Index Catalog // ScholarsArchive@OSU

Prevalence and Fate of Antibiotic-resistant E. coli in Municipal Wastewater Treatment Plants across Oregon

Creator:: Khorshidi Zadeh, Marjan
Abstract:: Wastewater treatment plants are considered one of the main sources and reservoirs of antimicrobial resistance (AMR). This study investigated the prevalence of 8 different phenotypes of AMR, multi-drug resistant (MDR), and extended-spectrum beta-lactamases (ESBL) producing E. coli in 17 wastewater treatment plants across Oregon in winter and summer of 2019...
Resource Type:: Masters Thesis
Full Text:: . Title: Prevalence and Fate of Antibiotic-resistant E. coli in Municipal Wastewater Treatment Plants

Enrichment Isolation of Brettanomyces Yeasts to Probe the Relationship Between Vineyard and Winery Populations

Creator:: Pigao, Kevin E.
Abstract:: The budding yeast Brettanomyces bruxellensis has the potential to spoil fermented beverages and cause financial losses, but also contribute positively to certain products such as Lambic beer. It is most notorious for causing “Brett” spoilage of wine, which is characterized by undesirable aromas such as “bandaid” and “barnyard”, therefore most...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Kevin E. Pigao for

Analysis of Alternative Donor Breast Milk Pasteurization Techniques and Their Impact on Bile Salt-Stimulated Lipase Activity

Creator:: Victor, Ashley F.
Abstract:: While breast milk is considered the best nourishment for newborns, they have a lowered ability to digest the fat rich liquid due to decreased lipase secretion for the first few months after birth. To offset this, breast milk itself contains Bile Salt-Stimulated Lipase (BSSL) which significantly heightens fat digestion ability....
Resource Type:: Honors College Thesis
Full Text:: Irradiation Corresponding e-mail address: ashleyvictor16@gmail.com ©Copyright by

Antibiotic Resistance in Septic Sludge and Receiving Environments of Ho Chi Minh City, Vietnam

Creator:: Schutzius, Genevieve Conyers
Abstract:: Approximately ninety percent of urban Vietnamese households are connected to septic tanks, from which up to three-quarters of the sludge is reported to be dumped into waterways in residential areas. Vietnam has a considerable prevalence of antibiotic misuse and resultant antibiotic-resistant bacteria (ARB) in the human microbiome. Due to the...
Resource Type:: Masters Thesis
Full Text:: city (p > 0.05, one-way ANOVA). The susceptibility of E. coli isolated from sludge and soil (n = 104

Survival of Listeria monocytogenes, Salmonella spp., and Staphylococcus aureus in raw yellowfin tuna during refrigerated and frozen storage

Creator:: Mou, Jing
Abstract:: The consumption of seafood in the United States has increased rapidly in recent years due to high quality protein and health benefits of seafood. Seafood can be a carrier for bacteria normally distributed in the marine environment and, in some cases, can be contaminated by human pathogens. Therefore, there is...
Resource Type:: Masters Thesis
Full Text:: samples were considered acceptable quality (APC < 107 CFU/g, E. coli < 3 MPN/g) with most samples (93.3

Investigating the Impact of Temperature and Air Quality on Human Health in At-Risk Populations

Creator:: Evoy, Richard E.
Abstract:: Climate change is causing people around the world to experience extreme temperature and air pollution events such as wildfires more frequently, and for longer periods of time. Extreme heat events have been widely associated with an increased risk of emergency room visits, occupational heat-related injuries and illnesses, and mortality overall...
Resource Type:: Dissertation
Full Text:: Richie E. Evoy, MPH, conceptualized and designed the research, collected and analyzed the data, and

Development of High-Throughput Screening Methods to Determine Efficacy of “Clean-Label” Antifungals for Application on Cheese

Creator:: Jensen, Kristen
Abstract:: Cheese has been produced since ancient times and continues to be an important nutrient-dense staple in many diets around the world. Cheese quality is of high importance to consumers, and it is important for cheese producers to establish process controls to prevent and control cheese spoilage. Fungal spoilage is of...
Resource Type:: Masters Thesis
Full Text:: work. Additionally, to Dr. Joy Waite-Cusic for her constant assistance and much needed emotional

The Role of Bone Marrow Adipose Tissue in Bone Loss During Spaceflight and Simulated Spaceflight in Rodents

