This edited book provides knowledge about hemicelluloses biorefinery approaching production life cycle, circular economy, and valorization by obtaining value-added bioproducts and bioenergy. A special focus is dedicated to chemical and biochemical compounds produced from the hemicelluloses derivatives platform. Hemicelluloses are polysaccharides located into plant cell wall, with diverse chemical structures and properties. It is the second most spread organic polymer on nature and found in vast lignocellulosic materials from agro and industrial wastes, therefore, hemicelluloses are considered as abundant and renewable raw material/feedstock. Biorefinery concept contributes to hemicelluloses production associated with biomass industrial processes. Hemicelluloses are alternative sources of sugars for renewable fuels and as platform for chemicals production. This book reviews chemical processes for sugar production and degradation, obtaining of intermediate and final products, and challenges for pentose fermentation. Aspects of hemicelluloses chain chemical and enzymatic modifications are presented with focus on physicochemical properties improvement for bioplastic and biomaterial approaches. Hemicelluloses are presented as sources for advanced materials in biomedical and pharmaceutical uses, and as hydrogel for chemical and medicine deliveries. An interdisciplinary approach is needed to cover all the processes involving hemicelluloses, its conversion into final and intermediate value-added compounds, and bioenergy production. Covering this context, this book is of interest to teachers, students, researchers, and scientists dedicated to biomass valorization. This book is a knowledge source of basic aspects to advanced processing and application for graduate students, particularly. Besides, the book serves as additional reading material for undergraduate students (from different courses) with a deep interest in biomass and waste conversion, valorization, and chemical products from hemicelluloses

Autorentext
Dr. Michel Brienzo is a researcher at São Paulo State University (Unesp), Institute for Research in Bioenergy (IPBEN), working in Biomass Characterization for Bioenergy and Biorefinery, coordinating the Lab of Characterization and Conversion of Biomass. Dr. Brienzo holds B.Eng in Biochemical with an emphasis in Biotechnology and a Ph.D. grade in Applied Microbiology Sciences from the University of São Paulo (USP). Dr. Brienzo worked as a researcher for 3 years at the National Institute of Metrology, Quality and Technology (Inmetro), working in the physicochemical characterization of biomass and enzymatic digestibility of lignocellulose (chemistry and enzymology of biomass bioconversion). Dr. Brienzo has a post-doctoral position achieved at Stellenbosch University (South Africa) in the Process Engineering Department studying physicochemical properties of biomass. Dr. Brienzo researches are focused mainly on the biomass chemical and physicochemical properties, polysaccharides extraction, pretreatment, and enzymatic hydrolysis. Hemicellulose has special attention on his projects that study its solubilization, conversion into bioactive compounds, and bioplastic/biomaterials obtaining.

Inhalt
Chapter 1. Hemicelluloses role in biorefinery systems of cellulosic bioethanol, particleboard and, pulp and paper industries.- Chapter 2. Sustainable Biorefinery Processing for Hemicellulose Fractionation and Biobased Products in a Circular Bioeconomy.- Chapter 3. Production of hemicellulosic sugars from residual lignocellulosic biomass in an integrated smallscale biorefinery: technoeconomic and life cycle assessments.- Chapter 4. Composition and chemical structure of hemicelluloses and polysaccharides with capability of gel formation.- Chapter 5. Analytical techniques applied to hemicellulose structure and functional characterization.- Chapter 6. Chemical modification strategies for developing functionalized hemicellulose: Advanced applications of modified hemicellulose.- Chapter 7. Enzymatic approach on the hemicellulose chain structural modification and the main enzymes production and purification.- Chapter 8. Hemicellulose application for the production of bioplastics and biomaterials.- Chapter 9. Oligosaccharides from lignocellulosic biomass and their biological and physicochemical properties.- Chapter 10. Advances and new perspectives in prebiotic, probiotic and symbiotic products for food nutrition and feed.- Chapter 11. Hemicellulose sugar fermentation: hydrolysate challenges, microorganisms, and value-added products.-Chapter 12. Production of Platform Chemicals and High Value Products from Hemicellulose.-Chapter 13. Synthesis of Furan Compounds from Hemicelluloses.- Chapter 14. Biomedical and pharmaceutical applications of xylan and its derivatives.- Chapter 15. Hemicellulose-based delivery systems: Focus on Pharmaceutical and Biomedical Applications.