Abstract
The main goal of the study was to evaluate the phenolic composition of red wines from grapes cultivated in a tropical of altitud region at 1,100 m, in the Northeast of Brazil, called Chapada Diamantina, in Morro do Chapeu city. The region is located in Bahia Estate at 11∘ 33′ 11′′ S and 41∘ 09′ 27′′ W. Vineyard was planted in 2011 in randomized blocks, spaced 2.5 m between rows and 1 m between plants. Vines were grafted onto Paulsen 1103 rootstock and irrigated by drip. Pinot Noir, Cabernet Franc, Malbec and Cabernet Sauvignon (Vitis vinifera L .) cultivars were vinified separately, in the Laboratory of Enology at Embrapa in Petrolina, Pernambuco Estate, Brazil. Means evaluated for color intensity (420 nm + 520 nm + 620 nm), total anthocyanins (by different pH), total polyphenol index (at 280 nm), total phenolics (Folin-Ciocalteau) and antioxidante capacity (DPPH) were compared by Tukey testa t 5% probability. Wines showed different phenolic composition, and can be used to elaborate different quality wines.
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