1. Division of Food Chemistry and Toxicology, Department of Chemistry, University of Kaiserslautern, Erwin-Schroedinger-Str. 52, D-67663 Kaiserslautern, Germany; Department of Nutritional Toxicology, Institute for Nutrition, Friedrich-Schiller-University, Dornburger Str. 24, D-07743 Jena, Germany; Geisenheim Research Center, Section of Wine Analysis and Beverage Research, Ruedesheimer Str. 28, D-65366 Geisenheim, Germany; and Department of Food Chemistry, University of Wuerzburg, Am Hubland, D-97074...