1. Institute of Food Chemistry and Food Biotechnology, Justus Liebig University Giessen, Heinrich-Buff-Ring 17, 35392 Giessen, Germany
2. Symrise AG, Muehlenfeldstrasse 1, 37603 Holzminden, Germany
3. Institute of Clinical Chemistry and Laboratory Medicine, Diagnostic Center, Section Mass Spectrometry & Proteomics, University Medical Center Hamburg-Eppendorf, Campus Research, N27, Martinistr. 52, 20246 Hamburg, Germany
4. Institute of Biochemistry and Molecular Biology, University of Hamburg, Martin-Luther-King-Platz 6, 20146 Hamburg, Germany
5. Fraunhofer Institute for Molecular Biology and Applied Ecology, Ohlebergsweg 12, 35394 Giessen, Germany