1. Institute of Biochemical Physics, Russian Academy of Sciences, Vavilov Street 28, 119991 Moscow GSP-1, Russian Federation, Physics Department, Moscow State University, 117234 Moscow, Russian Federation, Department of Product Technology, NIZO Food Research, P.O. Box 20, 6710 BA Ede, The Netherlands, and Van't Hoff Laboratory, Debye Institute, Utrecht University, The Netherlands