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 20 of 25 for “"Renewable biomass"”.
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Metabolic engineering of yeast strains for renewable biomass utilization and valuable chemical production
… capable of utilizing various sugars derived from renewable biomass and produce valuable chemicals. Sugars derived from lignocellulosic biomass, mainly cellobiose and xylose, cannot be assimilated by the industrial microorganisms, such as yeast Saccharomyces cerevisiae. To utilize cellobiose or …
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Optically pure D (-) lactic acid biosynthesis from diverse renewable biomass: microbial strain development and bioprocess analysis
… the demand of stereocomplex PLA. Lignocellulosic biomass is a promising feedstock for lactic acid production because of its availability, sustainability and cost effectiveness compared to refined sugars and cereal grain-based sugars. Commercial use of lignocellulosic biomass for economic …
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In Vitro Synthetic Biology Platform and Protein Engineering for Biorefinery
In order to decrease our dependence on non-renewable petrochemical resources, it is urgently required to establish sustainable biomass-based biorefineries. Replacing fossil fuels with renewable biomass as a raw feedstock for the production of chemicals and biofuels is a main driving force of …
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Characterization of the expression patterns of <i>CELLULOSE SYNTHASE-LIKE A (CSLA)</i> genes in <i>arabidopsis thaliana</i> using reporter promoter-fusions and immunolocalization
… cell walls are the most abundant source of renewable biomass on Earth. Cell wall carbohydrates have many practical applications (e.g., forage, building materials, biofuels, textiles, paper, etc.), and within plants they contribute to structure, provide defense, and facilitate cellular …
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Optimization of sweet sorghum processing parameters
Production of fuel ethanol from renewable biomass sources has gained popularity in recent years. Sweet sorghum is one of the crops identified as an efficient producer of the sugars needed for ethanol production. The juice in the sweet sorghum pith contains the greatest proportion of nonstructural …
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High-Yield Cellulosic Hydrogen Production by Cell-Free Synthetic Cascade Enzymes: Minimal Bacterial Cellulase Cocktail and Thermostable Polyphosphate Glucokinase
Hydrogen production from abundant renewable biomass would decrease reliance on crude oils, achieve nearly zero net greenhouse gas emissions, create more jobs, and enhance national energy security. Cell-free synthetic pathway biotransformation (SyPaB) is the implementation of complicated chemical …
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Studies on Sucralose-Based Low Molecular Weight Gelators
… of sucralose that include being derived from renewable biomass, noncaloric, noncariogenic and over 600 times sweeter than sucrose. We hereby present the synthesis of hydrogelators from sucralose via systematically synthesizing various derivatives and testing for their hydrogelation tendency. …
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Catalytic Activity of Tungsten-dioxo and Tungsten-diimido Complexes
… these materials has become vital. Fortunately, renewable biomass derived materials may serve as a sustainable solution to the limited resources problem. Molecules derived from the degradation of biomasses are highly oxygenated and highly functionalized. Developing processes to efficiently …
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Catalytic biomass conversion and upgrading into platform chemicals and liquid fuels
… novel, efficient catalytic processes for plant biomass conversion and upgrading into versatile platform chemicals as well as oxygenated biodiesel and premium hydrocarbon kerosene/jet fuels is described in this dissertation. The chief motivation of using annually renewable biomass as the source …
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Biosynthesis and function of glucuronic acid substitution patterns on softwood xylan
… from coniferous trees is an important source of renewable biomass. It can contribute to provision of carbon neutral energy, biomaterials and housing for a growing population. Softwood is mainly composed of cellulose, galactoglucomannan, xylan and lignin. This thesis focuses on the biosynthesis …
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Tracking Sargassum in the Caribbean: the design, deployment, and validation of a low-cost surface drifter
… Although Sargassum holds promise as a renewable biomass source, several hurdles must be addressed, including consistent biomass production, processing techniques, and lack of industrial-scale biofuel plants using macroalgae. The core of the thesis is dedicated to the surface drifter …
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Optimal yeast strains for the production of fuels and chemicals from lignocellulosic biomass
… must use non-food plants, called cellulosic biomass. Such renewable biomass, however, contains both hexose and pentose sugars, mainly glucose and xylose, which are not efficiently fermented by microbes. Despite numerous efforts for improving xylose fermentation during the last two decades, a …
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Tracking Sargassum in the Caribbean: The Design, Deployment, and Validation of a Low-Cost Surface Drifter
… Although Sargassum holds promise as a renewable biomass source, several hurdles must be addressed, including consistent biomass production, processing techniques, and lack of industrial-scale biofuel plants using macroalgae. The core of the thesis is dedicated to the surface drifter …
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Enzymatic fuel cells via synthetic pathway biotransformation
… safe, and capable of using diverse and abundant renewable biomass with high energy densities, at mild reaction conditions. However, currently, three largest technical challenges for emerging enzymatic fuel cell technologies are incomplete oxidation of most fuels, limited power output, and short …
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Development of Building Blocks - Thermostable Enzymes for Synthetic Pathway Biotransformation (SyPaB)
Hydrogen production from abundant renewable biomass would decrease reliance on crude oils, achieve nearly zero net greenhouse gas emissions, create more jobs, and enhance national energy security. Cell-free synthetic pathway biotransformation (SyPaB) is the implementation of complicated chemical …
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Cell-Free Biosystems Comprised of Synthetic Enzymatic Pathways: Development of Building Blocks, Immobilization of Enzymes, Stabilization of Cascade Enzymes, and Generation of Hydrogen
The production of hydrogen from low-cost abundant renewable biomass would be vital to sustainable development. Cell-free (in vitro) biosystems comprised of synthetic enzymatic pathways would be a promising biomanufacturing platform due to several advantages, such as high product yield, fast …
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Catalytic Conversion of Lignocellulosic Biomass to Carboxylic Acids and Derivatives
… to a sustainable economy that is grounded in renewable biomass is driven by concern of climate change and anticipation of dwindling fossil fuel resources. Biofuel is a central theme of the sustainable transition due to the large market demand in the transportation sector. However, …
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Aerosol Synthesis and Electrochemical Analysis of Niobium Mixed-Metal Oxides for the Ethanol Oxidation Reaction in Acid and Alkaline Electrolyte
… refined from petroleum sources or attained from renewable biomass, and is more easily and safely stored and transported than hydrogen, methanol or gasoline. The full energy potential of ethanol in fuel cells can only be realized if the reaction follows a total oxidation pathway to produce CO2. …
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Systematic and combinatorial approaches for metabolic engineering of optimal yeast strains to produce fuels and chemicals
… fermenting various sugars abundant in renewable biomass. The research has broad applications for sustainable biological production of value-added fuels and chemicals. Initially, a systematic approach based on global reaction stoichiometry was applied to select gene knockout targets in …
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