Title
Influence of sequential fermentation with Torulaspora delbrueckii and Saccharomyces cerevisiae on wine quality
Date Issued
01 January 2014
Access level
open access
Resource Type
journal article
Author(s)
Loira I.
Bañuelos M.A.
Morata A.
Tesfaye W.
Uthurry C.
Villa A.
Cintora I.
Suárez-Lepe J.A.
Universidad Politécnica de Madrid
Publisher(s)
Academic Press
Abstract
Torulaspora delbrueckii is a non. -Saccharomyces yeast with interesting metabolic and physiological properties of potential use in oenology. This work examines the fermentative behaviour of five strains of T. delbrueckii in sequential fermentations with Saccharomyces cerevisiae, analysing the formation of aromatic compounds, polyalcohols and pigments. The fermentative power of these five strains ranged between 7.6 and 9.0% v/v ethanol; the associated volatile acidity was 0.2-0.7 g/l acetic acid. The production of glycerol was inferior to that of S. cerevisiae alone. The mean 2,3-butanediol concentration reached in single-culture S. cerevisiae fermentations was 73% higher than in the five sequential T. delbrueckii/S. cerevisiae fermentations. However, these fermentations produced larger quantities of diacetyl, ethyl lactate and 2-phenylethyl acetate than single-culture S. cerevisiae fermentation. 3-ethoxy propanol was produced only in the sequential fermentations. The five sequential fermentations produced smaller quantities of vitisin A and B than single-culture S. cerevisiae fermentation. In tests performed prior to the addition of the S. cerevisiae in the sequential fermentations, none of the T. delbrueckii strains showed any extracellular hydroxycinnamate decarboxylase activity. They therefore produced no vinyl phenolic pyranoanthocyanins. © 2014 Elsevier Ltd.
Start page
915
End page
922
Volume
59
Issue
2P1
Language
English
OCDE Knowledge area
Bioquímica, Biología molecular Alimentos y bebidas
Scopus EID
2-s2.0-84907883339
Source
LWT
ISSN of the container
00236438
Sponsor(s)
This work was funded by the Ministerio de Economía y Competitividad ( AGL2013-40503-R ) and the Ministerio de Ciencia e Innovación ( AGL2007-61075 ). The authors thank S. Somolinos, J. A. Sánchez (Dept. Tecnología de Alimentos) and P. Santos (Dept. Biotecnología) for excellent technical assistance.
Sources of information: Directorio de Producción Científica Scopus