1. Department of Chemistry, Division of Food Chemistry and Toxicology, Technische Universität Kaiserslautern, Kaiserslautern, Germany;
2. Medical Institute, Hochgewanne 19, Grünstadt, Germany;
3. Department of Food Chemistry and Toxicology, Universität Wien, Vienna, Austria;
4. Department of Microbiology and Ecosystem Science, Centre for Microbiology and Environmental Systems Science, Universität Wien, Vienna, Austria;
5. Research Group on Community Nutrition & Oxidative Stress, University of the Balearic Islands & CIBEROBN, Palma de Mallorca, Spain