Creator:: Keune, Jessica Ann
Abstract:: The reduction in mechanical load imparted on the body during spaceflight presents unique physiological challenges. One detrimental and seemingly unavoidable response to microgravity is rapid bone loss. This adaptation is hazardous not only to astronaut health, but to the success of long-duration exploration-class missions. Skeletal adaptation to spaceflight in astronauts...
Resource Type:: Dissertation
Full Text:: . Donald Jump, Dr. Adam Branscum and Dr. Joy Waite-Cusic – for contributing their time, advice and

Growth of Staphylococcus aureus of enterotoxin production in pre-cooked tuna meat

Creator:: Wu, Xulei
Abstract:: Staphylococcus aureus is a human pathogen capable of producing enterotoxins causing staphylococcal food poisoning, one of the most economically important foodborne diseases in the U.S. This pathogen may be introduced to pre-cooked tuna meat used for the production of canned tuna because significant manual handling occurs after cooking of the...
Resource Type:: Masters Thesis
Full Text:: . Lisbeth Goddik, Dr. Joy Waite-Cusic, and Dr. Thomas Savage, for their valuable suggestions and kind help

Impact of terroir on cheddar cheese flavor and the influence of farm-to-farm variability, commingling, and pasteurization.

Creator:: Turbes, Gregory S.
Abstract:: The concept of terroir is commonly used as marketing tool to highlight unique characteristics of regional food products, however there is little scientific evidence of terroir pertaining to cheese. The purpose of this research was to investigate the potential impact of milk origin, pasteurization, and commingling on the sensorial, chemical,...
Resource Type:: Masters Thesis
Full Text:: compound analysis and statistical evaluation. Dr. Joy Waite-Cusic assisted with microbial examination. Dr

Metabolic effects of consumption of quercetin, ellagic acid, cherry, and apple phytochemical extracts in high-fat fed mice

Creator:: Smith, Sarah M.
Abstract:: Metabolic improvements and changes in gene expression were measured in mice fed polyphenol-rich extracts derived from apples and sweet cherries, and the common phytochemicals, quercetin and ellagic acid. Polyphenol-rich extracts were produced by solid phase extraction and column chromatography. Extracts and purified compounds were mixed into a high-fat (HF, 60%...
Resource Type:: Masters Thesis

Effects of Whey Protein Isolate on the Human Gut Microbiota and Intestinal Function in Older Adults

Creator:: Rackerby, Bryna
Abstract:: Whey protein is a functional food comprised of numerous bioactive peptides and proteins, including glycomacropeptide (GMP), a hydrophilic casein peptide that separates with the whey fraction during cheesemaking. GMP has a unique amino acid composition, making it a viable nutritional therapy in disorders where certain amino acids are implicated, while...
Resource Type:: Masters Thesis
Full Text:: Bobe, Dr. Joy Waite- Cusic, and Dr. Lisbeth Goddik, without whom neither I nor my project would have

Application of Antimicrobial Substance in Depuration for Decreasing Vibrio Parahaemolyticus Contamination in the Pacific Oysters (Crassostrea gigas)

Creator:: Shen, Xiaoye
Abstract:: Vibrio parahaemolyticus is the leading cause of foodborne illnesses associated with seafood consumption. Consuming raw or undercooked seafood contaminated with V. parahaemolyticus can result in development of acute gastroenteritis with symptoms of nausea, vomiting, abdominal cramping and watery diarrhea within 24 hours of infection. Illness is usually self-limited and lasts...
Resource Type:: Masters Thesis
Full Text:: . Waite- Cusic, and Dr, Hermes, for spending time review my thesis and providing critical suggestions

Species- and Temporal-Specific Coral Microbiome Fluctuations in Response to a Natural Bleaching Event

Creator:: Ewton, Erica M.
Abstract:: Corals provide a diversity of ecosystem services, are among the most biologically diverse ecosystems on Earth, and directly support ~500 million people globally; however, corals are increasingly experiencing significant threats and are undergoing severe bleaching events as the result of the warming climate. Using a two-year data set surrounding a...
Resource Type:: Masters Thesis

The Inhibitory Activity of Essential Oil Constituents Against Clostridium perfringens Type A Isolates

Creator:: Alanazi, Saud
Abstract:: C. perfringens type A isolates are the causative agents of C. perfringens type A food poisoning (FP) and non-food-borne (NFB) human gastrointestinal diseases. In this study, we evaluated the antimicrobial effect of essential oil constituents (cinnamaldehyde, eugenol, allyl isothiocyanate (AITC), and carvacrol) against C. perfringens FP and NFB isolates grown...
Resource Type:: Masters Thesis
Full Text:: domestic animals. Among five types (A-E), type A strains of C. perfringens are considered as the main

