Advanced biofuels or second generation biofuels are fuels that can be processed from numerous types of biomass called lignocellulosic biomass. First generation biofuels are processed from the sugars and vegetable oils formed in arable crops, which can be smoothly extracted applying conventional technology. In comparison, advanced biofuels are made from lignocellulose biomass or woody crops, agricultural residues or waste, which makes it tougher to extract the requisite fuel. Advanced biofuel technologies have been devised because first generation biofuels have few major limitations. First generation biofuel can be produced feasibly but restricted in most cases: there is a limit above which they cannot yield enough biofuel without forbidding food supplies and biodiversity.