title: Pulp properties resulting from different pretreatments of wheat straw and their influence on enzymatic hydrolysis rate.
abstract: Wheat straw was subjected to three different processes prior to saccharification, namely alkaline pulping, natural pulping and autohydrolysis, in order to study their effect on the rate of enzymatic hydrolysis. Parameters like medium concentration, temperature and time have been varied in order to optimize each method. Milling the raw material to a length of 4mm beforehand showed the best cost-value-ratio compared to other grinding methods studied. Before saccharification the pulp can be stored in dried form, leading to a high yield of glucose. Furthermore the relation of pulp properties (i.e. intrinsic viscosity, Klason-lignin and hemicelluloses content, crystallinity, morphology) to cellulose hydrolysis is discussed.
authors: Institute of Plant and Wood Chemistry, Dresden University of Technology, Pienner Str. 19, 01723 Tharandt, Germany. Electronic address: christine.rossberg@forst.tu-dresden.de.
authors: Christine
authors: C
authors: Rossberg
authors: Institute of Chemical Technology, Freiberg University of Mining and Technology, Leipziger Str. 29, 09595 Freiberg, Germany.
authors: Doreen
authors: D
authors: Steffien
authors: Institute of Plant and Wood Chemistry, Dresden University of Technology, Pienner Str. 19, 01723 Tharandt, Germany.
authors: Martina
authors: M
authors: Bremer
authors: Saxon Institute for Applied Biotechnology, Leipzig University, Permoserstr. 15, 04318 Leipzig, Germany.
authors: Swetlana
authors: S
authors: Koenig
authors: Laboratório Nacional de Energia e Geologia, I.P., Unidade de Bioenergia, Estrada do Paço do Lumiar 22, 1649-038 Lisboa, Portugal.
authors: Florbela
authors: F
authors: Carvalheiro
authors: Laboratório Nacional de Energia e Geologia, I.P., Unidade de Bioenergia, Estrada do Paço do Lumiar 22, 1649-038 Lisboa, Portugal.
authors: Luís C
authors: LC
authors: Duarte
authors: Laboratório Nacional de Energia e Geologia, I.P., Unidade de Bioenergia, Estrada do Paço do Lumiar 22, 1649-038 Lisboa, Portugal.
authors: Patrícia
authors: P
authors: Moniz
authors: Saxon Institute for Applied Biotechnology, Leipzig University, Permoserstr. 15, 04318 Leipzig, Germany.
authors: Max
authors: M
authors: Hoernicke
authors: Institute of Chemical Technology, Freiberg University of Mining and Technology, Leipziger Str. 29, 09595 Freiberg, Germany.
authors: Martin
authors: M
authors: Bertau
authors: Institute of Plant and Wood Chemistry, Dresden University of Technology, Pienner Str. 19, 01723 Tharandt, Germany.
authors: Steffen
authors: S
authors: Fischer
mesh_terms: D000468:Alkalies / Q000494:pharmacology; D001709:Biotechnology / Q000379:methods*; D002480:Cellulase / Q000378:metabolism*; D002482:Cellulose / Q000032:analysis; D006868:Hydrolysis / Q000187:drug effects; D008031:Lignin / Q000032:analysis; D008855:Microscopy, Electron, Scanning; D010209:Paper; D013696:Temperature; D014908:Triticum / Q000737:chemistry* / Q000187:drug effects; D014783:Viscosity; D014866:Waste Products; D001617:beta-Glucosidase / Q000378:metabolism*
chemical_list: D000468:Alkalies; D014866:Waste Products; D002482:Cellulose; D008031:Lignin; D001617:beta-Glucosidase; D002480:Cellulase
keywords: Alkaline pulping; Autohydrolysis; Enzymatic hydrolysis; Natural pulping; Wheat straw