Contribution of yeast and base wine supplementation to sparkling wine composition

Marti-Raga, Maria; Martin, Valentina; Gil, Mariona; Sancho, Marta; Zamora, Fernando; Mas, Albert; Beltran, Gemma

Abstract

BACKGROUND: The differential characteristic of sparkling wine is the formation of foam, which is dependent, among other factors, on yeast autolysis, aging and oenological practices. In this study, we analyzed the effects of yeast strain, nutrient supplementation to the base wine and aging process on the sparkling wine composition and its foamability. RESULTS: We determined that the addition of inorganic nitrogen promoted nitrogen liberation to the extracellular medium, while the addition of inactive dry yeast to the base wine caused an increase in the polysaccharide concentration and foaming properties of the sparkling wine. The use of synthetic and natural base wines allowed us to discriminate that the differences in high-molecular-weight polysaccharides and oligosaccharides could be attributed to the yeast cells and that the higher nitrogen content in the natural wine could be due to external proteolysis. CONCLUSION: The practices of nitrogen addition and supplementation of inactive dry yeast could modulate the main characteristics of the sparkling wine and be a critical element for the design of this kind of wine. (C) 2016 Society of Chemical Industry

Más información

Título según WOS: ID WOS:000387351200013 Not found in local WOS DB
Título de la Revista: JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
Volumen: 96
Número: 15
Editorial: Wiley
Fecha de publicación: 2016
Página de inicio: 4962
Página final: 4972
DOI:

10.1002/jsfa.7905

Notas: ISI