1Department of Crop Science, Makerere University Kampala, P. O. Box 7062, Kampala, Uganda.
2National Crops Resources Research Institute (NaCRRI), P. O. Box 7084, Kampala Uganda.
3Purdue University, Department of Food Science and Whistler Center for Carbohydrate Research, West Lafayette, IN 47907-2009, USA.
Email: [email protected]