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Filtering by: Creator Gamroth, M. J. (Michael J.) Remove constraint Creator: Gamroth, M. J. (Michael J.) Advisor Penner, Michael H. Remove constraint Advisor: Penner, Michael H. Degree Level Doctoral Remove constraint Degree Level: Doctoral

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  • Utilization of lignocellulosic polysaccharides

    Creator:
    Fenske, John J.
    Abstract:
    Lignocellulosic biomass represents a vast supply of fermentable carbohydrates and functional aromatic compounds. Conversion of lignocellulosics to ethanol and other useful products would be of widespread economical and environmental benefit. Better understanding of the behavior of different lignicellulosic feedstocks in fermentation protocols as well as catalytic activities involved in lignocellulosic...
    Resource Type:
    Dissertation
    Full Text:
    . John J. Fenske, Author Acknowledgements Professor Michael H. Penner has earned my deepest respect

  • 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

  • Quantification and reactivity of cellulose reducing ends : implication for cellulose

    Creator:
    Kongruang, Sasithorn
    Abstract:
    The primary purpose of this study was to (1) develop methods for the analysis of and (2) provide information on the chemical nature of reducing ends in typical cellulose substrates used for the study of cellulolytic enzymes. The studies were designed such that values obtained for cellulose substrates were compared...
    Resource Type:
    Dissertation
    Full Text:
    . Abstract approved: Michael H. Penn&John P. Bolte The primary purpose of this study was to (1) develop

  • 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:
    . CONTRIBUTION OF AUTHORS Dr. Michael H. Penner and Dr. Lisbeth M. Goddik were involved with experimental

  • 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

  • Salt and polyelectrolyte affect on food colloid function : polygalacturonic acid and egg albumen case studies

    Creator:
    Chen, Chi-Shen
    Abstract:
    The primary purpose of this study was to try to (1) provide information on the chemical nature, including turbidity formation, of polygalacturonic acid in different concentrations of NaCl solution. (2) use turbidity formation characteristics to develop an assay for determining the activities polygalacturonic acid depolymerases by using a polyelectrolyte. (3)...
    Resource Type:
    Dissertation
    Full Text:
    : ______________________________________________________ Michael. H. Penner The primary purpose of this study was to try to (1) provide

  • 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:
    - oligosaccharides. Eur. J. Biochem. 165:343-351. 30 Claeyssens, M., Tomme, P., Brewer, C.F., and Hehre, E.J

  • 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:
    . Michael H. Penner, for his time and support throughout my study. I owe special thanks to Dr. Robert J

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

    Creator:
    Huang, Xiaolin
    Resource Type:
    Dissertation
    Full Text:
    Abstract approved by : . Michael H. Penner The apparent substrate inhibition properties of

  • Digesta passage rates in the rat

    Creator:
    Luick, Bret R.
    Abstract:
    The movements of digestion markers in the gut of the rat were investigated and the results of the investigation are reported in two manuscripts. The objective of the first study was to determine the influence of particle size of dietary wheat bran, chosen as a representative insoluble fiber, on the...
    Resource Type:
    Dissertation
    Full Text:
    Passage Rates in the Rat Abstract approved: , | . Michael H. Penner The movements of digestion