1H NMR and LC-MS-based metabolomic approach for evaluation of the seasonality and viticultural practices in wines from São Francisco River Valley, a Brazilian semi-arid region.

摘要: Abstract Sao Francisco River Valley (SFRV) is a wine-producing semi-arid region in Brazil. Therefore, we used 1H NMR and UPLC-MS-based metabolomic approach coupled to chemometrics evaluate the variability Chenin Blanc Syrah wines for two harvest seasons, vine training system six rootstocks. Overall, secondary metabolites were influenced by three factors studied, whereas primary only seasonality. made December presented higher content of an unidentified carbohydrate. In wines, glycerol, tartaric acid, succinic acid 2,3-butanediol greater December, while proline lactic more abundant July. For system, caffeic derivatives increased produced from espalier. Lyre phenolic compounds, organic acids apocarotenoids. The effect rootstocks was less pronounced, affecting basically derivatives. Thus, expect that our results may assist winemakers improve SFRV wine quality.