Immunomodulatory Actions of Bovine Whey Protein Isolates, Glycomacropeptide, and Their Digests: Insights from Macrophage and Human Studies

Creator:: Olsen, Wyatt
Abstract:: Whey protein isolate (WPI) and glycomacropeptide (GMP) have shown potential immunomodulatory properties. In this study, we investigated their effects on pro-inflammatory cytokine secretion using both in vitro and in vivo models. In LPS-stimulated THP-1-derived macrophages, digested WPI and GMP reduced cytokine expression, while whole GMP increased secretion. The in human...
Resource Type:: Masters Thesis
Full Text:: for providing the intestinal digest samples and writing support, and Sam Adler and Joy Waite-Cusic

Self-perceived health and chronic conditions among users of supplements with and without botanical ingredients: findings from the 2009-2014 National Health and Nutrition Examination Surveys

Creator:: Alonso Street, Ellen M.
Abstract:: Objective: To describe associations between self-reported general health status, chronic conditions, and use of supplements containing botanicals (SCB) and describe reasons for use among U.S. adult supplement users. Design: Cross-sectional analysis using data from the 2009-2014 National Health and Nutrition Examination Survey (NHANES). Information on self-reported dietary supplement use and...
Resource Type:: Masters Thesis
Full Text:: would like Dr. Joy Waite-Cusic for agreeing to be my Graduate Representative throughout the evolution

Analysis of Intact Glycomacropeptide Derived from Bovine Kappa-casein in Whey Protein Isolate and Intestinal Digesta

Creator:: Qu, Yunyao
Abstract:: Kappa-casein glycomacropeptide (CMP), a 64-amino-acid peptide, is released from kappa-casein after rennet treatment and is one of the major peptides in whey protein isolate (WPI). CMP has anti-inflammatory and antibacterial activities. CMP has two major amino acid sequences with different modifications including glycosylation, phosphorylation and oxidation. However, no previous work...
Resource Type:: Masters Thesis
Full Text:: pandemic. I’m deeply indebted to my thesis committee of Dr. Lisbeth Goddik, Dr. Joy Waite-Cusic and Dr

Effects of 12 months of voluntary alcohol self-administration on intracortical bone remodeling in a rhesus macaque model

Creator:: Gaddini, Gino W.
Abstract:: Background: Alcohol is a nonessential nutrient widely consumed throughout the world. Chronic alcohol abuse is associated with numerous adverse skeletal effects. However, prior to this study, the effects of alcohol abuse on intracortical bone remodeling in an animal model had not been investigated. Reduced intracortical bone remodeling could impair repair...
Resource Type:: Masters Thesis
Full Text:: members of my committee. Dr. Gianni Maddalozzo, Dr. Bo Zhang, and Dr. Joy Waite-Cusic. I am honored to

Impact of Industry Hauling Practices on Raw Milk Quality in a Commercial Setting

Creator:: Darchuk, Emily
Abstract:: Hauling is a critical part of the commercial milk supply chain, yet very few studies have aimed to understand its impact on raw milk quality. Consolidation of the American milk industry has led to the use of tanker trucks for up to 24 h between cleanings, which is the maximum...
Resource Type:: Masters Thesis
Full Text:: . Lisbeth Goddik, Dr. Joy Waite-Cusic and Gina Shellhammer for their support, guidance and most

Antibiotic Resistance in Treated Wastewater Effluent and Biosolids and Fate after Agricultural Reuse

Creator:: Mays, Catherine M.
Abstract:: Conventional wastewater treatment facilities using activated sludge, secondary clarifiers, and chlorine disinfection comprise a large portion of urban wastewater treatment practices in the United States. While highly adept at removing chemical, physical, and numerous biological contaminants, these treatment methods are ineffective at removing contaminants of emerging concern, such as antibiotics...
Resource Type:: Masters Thesis
Full Text:: measured in soil weekly until harvest 77 days after planting. E. coli and enterococci were detectable in

Genetic Diversity and Antimicrobial Resistance of Listeria monocytogenes within Produce Handling and Processing Environments

