title: Comparing the performance of Miscanthus x giganteus and wheat straw biomass in sulfuric acid based pretreatment.
abstract: The objective of this study was to assess and compare the suitability of Miscanthus x giganteus and wheat straw biomass in dilute acid catalyzed pretreatment. Miscanthus and wheat straw were treated in a dilute sulfuric acid/steam explosion pretreatment. As a result of combining dilute sulfuric acid- and steam explosion pretreatment the hemicellulose hydrolysis yields (96% in wheat straw and 90% in miscanthus) in both substrates were higher than reported in literature. The combined severity factor (=CSF) for optimal hemicellulose hydrolysis was 1.9 and 1.5 in for miscanthus and wheat straw respectively. Because of the higher CSF value more furfural, furfuryl alcohol, 5-hydroxymethylfurfural and acetic acid was formed in miscanthus than in wheat straw pretreatment.
authors.affiliation: University of Hohenheim, Yeast Genetic and Fermentation Technology (150f), Garbenstraße 23, 70599 Stuttgart, Germany. Electronic address: manuelk@uni-hohenheim.de.
authors.forename: M A
authors.initials: MA
authors.lastname: Kärcher
authors.affiliation: University of Hohenheim, Biobased Products and Energy Crops (340b), Fruwirthstraße 23, 70599 Stuttgart, Germany.
authors.forename: Y
authors.initials: Y
authors.lastname: Iqbal
authors.affiliation: University of Hohenheim, Biobased Products and Energy Crops (340b), Fruwirthstraße 23, 70599 Stuttgart, Germany.
authors.forename: I
authors.initials: I
authors.lastname: Lewandowski
authors.affiliation: University of Hohenheim, Yeast Genetic and Fermentation Technology (150f), Garbenstraße 23, 70599 Stuttgart, Germany.
authors.forename: T
authors.initials: T
authors.lastname: Senn
mesh_terms: D001089:Arabinose / Q000302:isolation & purification; D018533:Biomass; D001709:Biotechnology / Q000379:methods*; D000431:Ethanol / Q000378:metabolism; D006868:Hydrolysis; D008031:Lignin / Q000737:chemistry / Q000378:metabolism; D018547:Plant Stems / Q000737:chemistry; D006109:Poaceae / Q000737:chemistry*; D013227:Steam; D013464:Sulfuric Acids / Q000737:chemistry; D014908:Triticum / Q000737:chemistry*; D014994:Xylose / Q000302:isolation & purification
chemical_list: D013227:Steam; D013464:Sulfuric Acids; D000431:Ethanol; D008031:Lignin; D014994:Xylose; D001089:Arabinose; C033158:sulfuric acid
keywords: Bioenergy; Dilute-acid-pretreatment; Miscanthus x giganteus; Steam explosion; Wheat straw