1. Departement de Biochimie et Sciences des Aliments, UFR Biosciences; Université de Cocody; 22 BP 582 Abidjan 22 Côte d'Ivoire
2. Department of Food and Animal Sciences; Alabama A&M University; Normal AL 35762 USA
3. Quality and Safety Assessment Unit; USDA ARS SAA; Athens GA 30605 USA
4. School of Nutrition and Food Sciences; Louisiana State University Agricultural Center; Baton Rouge LA 70803 USA
5. Department of Home Economics Education, College of Education; Korea University; Seoul 136-701 South Korea