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hemicelluloses
Items for "hemicelluloses"
Chemical composition of 36 Brazilian Amazon forest wood species
Woods of 36 tree species from the Brazilian Amazon forest have been extracted and analyzed by means of total hydrolysis...
Keywords: cellulose, extractives, hemicelluloses, lignin, sugars, summative analysis, total hydrolysis of wood, tropical wood species
05/2007 | Holzforschung, Walter de GruyterVapor-phase diethyl oxalate pretreatment of wood chips: Part 2. Release of hemicellulosic carbohydrates
Wood chips of pine, spruce, aspen, and maple were treated at 135–140°C with diethyl oxalate (DEO) and analyzed for extractable and residual carbohydrates...
Keywords: biorefining, ester, hardwood, hemicelluloses, oxalic acid, Oxalate, softwood
05/2007 | Holzforschung, Walter de GruyterDissolution of fibre material in alkaline pre-treatment and refining of spruce CTMP
The chemistry of chemithermomechanical pulping (CTMP) was assessed by chemical pre-treatment of spruce chips, followed by laboratory-scale refining...
Keywords: chemithermomechanical pulping, deacetylation, demethylation, hemicelluloses, pectins, Picea abies, sulfonation
01/2006 | Holzforschung, Walter de GruyterFenton-induced degradation of polyethylene glycol and oak holocellulose. A model experiment in comparison to changes observed in conserved waterlogged wood
Degradation of polysaccharides and polyethylene glycol have recently been observed in the wood of the Swedish war-ship
Keywords: Acetic Acid, cellulose, formic acid, glycolic acid, hemicelluloses, Iron, oxalic acid, polyethylene glycol, sulfur, Vasa, wood degradation, xylan
11/2008 | Holzforschung, Walter de GruyterExtraction of galactoglucomannan from spruce wood with pressurised hot water
Sapwood chips and ground wood of spruce have been extracted with pressurised pure water in an accelerated solvent extractor at temperatures from 100 to 180°C...
Keywords: acetyl groups, galactoglucomannan, hemicelluloses, hot-water extraction, lignin, molar mass, Picea abies, pressurised extraction, spruce wood, xylan
11/2008 | Holzforschung, Walter de GruyterAnalysis of acids and degradation products related to iron and sulfur in the Swedish warship Vasa
Aqueous wood extracts from the historic Swedish warship
Keywords: Acetic Acid, cellulose, formic acid, glycolic acid, hemicelluloses, Iron, oxalic acid, polyethylene glycol, sulfur, Vasa, wood degradation, xylan
11/2008 | Holzforschung, Walter de GruyterExtractive composition and summative chemical analysis of thermally treated eucalypt wood
Eucalypt wood (
Keywords: chemical composition, Eucalyptus globulus, extractives, heat treatment, hemicelluloses
05/2008 | Holzforschung, Walter de GruyterHydrothermal dissolution of mixed southern hardwoods
A hydrothermal dissolution profile of wood components cellulose, hemicelluloses, and lignin of hardwood during autohydrolysis for 100 min at temperatures from 130 to 170°C in a modified accelerated solid extraction system (Dionex ASE-100) is described...
Keywords: autohydrolysis, Extraction, hardwood, hemicelluloses, lignin, oligosaccharides, xylan
09/2008 | Holzforschung, Walter de GruyterDegradation of polyethylene glycol and hemicellulose in the Vasa
Mass spectrometric analysis of aqueous wood extracts from the Swedish warship
Keywords: catalytic oxidation, hemicelluloses, Hydrolysis, matrix-assisted laser desorption/ionization-time of flight (MALDI-TOF), polyethylene glycol, Vasa, wood degradation
01/2008 | Holzforschung, Walter de Gruyter