Presentation of German Alumni Food Network (GAFooN) Autumn-school 2009:"Post-harvest technology and renewable enegy" assessment of energy efficiency in industrial freezing equipment by using heat flux sensors biodiesel production from CPO using immobilized lipase of Pseudomonas cepacia sun drying for preservation of some crops in Sudan Jimma university towards sustainable development metallic silo: a simple technology for small farmers edible coating for fruits and vegetables factors influencing postharvest life of ornamentals fuel cells, gasifier, Fischer-tropsch synthesis and energy park history of the development of wood chipper technology at the Institute of Agricutural Engineering effect of radio frequency (RF) heat treatment on the post-harvest quality of rice using renewal energy from radio frequency (RF) heat treatment combined with conventional drying in green malt Workshop 2007: "Drying methods and post-harvest technologies" efficient use of maize dryers in times of high energy prices application of appropriate technology on onion for quality improvement and product diversification application of far infra red (FIR) for agricultural product study on post harvest handling in transportation of mango post harvest handling and research on microwave application thermal treatment of drinking water-comparison of laboratory and tsunami barrack conditions