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extractives
Items for "extractives"
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 GruyterNew insights into wood and cement interaction
This work deals with the influence of poplar extractives and poplar alkaline degradation products on the hydration of cement...
Keywords: alkaline degradation, Electrical Conductivity, extractives, hydration of cement, setting retardation, wood-cement composites
05/2005 | Holzforschung, Walter de GruyterSurface lignin and extractives on hardwood RDH kraft pulp chemically characterized by ToF-SIMS
The chemical characteristics of lignin and extractives on the outermost surface of hardwood rapid displacement heating (RDH) kraft pulp were studied using time-of-flight secondary ion mass spectrometry (ToF-SIMS)...
Keywords: birch, chemical structure, Composition, extractives, hardwood, kraft pulp, lignin, rapid displacement heating (RDH), secondary ion mass spectrometry, Surface, surface analysis, TCF bleaching, time-of-flight secondary ion mass spectrometry (ToF-SIMS)
09/2005 | Holzforschung, Walter de GruyterXPS in combination with mercurization – incorporation of mercury into different morphological parts of an unbleached softwood kraft pulp
In this study the rate and extent of mercury incorporation into different morphological fractions, i.e., fibers, mechanically peeled fibers, primary and secondary fines, of an unbleached softwood kraft pulp were evaluated...
Keywords: ESCA, extractives, fiber surfaces, fines, lignin, mercurization, softwood kraft pulp, XPS
01/2006 | Holzforschung, Walter de GruyterComparison of different XPS methods for fiber surface analysis
Three different XPS methods based on the O/C atomic ratio, C1 carbon content, and Hg amount are compared in this study to quantify the surface coverage of various pulp fiber surfaces by lignin and extractives...
Keywords: ESCA, extractives, fiber surfaces, lignin, mercurization, softwood kraft pulp, thermomechanical pulp, wheat-straw pulp, XPS
01/2006 | Holzforschung, Walter de GruyterDecay resistance, extractive content, and water sorption capacity of Siberian larch (Larix sibirica Lebed.) heartwood timber
The aim of this study was to find chemical or physical properties of Siberian larch heartwood timber that correlate with the variation in decay resistance...
Keywords: arabinogalactans, decay resistance, extractives, flavonoids, Folin-Ciocalteu, heartwood, hygroscopicity, Larix sibirica, moisture content, taxifolin
01/2006 | Holzforschung, Walter de GruyterTime-domain 1H NMR characterization of the liquid phase in greenwood
The time domain of 1H NMR spectroscopy allows straightforward editing of the
Keywords: 13C and 1H NMR, Contin program, extractives, maritime pine wood, moisture content, Pinus pinaster, Relaxation Time, time domain in 1H NMR, transversal relaxation time
05/2006 | Holzforschung, Walter de GruyterThe nature of chromophores in high-extractives mechanical pulps: Western red cedar (Thuja plicata Donn) chemithermomechanical pulp (CTMP)
The utilization of western red cedar mechanical pulp is limited by low brightness caused by a high chromophore content...
Keywords: borohydride, brightness, chemithermomechanical pulp (CTMP), chromophores, color, coniferaldehyde, DRIFT, DRUV, extractives, peroxide, quinones, western red cedar
07/2006 | Holzforschung, Walter de GruyterFactors influencing timber gluability with one-part polyurethanes – studied with nine Australian timber species
The bulk and surface properties of blocks of nine Australian wood species of commercial importance were investigated to elucidate the factors affecting timber gluability with structural one-component polyurethane adhesives...
Keywords: adhesion, bonding, Density, Eucalyptus, extractives, gluability, one-component polyurethane, strength, timber, wood
07/2006 | Holzforschung, Walter de GruyterPhenolic compounds in silver birch (Betula pendula Roth) wood
Three new phenolic compounds (4-hydroxy-2-methoxyphenyl-6-
Keywords: Betula pendula Roth, diarylheptanoids, extractives, lignans, phenolic glycosides, wood
08/2006 | Holzforschung, Walter de GruyterScreening fungi tolerant to Western red cedar (Thuja plicata Donn) extractives. Part 1. Mild extraction by ultrasonication and quantification of extractives by reverse-phase HPLC
Western red cedar (
Keywords: extractives, HPLC, lignan, quantification, tropolone, Western red cedar (Thuja plicata Donn)
03/2007 | Holzforschung, Walter de GruyterScreening fungi tolerant to Western red cedar (Thuja plicata Donn) extractives. Part 2. Development of a feeder strip assay
Western red cedar (
Keywords: decks, extractives, pioneer fungi, ?-thujaplicin, western red cedar
03/2007 | Holzforschung, Walter de GruyterQuantitative assessment of total phenol contents of European oak (Quercus petraea and Quercus robur ) by diffuse reflectance NIR spectroscopy on solid wood surfaces
Near infrared spectroscopy (NIRS) combined with multivariate analysis techniques was applied to assess phenol content of European oak...
Keywords: European oak, extractives, near infrared spectroscopy, spectra pre-processing procedures, total phenols
11/2008 | Holzforschung, Walter de GruyterFT-NIR spectroscopy in predicting the decay resistance related characteristics of solid Scots pine (Pinus sylvestris L.) heartwood
FT-NIR spectroscopy equipped with a fiber optic probe was used to predict the mass loss caused by a brown-rot fungus (
Keywords: durability, extractives, Folin-Ciocalteu, Grading, near infrared spectroscopy, partial least square (PLS) regression, resin acids, stilbenes
05/2008 | 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 GruyterLaboratory screening of tropical hardwoods for natural resistance to the marine borer Limnoria quadripunctata : The role of leachable and non-leachable factors
The marine borer
Keywords: extractives, Limnoria quadripunctata, marine borer, natural durability, screening
01/2008 | Holzforschung, Walter de Gruyter