrate the qualitative potential of the region for the wines elaborated with the grape varieties covered by this study. They are important records for the construction and enlargement of databases for future research and can also provide further scientific basis for more detailed definition of intra-regional and inter-regional differences and similarities regarding the characteristics of Campanha Gaúcha wines.