1. National Food Reserve Agency (NFRA), P.O.Box 1050, Dodoma, Tanzania
2. Department of Health Science and Technology, Mbeya University of Science and Technology (MUST), P.O.Box 131, Mbeya, Tanzania
3. The University of Dodoma, P.O.Box 259, Dodoma, Tanzania
4. Postharvest Department, Tanzania Agricultural Research Institute (TARI)-Makutupora, P.O.Box 1676, Dodoma, Tanzania