Biodiesel is defined as a mono alkyl ester of vegetable oil or animal fat produced when organically derived oil such as vegetable oil or animal fat chemically reacts with an alcohol in the presence of a catalyst.
African Power Initiative (API), a renewable energy company produces biodiesel from non-food oil seeds, which are castor (Ricinus communis), jatropha (Jatropha curcas) and candlenut (Aleurites moluccana). Biodiesel is simple to use, biodegradable and essentially free of sulfur and aromatics. It can be used in compression-ignition (diesel) engines with little or no modifications. It can also be used in incinerators and diesel generators.