| Biodiesel is a renewable fuel, highly demanded globally at the beginning of the 21st Century because of depletion of fossil fuel reserve and environmental issues. In this paper, oil yielding tree species were reviewed and seeds of nine tree species were collected to select best seed oil producer and to test the biodiesel. Seed oil was extracted by mechanical, hydraulic and chemical methods and stored at room temperature (25°C) and deep freeze (-20°C). Then, the tree species with highest oil yield was further studied its biodiesel, estimated end use emission as rural household energy and its land suitability. Using hexane solvent, the oil yield was 12 (%, w/w) in Cordia africana to highest 50.2 (%, w/w) in Croton megalocarpus, which was 44.7% in hydraulic... |
