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lignin-carbohydrate complex (LCC)
Items for "lignin-carbohydrate complex (LCC)"
Changes in the lignin-carbohydrate complex in softwood kraft pulp during kraft and oxygen delignification
Three kraft pulps in the kappa number range between 50 and 20 and the same pulps oxygen-delignified to similar lignin contents (kappa approximately 6) were analyzed for lignin-carbohydrate complexes (LCC) by a method based on selective enzymatic hydrolysis of the cellulose, and quantitative fractionation of the LCC...
Keywords: bleachability, kappa number, kraft pulping, lignin-carbohydrate complex (LCC), oxygen delignification, residual lignin, specific absorptivity
10/2004 | Holzforschung, Walter de GruyterCharacterization of lignin-carbohydrate complexes from spruce sulfite pulp
Lignin-carbohydrate complexes (LCCs) were isolated from unbleached acid sulfite pulp by selective enzymatic hydrolysis followed by fiber swelling and extraction...
Keywords: acid sulfite pulp, glucomannan, lignin-carbohydrate complex (LCC), phenyl glucoside, xylan
03/2006 | Holzforschung, Walter de GruyterThe formation of aromatic end group structures in O -alkyl substituted celluloses under alkaline pulping conditions
UV resonance Raman (UVRR) spectroscopy was used to study changes in the structure of reducing end groups of
Keywords: aromatic end group, carboxymethyl cellulose, ?,?-conjugated aldehyde end group, creosol, lignin-carbohydrate complex (LCC), methyl cellulose, soda pulping, UV resonance Raman spectroscopy (UVRRS)
07/2006 | Holzforschung, Walter de GruyterAmphiphilicity of a lignin-carbohydrate complex
A lignin-carbohydrate complex (LCC) fraction isolated from the residue of milled wood lignin extraction of birch was found to form self-aggregates in water...
Keywords: amphiphilicity, dynamic light scattering (DLS), Langmuir-Blodgett (LB) film, lignin-carbohydrate complex (LCC), magnesium 1-anilinonaphtalene-8-sulfonate (ANS), ?-A profile, self-aggregation, sonication, static light scattering (SLC)
11/2006 | Holzforschung, Walter de GruyterMWL fraction with a high concentration of lignin-carbohydrate linkages: Isolation and 2D NMR spectroscopic analysis
A preparation enriched in lignin-carbohydrate fragments (LCC-AcOH) was isolated in the course of purification of loblolly pine crude milled wood lignin (MWL)...
Keywords: 2D NMR, ester lignin-carbohydrate bonds, ether lignin-carbohydrate bonds, lignin-carbohydrate complex (LCC), loblolly pine, milled wood lignin (MWL), phenyl glycoside linkages
01/2007 | Holzforschung, Walter de GruyterLignin-carbohydrate network in wood and pulps: A determinant for reactivity
Pretreatment of wood or kraft pulp with endoglucanase followed by swelling in urea leaves a non-crystalline residue that can be dissolved in strong aqueous sodium hydroxide-sodium borate solution...
Keywords: birch, endoglucanase, Eucalyptus globulus, kraft pulp, lignin-carbohydrate complex (LCC), size exclusion chromatography (SEC), spruce, thioacidolysis
11/2007 | Holzforschung, Walter de Gruyter