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Descripción
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| Ageing on lees involves ageing the wine in contact with yeast cells after fermentation. If combined with the addition of oak chips, it can soften the wood flavour and increase the aromatic complexity of wine. The aim of the present work is to optimise both ageing techniques through selection of an adequate Saccharomyces cerevisiae strain. The study lasted 6 months and content of polysaccharides, anthocyanins, proanthocyanidins, volatile compounds, colour parameters and sensory analysis, were periodically evaluated. Among the strains tested, G37 showed the highest release of polysaccharides (24.4 ± 5.5 mg l-1). Vanillin, syringaldehyde and furfuryl alcohol increased with ageing time in 7VA2 treatment. The wine aged with CTPL14 strain presented fewer monomeric and oligomeric proanthocyanidins (12.4 ± 0.6 and 83.4 ± 8.3 mg l-1, respectively), and showed the lowest astringency and bitterness sensations. Results show an improvement in the sensory profile of the red wine aged with a combination of these two techniques. | |
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Internacional
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Si |
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JCR del ISI
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Si |
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Título de la revista
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Food Chemistry |
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ISSN
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0308-8146 |
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Factor de impacto JCR
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3,655 |
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Información de impacto
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Datos JCR del año 2011 |
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Volumen
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139 |
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DOI
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Número de revista
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Desde la página
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1044 |
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Hasta la página
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1051 |
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Mes
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SIN MES |
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Ranking
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