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Initial velocity analyses of milling effects on rates of enzyme-catalyzed saccharification of native wheat straw

Creator:: Nguyen, Quynh M.
Abstract:: There is considerable interest in developing environmentally friendly processes for the economical conversion of biomass plant material to biofuels, bioproducts and biomaterials. One approach to such a conversion process is to make use of enzymes for the conversion of plant polysaccharides to simple sugars; the simple sugars could then be...
Resource Type:: Masters Thesis
Full Text:: , substrate concentration of 0.0265 g of dry wheat straw/ml, temperature T=50 0 C, and 0.05 M sodium citrate

Wheat lignin as a functional dietary fiber component

Creator:: Junyusen, Tiraporn
Abstract:: This dissertation has focused on lignin byproducts that result from the alkali processing of wheat straw. The first study evaluated the application of “standard” lignin quantification methods for summative analyses of alkali-based processes. Mass closure during NaOH processing at 25, 50, and 75°C of wheat straw was evaluated using the...
Resource Type:: Dissertation
Full Text:: , Dr. Lisbeth M. Goddik, for her encouragement and understanding throughout my study. Besides my

A filter paper assay for low cellulase activities and the cultivation of Trichoderma reesei on acid whey and sweet whey permeate

Creator:: Nordmark, Tor Soren
Abstract:: The traditional filter paper assay for saccharifying cellulase originally described by M. Mandels et al (1976) has been modified to make possible low activity determinations of Trichoderma cellulases. The enzymatic activity appears to decline during a prolonged incubation period if no precautions have been taken. By means of adding bovine...
Resource Type:: Masters Thesis
Full Text:: paper assay for saccharifying cellulase originally described by M. Mandels et al (1976) has been

Porosity, surface area and enzymatic saccharification of microcrystalline cellulose

Creator:: Tantasucharit, Usicha
Abstract:: The research described in this thesis was aimed at understanding how particle size, porosity, and enzyme accessible surface area influence the rate of saccharification of microcrystalline cellulose. Microcrystalline cellulose (MCC) is a commonly used substrate for the study of cellulolytic enzymes. MCC preparations of different particle size are commercially available....
Resource Type:: Masters Thesis
Full Text:: A-k Substituting Km into equation 2.6 yields [£5] = LJU (2.8) m The concentration of

The relative activity of the cellulase enzyme system of Trichoderma reesei with native and modified cellulosic substrates

Creator:: Liaw, Ean-Tun
Resource Type:: Dissertation
Full Text:: microcrystalline cellulose from soft wood or cotton 123 31. Substrate-activity profile of Trichoderma reesei

Cellulase system of Trichoderma reesei QM9414 : a study of its apparent sustrate inhibition

Creator:: Huang, Xiaolin
Resource Type:: Dissertation
Full Text:: active active Cellobiose nil nil active Wood, T. M. (1989). 29 Structure-function of cellulases

Influence of extractives on the chemical analysis of switchgrass

Creator:: Tandjo, Djuhartini
Abstract:: This thesis summarizes an investigation into the need for removing extractives from herbaceous biomass feedstocks prior to their chemical characterization. Switchgrass (Panicum virgatum), was used in this study as a representative herbaceous biomass feedstock. The influence of extractives on the chemical analysis of switchgrass was done by comparing the composition...
Resource Type:: Masters Thesis
Full Text:: Technology '<M^J f^ Dean of Graduate Scho r I understand that my thesis will become part of the

Immobilized cellooligosaccharides in the study of trichoderma reesei cellobiohydrolases

Creator:: Sangseethong, Kunruedee
Abstract:: A novel type of model substrates, i.e. immobilized p-aminophenyl-β-D-cellooligosaccharides, was developed and used in the study of exocellulases. The two major cellobiohydrolases from Trichoderma reesei, CBH I and CBH II were used as representative enzymes. p-Aminophenyl derivatives of cellobiose (PAPG₂), cellotriose (PAPG₃), and cellotetraose (PAPG₄) were synthesized from the reaction...
Resource Type:: Dissertation
Full Text:: ., Hay, A.J., Wood, T., and Claeyssens, M. 1990 Study of the mode of action and site-specificity of the

The role of solvent extraction in the chemical characterization of corn stover feedstock

Creator:: Thammasouk, Khamphet
Abstract:: The consequences of extracting com stover feedstock with either 95% ethanol or hot water prior to the chemical analysis of the macrocomponents of that feedstock have been determined. Reports by others have recommended the removal of extraneous substance by solvent extraction prior to chemical analyses (Browning, 1967; TAPPI, 1988). The...
Resource Type:: Masters Thesis
Full Text:: characterization of wood species (Norman, 1937; Moore and Johnson, 1967; Theander, 1991). A mass balance that

Characterization of substrate-velocity relationships for the cellulase enzyme complex from Trichoderma viride

Creator:: Liaw, Ean-Tun
Abstract:: The influence of substrate and enzyme concentration on the rate of saccharification of two defined, insoluble, cellulose substrates, Avicel and Solka-Floc, by the cellulase enzyme system of Trichoderma viride has been evaluated. Assays utilized enzyme concentrations ranging from 0.014 to 0.056 filter paper unit per mL and substrate concentrations up...
Resource Type:: Masters Thesis
Full Text:: cotton, wood and biomass material but also exists in a significant amount in domestic, agricultural

ScholarsArchive@OSU

Initial velocity analyses of milling effects on rates of enzyme-catalyzed saccharification of native wheat straw

Wheat lignin as a functional dietary fiber component

A filter paper assay for low cellulase activities and the cultivation of Trichoderma reesei on acid whey and sweet whey permeate

Porosity, surface area and enzymatic saccharification of microcrystalline cellulose

The relative activity of the cellulase enzyme system of Trichoderma reesei with native and modified cellulosic substrates

Cellulase system of Trichoderma reesei QM9414 : a study of its apparent sustrate inhibition

Influence of extractives on the chemical analysis of switchgrass

Immobilized cellooligosaccharides in the study of trichoderma reesei cellobiohydrolases

The role of solvent extraction in the chemical characterization of corn stover feedstock

Characterization of substrate-velocity relationships for the cellulase enzyme complex from Trichoderma viride

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