Index Catalog // ScholarsArchive@OSU

Preparation and modification of cellooligosaccharides

Creator:: Akpinar, Ozlem
Abstract:: Cellooligosaccharides are the reaction intermediates produced during the hydrolysis of cellulose to glucose. Hence, they have the same chemical structure as cellulose, just shorter chain lengths. Cellooligosaccharides up to DP eight are soluble in water. The soluble cellooligosaccharides can be used "as is" in the food industry as non-digestible oligosaccharides...
Resource Type:: Dissertation
Full Text:: and Modification of Cellooligosaccharides Abstract approved: Michael H. Penner

The Role of Ascorbic Acid, β-Cyclodextrins, and Alternative Substrates in Dictating Rates of Polyphenol Oxidase-Catalyzed Browning in Potato-Based Reaction Mixtures

Creator:: Jiang, Shu
Abstract:: Enzymatic browning is a consequence of a series of reactions initiated by polyphenol oxidase (PPO)-catalyzed quinone formation. Unwanted browning negatively affects food quality and lowers consumer acceptability. Thus, there is general interest in strategies to control enzymatic browning. Cyclodextrins are cyclic glucan oligosaccharides that form inclusion complexes with a number...
Resource Type:: Dissertation
Full Text:: : ________________________________________________ Michael H. Penner Enzymatic browning is a consequence of a series of reactions

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:: : •- -1 - ■ /- \y - Michael H. Penner A novel type of model substrates, i.e. immobilized p

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:: : __________________________________________________________________ Michael H. Penner This dissertation has focused on lignin byproducts that result from the

Selective oxidation of biological matrices for subsequent peroxidase and peroxidase-based quantitative analyses

Creator:: Jiang, Shu
Abstract:: Hydrogen peroxide quantification is of broad interest due to the common use of hydrogen peroxide as an oxidizing agent in industrial processing and laboratory research. Hydrogen peroxide assays are also of general importance for biological studies aimed at understanding the role of in situ generated reactive oxygen species. In the...
Resource Type:: Masters Thesis
Full Text:: Peroxidase-Based Quantitative Analyses Abstract approved: Michael H. Penner Hydrogen peroxide

Conversion of lignocellulosic biomass : analysis of substrate characteristics

Creator:: Meunier-Goddik, Lisbeth
Abstract:: The objective of this research was to investigate the influence of physicochemical properties of lignocellulosic biomass on the rate and extent of cellulose conversion, i.e. the "hydrolyzability" of the substrate. The initial two parts of this thesis investigated the interactions between various components of pretreated biomass. The relevance of cellulase...
Resource Type:: Dissertation
Full Text:: : - L-- - , Michael H. Penner The objective of this research was to investigate the

Interactions of Trichoderma reesei exo-acting cellulases with p-aminophenyl 1-thio-β-D-cellobioside

Creator:: Piyachomkwan, Kuakoon
Abstract:: Cellulolytic enzymes capable of efficiently degrading crystalline cellulose are a complex mixture of endo- (endoglucanases) and exo-acting (cellobiohydrolases) enzymes. One approach to separating these enzymes is affinity chromatography. A new ligand, p-aminophenyl l-thio-β-D-cellobioside (APTC), is introduced for this purpose. The property of APTC in affinity chromatography is demonstrated using Trichoderma...
Resource Type:: Dissertation
Full Text:: -Cellobioside. Abstract approved: ,__ Michael H. Penner Cellulolytic enzymes capable of efficiently

Science and efficacy of mild sodium hydroxide treatments in enzyme-based wheat straw-to-glucose processing

Creator:: Sophonputtanaphoca, Supaporn
Abstract:: The work described in this dissertation focused on chemistry related to the use of aqueous sodium hydroxide as a treatment in the processing of wheat straw. A major emphasis was the comprehensive evaluation of straw component partitioning due to sodium hydroxide (NaOH) processing. This was evaluated over a range of...
Resource Type:: Dissertation
Full Text:: -‐ Based Wheat Straw-‐to-‐Glucose Processing Abstract approved: Michael H

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:: Substrates Abstract approved by : Michael H. Penner The relative merit of assays commonly applied to

Separation and detection of cellooligosaccharides on cellulose thin-layer chromatography

Creator:: Sookavatana, Narumon
Abstract:: Linear oligosacchardies of 1,4 linked β-D-glucopyranose are commonly referred to as cellodextrins (CD) or cellooligosaccharides (CO). They are of interest to those working in disciplines involving cellulose chemistry because they are often used as model substrates for cellulose itself. They are of interest to food scientists and nutritionists because they...
Resource Type:: Masters Thesis
Full Text:: approved: Michael H. Penner Linear oligosacchardies of 1,4 linked P-D-glucopyranose are commonly

ScholarsArchive@OSU

Preparation and modification of cellooligosaccharides

The Role of Ascorbic Acid, β-Cyclodextrins, and Alternative Substrates in Dictating Rates of Polyphenol Oxidase-Catalyzed Browning in Potato-Based Reaction Mixtures

Immobilized cellooligosaccharides in the study of trichoderma reesei cellobiohydrolases

Wheat lignin as a functional dietary fiber component

Selective oxidation of biological matrices for subsequent peroxidase and peroxidase-based quantitative analyses

Conversion of lignocellulosic biomass : analysis of substrate characteristics

Interactions of Trichoderma reesei exo-acting cellulases with p-aminophenyl 1-thio-β-D-cellobioside

Science and efficacy of mild sodium hydroxide treatments in enzyme-based wheat straw-to-glucose processing

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

Separation and detection of cellooligosaccharides on cellulose thin-layer chromatography

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