Creator:: Bland, Rebecca N.
Abstract:: Listeria monocytogenes is a foodborne pathogen frequently associated with food processing environments. Its presence is particularly concerning in facilities handling minimally processed and ready-to-eat foods. Recent outbreaks associated with fresh produce, such as packaged salads and mushrooms, highlight the need to better understand and control these pathogens in environments that...
Resource Type:: Masters Thesis
Full Text:: Kovacevic and Joy Waite-Cusic. Thank you for placing value on what we learn first, only to be followed by

Rheological Techniques in Characterization and Aiding in the Modification of Soft Matter

Creator:: Daalkhaijav, Uranbileg
Abstract:: Soft matter encapsulates a large array of materials ranging from electronics, plastics, and cosmetics to the biofluids making up all organisms. One of the most important properties of these materials that dictate their functionality is their rheology, which is the flow and deformation behavior in response to stress. The focus...
Resource Type:: Dissertation
Full Text:: members of my thesis committee, Professor Joseph McGuire, Professor Joy Waite-Cusic, Professor Dipankar

Inactivation of Clostridium perfringens in Meat Products

Creator:: Alnoman, Maryam M.
Abstract:: Clostridium perfringens type A strains are one of the main causative agents of gastrointestinal (GI) diseases in human and can cause both food poisoning (FP) and non-food-borne (NFB) diseases. Several factors contribute to the pathogenesis of C. perfringens type A strains including the wide presence of C. perfringens spores with...
Resource Type:: Dissertation
Full Text:: Waite- Cusic and Dr. Jean Hall, for their guidance, support and encouragement. My sincere thanks

Low-temperature depuration and low-temperature high hydrostatic pressure processing as post-harvest interventions for diminishing Vibrio parahaemolyticus contamination in oysters

Creator:: Phuvasate, Sureerat
Abstract:: Vibrio parahaemolyticus is a leading cause of acute gastroenteritis associated with consumption of seafood, particularly raw oysters. The United States Centers for Disease Control and Prevention (CDC) estimated that 45,000 cases of V. parahaemolyticus infection occur each year in the U.S. A recent CDC report revealed that the incidence of...
Resource Type:: Dissertation
Full Text:: committee members: Dr. Mahfuzur Sarker, Dr. Claudia Häse, Dr. Joy Waite-Cusic, Dr. Mary Cluskey and Dr

Cleaning and Sanitizing Surfaces on Produce Farms: Optimizing What, How, and When

Creator:: Ohman, Erik
Abstract:: Production of fresh produce takes place outdoors, and therefore, is exposed to many routes of contamination (e.g., soil, contaminated water, manure, etc.) by human pathogens. Although precautions are taken to reduce this risk, pathogens can be regularly introduced to produce handling facilities. To manage the risk of cross-contamination from potentially...
Resource Type:: Masters Thesis
Full Text:: through this degree was integral to my success. Secondly, thank you to Dr. Joy Waite-Cusic for the

Prevalence of Volatile Phenols in Kombucha and Evaluation of Factors that Influence their Formation

Creator:: Navarro, Roxana
Abstract:: Kombucha is a traditional fermented beverage that has become increasingly popular in the United States due to its perceived health benefits and unique flavor profiles. The drivers of kombucha flavor have not been fully characterized, at least in part because it is produced using a complex microbial community, leading to...
Resource Type:: Masters Thesis
Full Text:: and interpretation of this data. Dr Joy Waite-Cusic for all her support both academically and

Production of biohydrodeoxygenated diesel in a novel microscale reactor : Experiments and modeling

Creator:: Atadana, Frederick Williams
Abstract:: Microscale reactors operate in sub millimeter space dimensions. Their small length scale enables process intensification of mass, heat and momentum transport that influence reaction rates. Hence it's possible to observe the true intrinsic reaction kinetics occurring for a set of reactions. In this work a novel microscale reactor for producing...
Resource Type:: Dissertation
Full Text:: ............................................................................ 243 APENDIX E: Carbon Balance

A Promising Approach for Preventing of Diet-Induced Obesity and Fatty Liver Using Tetrahydroxanthohumol, A Synthetic Derivative of Xanthohumol

Creator:: Zhang, Yang
Abstract:: Obesity and metabolic syndrome (MetS) affect over 1.9 billion adults and 12.7 million youth in the US. If all of today’s obese American youth become obese adults, the total societal costs over their lifetime may exceed $1.1 trillion. We show that feeding rodents a high-fat diet supplemented with xanthohumol (XN)...
Resource Type:: Dissertation
Full Text:: . To the rest of my committee, Drs. Thomas Sharpton, Fred Stevens, Charlotte Wickham, and Joy Waite

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