Ecology of Saccharomyces cerevisiae in Spontaneous Fermentations at a Rías Baixas Appelation Controlé Winery

M. Vilanova 1, 4, C. Martínez 1, C. Sieiro 2, I. Massneuf 3 and D. Dubourdieu 3
1 Misión Biológica de Galicia (CSIC), Apdo. de Correos 28, 38080 Pontevedra (Spain).
2 Area de Microbiología, Facultad de Ciencias, Universidad de Vigo, Lagoas-Marcosende, 35200 Vigo (Spain).
3 Faculté d'Oenologie de Bordeaux, 351 Cours de la Libération, 33400 Talence (France). 4 Corresponding author. E-mail: mvilanova@mbg.cesga.es

J. Inst. Brew. 109(4), 305-308, 2003  |   VIEW ARTICLE

ABSTRACT
PCR techniques and pulse field electrophoresis karyotyping showed wide genetic diversity in Saccharomyces cerevisiae strains isolated from spontaneous fermentations in progress at a wine cellar in the Rías Baixas appelation controlé region (Spain). The karyotyping method showed greater discriminating power than PCR profiling, making it better suited for the detection of genetic diversity in wine strains, and for the monitoring of selected strains in controlled fermentations.

Key words:
Saccharomyces cerevisiae, spontaneous fermentation, polymerase chain reaction, pulse field electrophoresis.

Publication no. G-2003-1229-202  ©2003 The Institute & Guild of Brewing