With the increasing gulf between the energy requirement and its limited supply create immense pressure on the conventional resources like fossil fuels, and the increasing green house gas emission is responsible for global warming, alongwith it number of people around the world are unable to access energy which is thier basic right in the present twenty-second century world. To solve all this issue the only solution is bioenergy i.e. biofuel. Bioethanol is a biofuel derived from biomass. Initially it is produced form food grains and starch based feedstock which make it commercially unviable...