Sustainable approaches for biofuels production technologies : from current status to practical implementation Bioprocessing perspective in Bio refineries Integrated lignocellulosic biorefinery Agro residues for biochemicals and biofuels production via biorefinery approach Green Nanotechnology for Biofuel Production Biofuels from protein rich lignocellulosic biomass: new approach Biofuels from Microorganisms Strategies to improve Solid State Fermentation Second generation bioethanol production: the state of art Bioethanol Production Using Saccharomyces cerevisiae Immobilized in Calcium Alginate Magnetite Beads and Application of Response Surface Methodology to Optimize Bioethanol Yield Nanotechnology in Biofuels production: A novel approach for processing & production of Bioenergy This volume focuses on technological advances relevant to establishing biofuels as a viable alternative to fossil fuels by overcoming current limitations. The progressive depletion of fossil fuels due to their large scale utilization and their environmental consequences notably global warming increase the need for sustainable and cleaner energy options. Renewable biofuels like biohydrogen biomethane biogas ethanol and butenol represent attractive energy sources to meet the growing global demand thanks to sustainable and cost efficient production approaches based on cellulosic biomass. Currently the commercialization of these technologies is hindered by technical and economic limitations such as biomass complexity and pre treatment enzyme hydrolysis production efficiency as well as storage and cost. As such this book presents economically viable and sustainable approaches to improve existing biofuel technologies and appeals to anyone with an interest in biofuels as renewable energy options and their practical implementation