1. Irstea, UR TERE, 17 avenue de Cucillé, CS 64427,
F-35044 Rennes,
France
2. Université européenne de Bretagne, 5 Boulevard Laënnec,
35000 Rennes, France
3. Unilever R&D, Olivier van Noortlaan 120, P.O. Box 3130AC, Vlaardingen, The Netherlands
4. Laboratory of Biophysics, Wageningen University, Dreijenlaan 3, 6703HA, Wageningen,
The Netherlands