1. Department of Human Nutrition, St. Francis Xavier University, P.O. Box 5000, Antigonish, Nova Scotia B2G 2W5, Canada
2. Centre for Agrotechnology and Veterinary Sciences, Division of Food Science, Department of Food Chemistry, Polish Academy of Sciences, 10-718 Olsztyn, Poland
3. Department of Biochemistry, Memorial University of Newfoundland, St. John's, Newfoundland A1B 3X9, Canada