This handbook provides a comprehensive overview of techniques applied in biorefinery. it covers the basic principles, upfront research accomplishments as well as successful industrial applications, including all necessary steps for the provision and preparation of the biomass and all possible downstream processing steps. The book is structured in a way that is appropriate for advanced graduate students and professionals in diverse scientific and engineering communities, including biocatalysis, chemical catalysis, metabolic engineering, bioprocess engineering as well as in various engineering disciplines.