1. Department of Physics, St. Francis Xavier University, Antigonish, Nova Scotia B2G 2W5, Canada
2. Physical Chemistry of Biosystems, Institute of Physical Chemistry, Heidelberg University, INF253, D69120 Heidelberg, Germany
3. Department of Chemistry, Faculty of Science, Saitama University, 255 Shimo-okubo, Sakura-ku, Saitama 338-8570
4. Guelph-Waterloo Physics Institute, Centre for Food and Soft Materials Science, Department of Food Science, University of Guelph, 50 Stone Road East, Guelph, Ontario N1G 2W1, Canada
5. Department of Food Science and Human Nutrition, Iowa State University, Ames, IA 50011, United States
6. Institute for Integrated Cell-Material Science (WPI iCeMS), Kyoto University, Kyoto 606-8501