title: Comparison of pretreatment methods for rye straw in the second generation biorefinery: effect on cellulose, hemicellulose and lignin recovery.
abstract: The increasing interest in lignocellulose-based biorefineries boosts the further development of the needed pretreatment methods for preprocessing biomass. There are a large number of different processes that are being investigated; however research is made mostly based on different types of biomass with the same pretreatment or several modifications of the same process for a given type of biomass. In this work a comparison of promising chemical pretreatments using the same biomass was performed. Organosolv (OS), Steam (SE) and Liquid-Hot-Water (LHW) processes were used for the pretreatment of rye straw and the treated solids further enzymatically hydrolyzed. Best results for carbohydrate and lignin yield were found for the OS pretreatment followed close by the LHW and SE with similar results. All of the processes showed satisfactory performance for the pretreatment of lignocellulosic biomass for application in the second generation biorefinery.
authors.affiliation: Hamburg University of Technology, Institute of Thermal Separation Processes, Eißendorfer Strasse 38, D-21073 Hamburg, Germany. lilia.perez@tuhh.de
authors.forename: Lilia
authors.initials: L
authors.lastname: Perez-Cantu
authors.forename: Andreas
authors.initials: A
authors.lastname: Schreiber
authors.forename: Fokko
authors.initials: F
authors.lastname: Schütt
authors.forename: Bodo
authors.initials: B
authors.lastname: Saake
authors.forename: Christian
authors.initials: C
authors.lastname: Kirsch
authors.forename: Irina
authors.initials: I
authors.lastname: Smirnova
mesh_terms: D002482:Cellulose / Q000378:metabolism*; D002850:Chromatography, Gel; D005947:Glucose / Q000302:isolation & purification; D006868:Hydrolysis; D008031:Lignin / Q000378:metabolism*; D011134:Polysaccharides / Q000378:metabolism*; D012434:Secale / Q000378:metabolism*; D013227:Steam
chemical_list: D011134:Polysaccharides; D013227:Steam; C007916:hemicellulose; D002482:Cellulose; D008031:Lignin; D005947:Glucose
keywords: Biorefinery; Hydrolysis; Lignocellulose; Optimization; Pretreatment