1. Institute of Food Chemistry and Food Biotechnology, Justus Liebig University Giessen, Heinrich-Buff-Ring 17, Giessen 35392, Germany
2. Institute of Biochemistry, Philips University Marburg, Hans-Meerwein-Str. 4, Marburg 35032, Germany
3. Fraunhofer Institute for Molecular Biology and Applied Ecology, Ohlebergsweg 12, Giessen 35392, Germany