1. Department of Food Commodity SciencesPoznan University of Economics and Businessal. Niepodległości 10Poznań61‐875Poland
2. Principal Consulting ScientistFeal Stability Consultants112, 13 St.LethbridgeT1K3M4AlbertaCanada
3. Department of Chemistry and BiochemistryUniversity of LethbridgeLethbridgeT1K3M4AlbertaCanada