Data/hora: 13/06/2024 10:01:00

Provedor de dados: | 70
País: | Brazil
Título: | Adaptation of "Niagara Rosada" grape must to winemaking by partial cluster dehydration
Autores: | Santiago,Wesley E.; Teruel,Bárbara J.; Oliveira,Rafael A. De; Silva,João C. T. R. Da.
Data: | 2014-02-01
Ano: | 2014
Palavras-chave: | Chemical Composition; Must; Drying.
Resumo: | This study aimed to verify the influence of partial dehydration of "Niagara Rosada" grape clusters in physicochemical quality of the pre- fermentation must. In Brazil, during the winemaking process it is common to need to adjust the grape must when the physicochemical characteristics of the raw material are insufficient to produce wines in accordance with the Brazilian legislation for classification of beverages, which establishes the minimum alcohol content of 8.6 % for the beverage to be considered wine. Therefore, given that the reduction in the water content of grape berries allows the concentration of chemical compounds present in its composition, especially the concentration of total soluble solids, we proceeded with the treatments that were formed by the combination of two temperatures (T1-37.1ºC and T2-22.9 ºC) two air speeds (S1: 1.79 m s-1 and S2: 3.21 m s-1) and a control (T0) that has not gone through the dehydration treatment. Analysis of pH, Total Titratable Acidity (TTA) were performed in mEq L-1, Total Soluble Solids (TSS) in ºBrix, water content on a dry basis and Concentration of Phenolic Compounds (CPC) in mg of gallic acid per 100g of must. The average comparison test identified statistically significant modifications for the adaptation of must for winemaking purposes, having the treatment with 22.9 ºC and air speed of 1.79 m s-1 shown the largest increase in the concentration of total soluble solids, followed by the second best result for concentration of phenolic compounds.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162014000100010
Editor: | Associação Brasileira de Engenharia Agrícola
Relação: | 10.1590/S0100-69162014000100010
Formato: | text/html
Fonte: | Engenharia Agrícola  v.34 n.1 2014
Fonte: | info:eu-repo/semantics/openAccess