1. Laboratory
for Flavor Analysis and Enology. Aragón Institute of Engineering
Research (I3A). Department of Analytical Chemistry, Faculty of Sciences, University of Zaragoza, 50009 Zaragoza, Spain
2. Instituto
de Ciencias de la Vid y el Vino (CSIC, UR, GR), Department of Chemistry, Universidad of La Rioja, 260026 Logroño, La Rioja, Spain