2008
DOI: 10.1590/s0103-84782008000800039
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Efeito do ácido tartárico nos valores de potássio, acidez titulável e pH durante a vinificação de uvas Cabernet Sauvignon

Abstract: 1,98, 0.61, 3,68; from 1gL -1 :1,72, 0.70 e 3,63; from 2gL -1 :1,41, 0,73 e 3,50. Values found in the skins and lees with the same treatments were, respectively: 24,91 and 69.30, 21,85 and 75.11, 16,20 and 85.38g kg -1 of the Dry Matter. The effect of tartaric acid addition was noted mainly in the lees (69.3, 75.11 and 85.38)

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Cited by 10 publications
(9 citation statements)
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References 8 publications
(7 reference statements)
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“…In grapes, it was observed that an increase of pH values is associated with high potassium content, resulting in wines with high pH (>3.7), on the other hand, it was also observed that pH is reduced during stabilization (Fogaça et al 2007). High levels of pH can decrease the intensity of the color and the stability of wine (Daudt and Fogaça 2008).…”
Section: Physicochemical Analysis Of Blueberry Winesmentioning
confidence: 99%
“…In grapes, it was observed that an increase of pH values is associated with high potassium content, resulting in wines with high pH (>3.7), on the other hand, it was also observed that pH is reduced during stabilization (Fogaça et al 2007). High levels of pH can decrease the intensity of the color and the stability of wine (Daudt and Fogaça 2008).…”
Section: Physicochemical Analysis Of Blueberry Winesmentioning
confidence: 99%
“…O pH depende, principalmente, do tipo e concentração dos ácidos orgânicos, além da concentração de cátions, especialmente de potássio (K + ), que precipitam o ácido tartárico na forma de sal insolúvel de bitartarato de potássio. [8][9][10] Dentre as várias técnicas usadas na identificação e quantificação dos ácidos orgânicos em vinhos, podemos citar espectrofotometria, eletroforese capilar e cromatografia.2,4,6 Entretanto, a cromatografia líquida de alta eficiência (CLAE) é a mais usada na identificação individual destes compostos, devido a sua simplicidade, precisão, facilidade de preparação das amostras, envolvendo apenas etapas de diluição e filtração, e menor custo da análise. 4,7,8 Os métodos disponíveis na literatura utilizam para esta determinação comprimentos de onda entre 210 e 212 nm, coluna de sílica C-18, fase móvel menos corrosiva possível, com pH máximo de 2,5, e injeção de amostras de vinho diluídas e filtradas.…”
unclassified
“…O pH depende, principalmente, do tipo e concentração dos ácidos orgânicos, além da concentração de cátions, especialmente de potássio (K + ), que precipitam o ácido tartárico na forma de sal insolúvel de bitartarato de potássio. [8][9][10] Dentre as várias técnicas usadas na identificação e quantificação dos ácidos orgânicos em vinhos, podemos citar espectrofotometria, eletroforese capilar e cromatografia.…”
unclassified
“…Although 'Cabernet Sauvignon' is not one of the richest grapes in anthocyanins, in comparison with grapes such as ' Alicante Bouchet' or 'Tannat', in several wine regions near the study area it was able to produce wines with good coloration (Pötter et al, 2010;Jacobs et al, 2016). Complementary oenological practices are usually associated with the use of pectolytic enzymes, thermovinification, the use of modular temperatures, fermentative pre-maceration at low temperatures (Zocche et al, 2016), correction of acidity, the use of oenological tannins, micro-oxygenation, other resources in the search for greater extraction of color and structure components, and stabilization during wine maturation process (Fernández-Zurbano et al, 1999;Carvalho & Curvelo-Garcia, 2000;Pérez-Lamela et al, 2007;Daudt & Fogaça, 2008;Chinnici et al, 2009;Pötter et al, 2010).…”
Section: Resultsmentioning
confidence: 99%