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Items for "hemicellulose"

Size exclusion chromatographic and UV-VIS absorption analyses of unbleached and bleached softwood kraft pulps using LiCl/1,3-dimethyl-2-imidazolidinone as a solvent

Unbleached and bleached kraft pulps and holocellulose prepared from softwood were totally soluble in 8% LiCl/1,3-dimethyl-2-imidazolidinone (LiCl/DMI)...

Keywords: cellulose, degree of polymerization, hemicellulose, LiCl/DMI, residual lignin, SEC-PDA-MALLS, softwood holocellulose, softwood kraft pulps, UV-VIS absorption

05/2007 | Holzforschung, Walter de Gruyter
Spatial relationships between polymers in Sitka spruce: Proton spin-diffusion studies

The spatial arrangement of polymers in Sitka spruce (Picea sitchensis) was investigated by NMR proton spin-diffusion studies, supplemented by deuterium-exchange experiments monitored by FTIR spectroscopy...

Keywords: cell wall models, cellulose, hemicellulose, lignin, NMR spectroscopy, supramolecular structure of wood

11/2006 | Holzforschung, Walter de Gruyter
Ultrastructural changes in a holocellulose pulp revealed by enzymes, thermoporosimetry and atomic force microscopy

To increase our knowledge of the ultrastructure within softwood fibres, enzymatic treatment, thermoporosimetry, light microscopy, and atomic force microscopy with image analysis were used to investigate the structure of holocellulose softwood pulp fibres...

Keywords: atomic force microscopy, cell wall, cellulose, drying, enzyme, fibril, hemicellulases, hemicellulose, holocellulose, Norwegian spruce, Picea abies, pores, pore size, pore volume, refining, ultrastructure

11/2005 | Holzforschung, Walter de Gruyter