Changes in amino acids during the alcoholic fermentation of grape juice at different temperatures.
- Lopez, R. 1
- Santamaria, P. 1
- Gutierrez, A.R. 3
- Iñiguez, M. 2
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1
Servicio de Investigación y Desarrollo Tecnológico Agroalimentario de La Rioja
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Servicio de Investigación y Desarrollo Tecnológico Agroalimentario de La Rioja
Logroño, España
- 2 Estac. Enológica de Haro, La Rioja, Spain
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3
Universidad de La Rioja
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ISSN: 0240-8813
Ano de publicación: 1996
Volume: 16
Número: 5
Páxinas: 529-535
Tipo: Artigo
Outras publicacións en: Sciences des Aliments
Resumo
The effect of fermentation temperature of grape juice on the utilization of assimilable nitrogen was investigated. Temperature influenced amino acid consumption by yeasts during fermentation. The most abundant amino acids in the juice, except proline, were utilized rapidly from the beginning of fermentation, and more rapidly at high than at low temperatures. Higher postfermentation levels of most amino acids occurred at low temperatures than at high temperatures. The weaker assimilation of amino acids at low fermentation temperatures was consistent with a slow rate of fermentation.