Evaluation of Zygosaccharomyces bailii BCV 08 as a co-starter in wine fermentation for the improvement of ethyl esters production

Publication date: April 2015 Source:Microbiological Research, Volume 173 Author(s): Juliano Garavaglia , Rosana de Cassia de Souza Schneider , Sandra Denise Camargo Mendes , Juliane Elisa Welke , Cláudia Alcaraz Zini , Elina Bastos Caramão , Patrícia Valente Zygosaccharomyces bailii BCV 08, a yeast isolated from red wine barrels in Brazil, was evaluated as co-starter in fermentations with Saccharomyces cerevisiae. Z. bailii BCV 08 was preliminarily shown to produce high levels of esters, and the production was optimized in bench and bioreactor scales using grape must. White wine vinifications were conducted with mixed cultures containing different proportions of Z. bailii BCV 08 and an enological strain of S. cerevisiae. In all trials that contained Z. bailii BCV 08, the production of ethyl esters was enhanced in comparison to the vinification control. Our results clearly show the potential of Z. bailii BCV 08 as a mixed starter with S. cerevisiae in order to increase the aromatic complexity of wine.
Source: Microbiological Research - Category: Infectious Diseases Source Type: research