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.
Results
Showing 1 to 7 of 7 for “"lignin-carbohydrate"”.
-
Synthesis and characterization of lignin-carbohydrate block copolymers
Hydroxypropyl lignin derivative block (HPL) was reacted with low DP cellulose triacetate block (CTA). The synthesis of this block copolymer involves the following steps. • Synthesis of an hydroxyl-terminated CTA oligomer through the depolymerization of high molecular weight cellulose triacetate …
-
Synthesis of lignin-carbohydrate model compounds and neolignans
… plant cell walls, cellulose, hemicellulose and lignin, are intimately associated with one another. Cellulose is associated with hemicellulose via non-covalent linkages, whereas lignin is theorized to be associated with cellulose and hemicellulose via both covalent and non-covalent linkages. The …
-
Lignocellulose deconstruction using glyceline and a chelator-mediated Fenton system
… cell wall materials by causing breakage of lignin-carbohydrate linkages and depolymerization of the biomass components, and 2) a chelator-mediated Fenton reaction (CMF) that chemically modifies the nanostructure of the cell wall through a non-enzymatic cell wall deconstruction. After …
-
Self-Assembly of Pullulan Abietate on Cellulose Surfaces
… between regions of cellulose, hemicellulose, and lignin and therefore adhesion between adjacent phases is increased. The formation of interphases occurs as a consequence of the self-assembly process which governs the formation of wood. If this process was understood more thoroughly, perhaps …
-
Chemical composition and fiber structure as factors affecting fiber fermentation
… the byproducts were fermented, we concluded that lignin encrustation was a factor inhibiting the fermentation of both CSH and OH. Lignin-carbohydrate/phenolic-carbohydrate complexes were factors inhibiting OH fermentation. The degree of polymerization of cellulose as a factor affecting fiber …
-
Biopolymer Structure Analysis and Saccharification of Glycerol Thermal Processed Biomass
… increasing the removal of side-chain sugars and lignin-carbohydrate linkages based on severity conditions. After pretreatment, 41% of the lignin and 68% of the xylan is recovered in a dry powdered form by subsequent extractions without additional catalysts, leaving a relatively pure cellulose …
-
Carbon storage and preservation in seagrass meadows
… contribution of seagrass-derived organics (lignin, carbohydrate, and a black-carbon-like OM) into the sediment. The proportion of black-carbon-like material increased with age/depth, indicating that it underwent selective preservation. Carbohydrates decreased with depth/age and lignin showed …