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Biochemical production from engineered Bacillus species

Guo, Na (2023-12-12) ETD File Embargoed

Microbial production of biochemicals has gained significant attention due to increasing global concern regarding the depletion of fossil resources. As prominent workhorses in microbial fermentations, Bacillus species have ...

Bioconversion of Corn Stover into Value-Added Chemicals: Dilute Sulfuric Acid Pretreatment, Xylo-Oligosaccharides Production, and Lactic Acid Fermentation

Zhu, Yongming (2005-12-15)

In the first part of this dissertation, dilute-acid pretreatment of corn stover was investigated under high-solids condition using a percolation reactor. High-solids condition in a pretreatment process can lead to high ...

Bioconversion of lignocellulose into acetone-butanol-ethanol (ABE): pretreatment, enzymatic hydrolysis and fermentation

Guan, Wenjian (2016-12-09)

Abstract The objective of the present dissertation is to investigate the bioprocess for the production of acetone-butanol-ethanol (ABE) from lignocellulosic feedstocks via ABE fermentation with solvent-producing ...

Bioconversion of Lignocellulosic Material into Ethanol: Pretreatment, Enzymatic Hydrolysis, and Ethanol Fermentation

Kim, Tae (2004-12-15)

Four different novel processes, ammonia recycle percolation (ARP), low-liquid ARP, two-stage (hot water-ARP) percolation, and soaking in aqueous ammonia (SAA) at room/moderate temperature, were investigated for pretreatment ...

Bioconversion of Pulp and Paper Mills Sludge and Prehydrolysate Stream into Ethanol and Cellulase Enzyme

Kang, Li (2011-05-17)

In the first part of this dissertation, two different types of paper mill sludges, primary sludge and recycle sludge, were evaluated as a feedstock for bioconversion to ethanol. The sludges were first subjected to enzymatic ...

Biocrude production from biomass and mixed plastics via hydrothermal liquefaction for fuel and chemicals

Rahman, Tawsif (2022-12-05) ETD File Embargoed

Hydrothermal liquefaction (HTL) is a promising technology to convert organic feedstocks into value-added fuel precursors known as biocrude, solids (hydrochar), and gaseous byproducts. The HTL process can efficiently break ...

Biodecolorization of Paper Mills Wastewater Using Anaerobic Composting

Mendez-Sanchez, Noemi (2009-08-04)

This research studied the feasibility of using anaerobic composting for decolorizing effluents in the pulp and paper industry. While color is regarded as an aesthetic problem, there are several adverse effects associated ...

A Biodegradable Microparticle Vaccine Platform using Femtomole Peptide Antigen Doses to Elicit T-cell Immunity against Chlamydia abortus

Chowdhury, Erfan (2016-12-19)

Successful vaccination against Chlamydia spp. has remained elusive, largely due to a lack of vaccine platforms for the required Th1 immunization. Modeling of T helper cell immunity indicates that Th1 immunity requires ...

Biodiversity and Phylogenetics of Metazoan Parasites Infecting Freshwater Turtles

Dutton, Haley (2020-04-20)

There are 356 extant turtle species (Testudines), including 60 polytypic taxa that add 122 subspecies. Among the more diverse groups of metazoan parasites that infect turtles are the turtle blood flukes (TBFs) (Digenea: ...

Biodiversity of Metazoan Parasites Infecting Channel Catfish (Ictalurus punctatus), Blue Catfish (Ictalurus furcatus), and C×B Hybrid Catfish (Female Ictalurus punctatus × Male Ictalurus furcatus) in Earthen Pond Aquaculture

Truong, Triet (2011-08-04)

This 1-year in-pond study documents the metazoan parasite biodiversity in channel catfish (Ictalurus punctatus), blue catfish (Ictalurus furcatus), and C×B hybrid catfish (female Ictalurus punctatus × male Ictalurus furcatus) ...

Bioeconomic Analysis of Catfish Produced in In-Pond Raceway Systems

Fantini-Hoag, Leticia (2021-11-30)

This dissertation describes catfish production over four-years using In-Pond Raceways Systems (IPRS). This technology consists of a floating raceway (RW) cage placed into an existing pond, which allows for more control of ...

Bioeconomics of Flavobacterium columnare vaccine pond trials for channel catfish Ictalurus punctatus

Malecki, Jillian (2020-05-11)

The US farm-raised catfish industry has had a variety of problems in the last decade, both in production and marketing. Increased disease pressures have come primarily from the ubiquitous pathogens responsible for columnaris ...

Biofilm formation by the fish pathogen Flavobacterium columnare: a quantitative and qualitative study

Cai, Wenlong (2013-04-30)

The objective of this study was to evaluate the effect that temperature, pH, salinity, hardness and carbohydrates have on biofilm formation by the fish pathogen Flavobacterium columnare. Nineteen F. columnare strains, ...

Biofilm formation, virulence attenuation and comparative genomics of the fish pathogen Flavobacterium columnare

Cai, Wenlong (2018-11-27)

Flavobacterium columnare is an important bacterial fish pathogen that causes great economic losses in aquaculture. In this dissertation I aimed at characterizing part of its life cycle including the transition between ...

Biofuel Production from Hydrothermal Liquefaction of Algae and Its Subsequent Upgrading

Shakya, Rajdeep (2017-11-30)

Algae are considered as a promising feedstock for biofuel production. The conversion of algae to biofuel was investigated in this study. The study was concentrated in two main areas: hydrothermal liquefaction of algae into ...

Biogeochemical Effects of Silvicultural Management on Intermittent Streamside Management Zones in the Coastal Plain of Alabama

Colson, Christopher (2008-05-15)

Three experimental intermittent watersheds in the Coastal Plain of Alabama were subjected to varying Streamside Management Zone (SMZ) silvicultural treatments in 2000: reference, partial cut, and clearcut. Biomass and ...

Biogeochemical Influence of Chinese Privet in Riparian Forests in West Georgia and the Influence of Oyster Harvesting in Apalachicola Bay, Florida

Mitchell, Jennifer (2009-05-04)

In the Southeastern U.S., urbanization influences nutrient availability, species composition, and water quality among other ecosystem processes. This study examined the influence of invasive species spread, facilitated ...