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. Black Forest National Park, Schwarzwaldhochstrasse 2, 77889 Seebach, Germany
4. Fraunhofer Institute for Molecular Biology and Applied Ecology, Ohlebergsweg 12, 35392 Giessen, Germany