1. Faculty of Bioscience Engineering, Department of Food Safety and Food Quality, Research group Food Chemistry and Human Nutrition - nutriFOODchem, Ghent University, Coupure links 653, 9000 Ghent, Belgium
2. Department of Home economics and Human nutrition, Open University of Tanzania (OUT), P.O. Box 23409, Dar es Salaam, Tanzania
3. Nelson Mandela African Institute of Science and Technology, P.O. Box 447, Arusha, Tanzania
4. Department of Public Health, Nutrition and Child Health Unit, Prince Leopold Institute of Tropical Medicine, Nationalestraat 155, 2000 Antwerp, Belgium