“…Because of its specificity and sensitivity, one of the most promising PCR techniques in food control is the real-time quantitative PCR (QPCR) (Bleve, Rizzotti, Dellaglio, & Torriani, 2003). In the past we developed several protocols to detect microorganisms in wine (Andorrà et al, 2008;Andorrà, Landi, Mas, Esteve-Zarzoso, & Guillamón, 2010;González, Hierro, Poblet, Mas, & Guillamón, 2006;Hierro, Esteve-Zarzoso, Gonzalez, Mas, & Guillamón, 2006). We now aim to study the interactions among the three main yeast species (S. cerevisiae, H. uvarum and Candida zemplinina) by monitoring pure and mixed cultures inoculated in a synthetic grape must by QPCR.…”