Fuel ethanol, as an important alternative vehicle fuel, has been
promoted in many countries to alleviate the concerns over energy
security and greenhouse gas emissions (GHG) The bioethanol is
currently dominated by first generation products derived from corn
grain and sugarcane syrup in the world. However, due to food
versus fuel problem, there has been global resistance to the
expansion of first generation ethanol production. As a result, many
efforts have been made to develop second generation bioethanol
using lignocellulosic biomass, which has been identified as promising
feedstock for sustainable biofuel production Lignocellulosic
biomass includes agricultural and forestry residues (e.g., sugar
cane bagasse, woodchips, rice rusk), herbaceous plants, etc