Open Access. Powered by Scholars. Published by Universities.®
- Keyword
-
- Fuel (2)
- Methane (2)
- Adipic acid (1)
- Anaerobic (1)
- Astaxanthin (1)
-
- Beta-ketoadipate pathway (1)
- Bio hydrogen beyond Thauer limit (1)
- Bio-CNG (1)
- Biofuel (1)
- Biogas (1)
- Bioproduction (1)
- Camelina seed (1)
- Capture (1)
- Carbon (1)
- Carbon Nanotubes (1)
- Carbon fixation (1)
- Colorimetric Assay (1)
- Continuous stirred tank reactor (1)
- Dark fermentation (1)
- Digestion (1)
- Distillery (1)
- Dynamic Light Scattering (1)
- ELISA (1)
- Electrocatalysts (1)
- Extraction (1)
- Factor XIII (1)
- Fibrinogen (1)
- Fibronectin (1)
- Fluidized (1)
- Fouling and wetting (1)
- Publication
-
- Department of Chemical and Biomolecular Engineering: Theses and Student Research (4)
- Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research (2)
- Department of Chemical and Biomolecular Engineering: Faculty Publications (1)
- Department of Food Science and Technology: Faculty Publications (1)
- Honors Theses (1)
Articles 1 - 9 of 9
Full-Text Articles in Engineering
Investigation Of Oxygen Reduction Reaction In Carbon-Based Electrocatalysts, Andrew Mason
Investigation Of Oxygen Reduction Reaction In Carbon-Based Electrocatalysts, Andrew Mason
Honors Theses
In the modern era, some global challenges are energy storage conversion. To find sustainable solutions to this problem, researchers have turned to renewable energy resources. An example of promising energy generation devices is fuel cell. Fuel cells are electrochemical systems that convert the chemical energy of the fuel to electrochemical potential that can be used as direct current (dc) generators. Although these technologies are very attractive, they are known to be expensive due to high cost of catalysts and concerns regarding their energy densities. Fuel cells composed of two electrodes, namely cathode and anode and electrolyte separating the oxidizing agents …
Fabrication Of Polyvinylidene Fluoride Hollow Fiber Membranes For Membrane Distillation, Abdullah Al Balushi
Fabrication Of Polyvinylidene Fluoride Hollow Fiber Membranes For Membrane Distillation, Abdullah Al Balushi
Department of Chemical and Biomolecular Engineering: Theses and Student Research
Desalination technologies can help humanity tap into the most abundant source of water on earth, seawater; however, desalination is an energy-demanding process. Most of the desalination plants worldwide use conventional energy resources; therefore, desalination leaves a large carbon footprint. Solar energy is an available source of energy that can be harvested and integrated into desalination systems.
Membrane distillation (MD) is an emerging purification technology that many offers many advantages over traditional desalination systems. For starters, it can utilize low-grade thermal energy to drive the separation, therefore, it can be suitably integrated into the solar-thermal energy scheme. Additionally, MD can be …
Bioproduction Of Adipic Acid Using Engineered Pseudomonas Putida Kt2440 From Lignin-Derived Aromatics, Howard Willett
Bioproduction Of Adipic Acid Using Engineered Pseudomonas Putida Kt2440 From Lignin-Derived Aromatics, Howard Willett
Department of Chemical and Biomolecular Engineering: Theses and Student Research
Current industrial synthesis of adipic acid is nonrenewable and depends on a carcinogenic starting material, benzene. Biocatalysis with an engineered microorganism could turn a renewable feedstock into a value-added chemical such as adipic acid. Here we engineered P. putida KT2440 to transform lignin-derived aromatics, coumarate and ferulate, into adipic acid. Lignin is a recalcitrant plant biopolymer burned for thermal energy. Conversion of lignin into a value-added chemical will improve the efficiency of lignocellulose processing plants. The best performing engineered KT2440 strain produces 2.52 mM adipate at a 9.5% (mole/mole) yield. This was achieved by the genetic insertion of non-natural biosynthetic …
Modeling The Interplay Between Photosynthesis, Co2 Fixation, And The Quinone Pool In A Purple Non-Sulfur Bacterium, Adil Alsiyabi
Modeling The Interplay Between Photosynthesis, Co2 Fixation, And The Quinone Pool In A Purple Non-Sulfur Bacterium, Adil Alsiyabi
Department of Chemical and Biomolecular Engineering: Theses and Student Research
Rhodopseudomonas palustris CGA009 is a purple non-sulfur bacterium (PNSB) that can fix CO2 and nitrogen or break down organic compounds for its carbon and nitrogen requirements. Light, inorganic, and organic compounds can all be used for its source of energy. Excess electrons produced during its metabolic processes can be exploited to produce hydrogen gas or biodegradable polyesters (polyhydroxybutyrate). A genome-scale metabolic model of the bacterium was reconstructed to study the interactions between photosynthesis, carbon dioxide fixation, and the redox state of the quinone pool. A comparison of model-predicted flux values with published in vivo MFA fluxes resulted in predicted …
