**Application of Gel Electrophoresis Techniques to the Study of Wine Yeast and to Improve Winemaking**

María Esther Rodríguez, Laureana Rebordinos, Eugenia Muñoz-Bernal, Francisco Javier Fernández-Acero and Jesús Manuel Cantoral *Microbiology Laboratory, Faculty of Marine and Environmental Sciences University of Cadiz, Puerto Real Spain* 
