RT book part T1 Biomethanization of agricultural lignocellulosic wastes: Pretreatments A1 Fernández Rodríguez, Juana A1 De Diego-Díaz, Beatriz A1 Tapia-Martín, Eugenia A2 Tecnologías del Medio Ambiente K1 agricultural lignocellulosic waste K1 anaerobic digestion K1 pretreatments K1 optimization AB Agricultural lignocellulosic waste can generate serious environmental problems if not properly managed. Biodegradation, through anaerobic digestion, is a cost-effective strategy for biogas production. However, studies on the biodegradation of lignocellulose show that the substrate is recalcitrant to microbiological hydrolysis, which reduces the efficiency of converting organic matter into biogas. The main reasons are its complex structure and slow biodegradation. The appropriate performance of biomethanization suggests a deep knowledge of substrates composition. Typically, the composition is about 10–25% lignin, 20–30% hemicellulose and 40–50% cellulose. This book chapter will summarize the anaerobic digestion process and rate-limiting steps, compositional properties, focusing specially on pretreatment strategies applied to lignocellulosic biomass to improve methane yield, and overall anaerobic digestion performance. The most common pretreatments applied to organic substrates will be studied: physical, chemical, biological and the combination of them. Additionally, the new trends in pretreatments will be exposed. PB Elsevier SN 978-0-323-85223-4 YR 2021 FD 2021 LK http://hdl.handle.net/10498/34080 UL http://hdl.handle.net/10498/34080 LA eng DS Repositorio Institucional de la Universidad de Cádiz RD 12-nov-2026