Fibrinogen, Factor Xiii And Fibronectin: A Biophysical And Kinetic Characterization Of Their Interactions, Frank Fabian
Fibrinogen, Factor Xiii And Fibronectin: A Biophysical And Kinetic Characterization Of Their Interactions, Frank Fabian
Department of Chemical and Biomolecular Engineering: Theses and Student Research
The development of recombinant-based liquid fibrin tissue sealants having enhanced hemostatic and wound healing properties will involve understanding as yet not well characterized interactions between fibrinogen, fibrin (Fbn) factor XIII, thrombin and fibronectin. We study these phenomena in the context of comparing plasma derived fibrinogen to recombinant fibrinogen (rFI) produced in the milk of transgenic cows. An abundance of purified γγ and γγ’ FI subspecies enables detailed study of γγ or γγ’ biomonomer and their respective Fbn biopolymer formation as having different substrate behaviors of activated plasma derived factor XIII (pFXIIIa2b2). High pressure size exclusion (HPSEC) …
Biomethane Production From Distillery Wastewater, Zachary Christman
Biomethane Production From Distillery Wastewater, Zachary Christman
Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research
Distillery wastewater treatment is a great ecological problem, for example, India produces 2.7 billion liters of alcohol that results in 40 billion liters of wastewater. However, this material can be seen as a resource since 11 million cubic meters of biogas at 60% methane could be produced in addition to cleaning the water. The distillery has two options of what to do with the biogas. The first is to use the biogas to fuel the distillery making the production plant more energy efficient and removing some of the need to buy natural gas. The other is to upgrade the biogas …
Improving The Distribution And Use Of Biogas By Conversion To Methanol, Zachary Christman
Improving The Distribution And Use Of Biogas By Conversion To Methanol, Zachary Christman
Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research
In this technology review, the process of turning an average biogas into methanol will be presented. The purpose is to find a better method of transporting the energy contained within biogas so that it may be used in industry as a value added product. The first step is removal of hydrogen sulfide, a corrosive chemical that can breakdown mechanical parts. The second step is carbon capture and conversion of the biogas into hydrogen. The final step is the hydrogenation of carbon dioxide into methanol using a copper catalyst and an alcohol co-catalyst.
Extraction Of Astaxanthin From Engineered Camelina Sativa Seed Using Ethanol-Modified Supercritical Carbon Dioxide, Liyang Xie, Edgar B. Cahoon, Yue Zhang, Ozan Ciftci
Extraction Of Astaxanthin From Engineered Camelina Sativa Seed Using Ethanol-Modified Supercritical Carbon Dioxide, Liyang Xie, Edgar B. Cahoon, Yue Zhang, Ozan Ciftci
Department of Food Science and Technology: Faculty Publications
Natural astaxanthin, a high-value carotenoid that is currently extracted mainly from marine organisms, was extracted from engineered camelina seed using ethanol-modified supercritical carbon dioxide (SC-CO2) for the first time, and compared with hexane and accelerated solvent extraction using hexane and ethanol. Response surface methodology (RSM) based on central composite rotatable design was employed to investigate the effect of pressure (30–45 MPa), temperature (40–60 °C), and ethanol concentration (10–35%, w/w). RSM-optimized conditions (41.6 MPa, 36.6 °C and 42.0% ethanol concentration) predicted the astaxanthin concentration as 437 μg/g oil, whereas the actual concentration was 421 ± 14 μg/g oil. Astaxanthin …
Comparative Kinetic Modeling Of Growth And Molecular Hydrogen Overproduction By Engineered Strains Of Thermotoga Maritima, Raghuveer Singh, Rahul Tevatia, Derrick White, Yaşar Demirel, Paul H. Blum
Comparative Kinetic Modeling Of Growth And Molecular Hydrogen Overproduction By Engineered Strains Of Thermotoga Maritima, Raghuveer Singh, Rahul Tevatia, Derrick White, Yaşar Demirel, Paul H. Blum
Department of Chemical and Biomolecular Engineering: Faculty Publications
Thermotoga maritima is an anaerobic hyperthermophilic bacterium known for its high amounts of hydrogen (H2) production. In the current study, the kinetic modeling was applied on the engineered strains of T. maritima that surpassed the natural H2 production limit. The study generated a kinetic model explaining H2 overproduction and predicted a continuous fermentation system. A Leudking-Piret equation-based model predicted that H2 production by Tma200 (0.217 mol-H2 g–1-biomass) and Tma100 (0.147 mol-H2 g–1-biomass) were higher than wild type (0.096 mol-H2 g–1 -biomass) with reduced rates of maltose utilization. …