The bioconversion of biomass (corn stalk and straw) into ethanol has been seen as the most promising alternative bio-energy. Solid-state fermentation to produce ethanol by cornstalk is an effective approach to solve the problem. The article discussed different methods to determine the process parameters firstly. Then kinetic models were set up and the Modified Simple Genetic Algorithms was applied to determine the kinetic parameters. At last, the bioprocess was scaled up in two types of bioreact...