1. Department of Chemistry Faculty of Science Gebze Technical University 41400 Gebze Kocaeli (Turkey
2. Department of Chemical Engineering University College London London WC1E 7JE UK
3. University of Alberta Department of Chemistry 116 St. and 85 Ave. Edmonton Alberta T6G 2R3 Canada
4. Technische Universität Berlin Department of Food Chemistry and Toxicology Gustav-Meyer-Allee 25 13355 Berlin Germany