influência da altitude na qualidade das uvas 'chardonnay' e 'pinot noir' em minas gerais altitude influence on the quality of 'chardonnay' and 'pinot noir' grapes in the state of minas gerais

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ID: 204429
2010
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Abstract
No Sul e Sudeste brasileiros, o excesso de chuvas durante o período de maturação afeta negativamente a qualidade dos vinhos tintos. Por outro lado, estas regiões possuem potencial para a elaboração de espumantes, uma vez que, para a elaboração desta bebida, a uva é colhida antes de completar o amadurecimento. No Estado de Minas Gerais, as condições de verão chuvoso estão presentes em todas as regiões de potencial vitícola, e a variação de altitude entre elas pode exercer influência na composição das uvas. Desta forma, este estudo buscou avaliar o potencial de maturação de uvas 'Chardonnay' e 'Pinot Noir' destinadas à elaboração de espumantes em dois locais de Minas Gerais: Cordislândia (873m) e Caldas (1.150m). As plantas foram enxertadas sobre 1.103 Paulsen e conduzidas em espaldeira. Foram avaliados os teores de sólidos solúveis totais, acidez total, ácidos málico e tartárico, e pH do mosto, tamanho e massa das bagas, compostos fenólicos nas cascas e sementes, antocianinas na casca e açúcares solúveis nas bagas, em duas safras consecutivas. As bagas apresentaram maior tamanho e massa quando cultivadas em Caldas. As uvas colhidas em Cordislândia apresentaram maior grau de maturação, sendo observados maior pH, maiores teores de glicose e frutose, e quantidade inferior de acidez e fenólicos totais nas sementes. Os maiores teores de ácido málico presentes nas uvas provenientes de Caldas sugerem que esta região pode ser mais indicada à produção de uvas para elaboração de vinhos espumantes.
In the southern and southeastern of Brazil, the excessive rainfall during the maturation period negatively affects the quality of red wines. On the other hand, these regions have great potential for the development of sparklings since that for the elaboration of this drink, the grape is harvested before complete its maturation. In the state of Minas Gerais, the conditions of rainy summer season are present in all regions of grape production potential, and the altitude variation between them influence on the grapes composition. Therefore, this study sought to evaluate the potential for maturing of the grapes 'Chardonnay' and 'Pinot Noir' which are designated for the preparation of sparklings in two locations of Minas Gerais: Cordislândia (873m) and Caldas (1150m). The plants were grafted on 1103 Paulsen and conducted in trellis. It was evaluated the contents of total soluble solids, total acidity, malic and tartaric acid, and pH of the wort, size and mass of the berries, phenolic compounds in the peels and in the seeds, anthocyanins in the peels and soluble sugars in the berries in two seasons in a row. The berries had higher size and mass when grown in Caldas. The grapes harvested in Cordislândia presented a higher maturity degree, and it was observed a higher pH, higher levels of glucose and fructose, and a lower amount of acidity and total phenolic content in the seeds. The highest levels of malic acid present in the grapes of Caldas suggest that this region may be more appropriate for the production of grapes which are used for making sparklings.
Reference Key
regina2010revistainfluncia Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Murillo de Albuquerque Regina;Ezequiel Lopes do Carmo;Anderson Ridolfi Fonseca;Eduardo Purgatto;Tânia Misuzu Shiga;Franco Maria Lajolo;Ana Paula Ribeiro;Renata Vieira da Mota
Journal technocom
Year 2010
DOI
DOI not found
URL
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452010000100018
Keywords
composition vitis vinifera terroir

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