Wine production is based on spontaneous fermentations or inoculated must fermentations; in both cases, Saccharomyces plays a major role. Spontaneous grape juice fermentations sometimes become stuck or sluggish. This lack of reproducibility and predictability has favoured the use of active dry yeast, generally strains of Saccharomyces cerevisiae. However, other non-Saccharomyces species are also responsible for alcoholic fermentation and can contribute to the sensory characteristics of the final product. Non-Saccharomyces yeasts have been shown to have a positive impact on wine organoleptic characteristics ( Ciani et al., 2010). Nevertheless, selected S. cerevisiae strains predominate in starter cultures to ensure rapid and reliable grape juice fermentation and, thus, consistent and predictable wine quality. However, there has been increasing recognition that wines made with Saccharomyces starter cultures are less complex, producing standardised wines ( Rainieri and Pretorius, 2000; Mannazzu et al., 2002).