title: Optimization of steam pretreatment of SO2-impregnated corn stover for fuel ethanol production.
abstract: In this study, corn stover with a dry matter content of 20% was impregnated with SO2 and then steam pretreated for various times at various temperatures. The pretreatment was evaluated by enzymatic hydrolysis of the solid material and analysis of the sugar content in the liquid. The maximum overall yield of glucose, 89% of the theoretical based on the glucan in the raw material, was achieved when the corn stover was pretreated at 200 degrees C for 10 min. The maximum overall yield of xylose, 78%, was obtained with pretreatment at 190 degrees C for 5 min.
authors.affiliation: Department of Chemical Engineering, Lund University, P.O. Box 124, SE-221 00 Lund, Sweden. karin.ohgren@chemeng.lth.se
authors.forename: Karin
authors.initials: K
authors.lastname: Ohgren
authors.forename: Mats
authors.initials: M
authors.lastname: Galbe
authors.forename: Guido
authors.initials: G
authors.lastname: Zacchi
mesh_terms: D018929:Cell Culture Techniques / Q000379:methods*; D002482:Cellulose / Q000737:chemistry / Q000378:metabolism; D003470:Culture Media / Q000737:chemistry* / Q000378:metabolism; D004736:Energy-Generating Resources; D000431:Ethanol / Q000378:metabolism*; D008031:Lignin / Q000737:chemistry / Q000378:metabolism; D035261:Plant Components, Aerial / Q000737:chemistry / Q000382:microbiology; D012441:Saccharomyces cerevisiae / Q000254:growth & development / Q000378:metabolism*; D013227:Steam; D013458:Sulfur Dioxide / Q000737:chemistry*; D003313:Zea mays / Q000737:chemistry* / Q000382:microbiology*
chemical_list: D003470:Culture Media; D013227:Steam; D013458:Sulfur Dioxide; C036909:lignocellulose; D000431:Ethanol; D002482:Cellulose; D008031:Lignin