Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 7 of 7 for “"xylans"”.
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Studies of polysaccharide adsorption onto model cellulose surfaces and self-assembled monolayers by surface plasmon resonance spectroscopy
… (PCs), 2-hydroxypropyltrimethylammonium xylans (HPMAXs), and hydroxypropyl xylans (HPXs). Hydrophobic modification of pullulan with cinnamate groups promoted adsorption onto model surfaces of regenerated cellulose. In order to understand the relative contributions of hydrophilic and …
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Biochemical and molecular analyses of plant cell wall degrading enzymes from the rumen bacterium Ruminococcus albus 8
… that are expected to remove side chains from xylans. The genes were cloned, heterologously expressed in E. coli, and biochemically characterized to determine how the enzymes function synergistically to release soluble sugars that can be fermented by R. albus 8. In an experiment designed to …
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Plant cell wall degrading enzymes and their potential application to biofuel production
… release of glucose or xylose from cellulose and xylans respectively. As expected, Cb486 was also able to work synergistically with a number of endo-glucanases from the genome of C. bescii to release glucose from cellulosic substrates as well as xylose from xylan containing substrates.
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Studies of Interactions Between Rod-like Celulose Nanocrystals and Xylan and Pullulan Derivatives: A Light Scattering Study
… adsorption of 2-hydroxypropyltrimethylammonium xylans (HPMAXs) of degree of molar substitution MS = 0.34 onto rod-like cellulose nanocrystals (DOE-2-12Bs) were probed with zeta-potential measurements and polarized and depolarized dynamic light scattering. Zeta-potential changes of HPMAX/water, …
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Identifying candidate genes/loci influencing barley secondary cell wall properties
… molecules are embedded in a matrix of lignin and xylans polymers which form cross-links through cell wall bound ferulic acid; this matrix influences the efficiency of enzymatic breakdown of the cell wall. Changes in lignin content, lignin composition and phenolic acid content have been shown to …
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Two thermostable hemicellulases and their effects on wood pulps
… at 85°C. The xylanases were able to hydrolyse xylans but also had a pH-dependent CM cellulase activity, but this was never more than 10% of the xylanase activity. The mannanase hydrolysed mannan, glucomannans and galactomannans. The glucose content of the glucomannans had little or no effect on …
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Rheology And Organic Filler Interactions in Phenolic Resin Formulations
… it has undergone acid digestion to convert its xylans to furfural. During the viscoelastic oscillation studies, the corn-cob residue filled adhesives showed that they developed network structures in response to a high shear rate that were not observed using the other fillers. With the discovery …