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 73 for “"foodborne pathogens"”.
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Transcriptional stress response in foodborne pathogens
… The application of molecular methods targeting foodborne pathogens provides genetic profiling and targeted intervention methods. Whole-genome sequencing (WGS) provides information on the genomic uniqueness of specific pathogens and is being implemented in epidemiological investigations. …
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Inactivation of foodborne pathogens by fruit wines
… possess bactericidal properties on a number of pathogens in vitro, suggesting possible health benefits that may be derived from microbiological safety. This study investigated the bactericidal effects in wines made from fruits other than grape. The foodborne pathogens Escherichia coli O157:H7, …
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Characterisation of bacteriophage dynamics associated with foodborne pathogens
… by host factors and acute events such as foodborne infections. This thesis explores the ecological roles and therapeutic potential of phages in the gut, with a particular focus on phage-bacteria interactions involving foodborne pathogens. Using models that incorporate phage interactions …
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Foodborne pathogens in poultry production and post-harvest control
… (HACCP) Protocols. On-farm reduction of these pathogens will assist processors in reducing positive carcasses at the plant.;A skin attachment model was used to examine the ability of ZnCl 2 to reverse or inhibit Salmonella attachment to broiler skin. In reversal experiments, skin samples were …
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In vitro model development for novel prevention measures against foodborne pathogens
Foodborne disease prevention can benefit from improved antimicrobial applications and targeted approaches to investigating phenomena that drive the presence and absence of pathogens in our foods. The use of suboptimal methodologies for these investigations remains a hurdle to furthering …
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Evaluating Risks and Mitigation Measures for Foodborne Pathogens on Harvest Bags
Tree fruit growers need information on pathogen dynamics following harvest bags contamination to determine effective sanitation interventions for decontaminating these surfaces. Therefore, the objectives of this research were (i) to determine the survival of generic E. coli, Salmonella, and L. …
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On-chip parallel detection of foodborne pathogens using loop-mediated isothermal amplification
… worlds. Rapid and accurate detection of pathogens is especially important for control and treatment of foodborne diseases. According to estimates issued by the Center for Disease Control and Prevention, one out of six Americans will be sick during this year due to consumption of …
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Fate of Foodborne Pathogens During Osmotic Dehydration and Subsequent Storage of Apples
… Parameters associated with decreased survival of pathogens, and therefore, improve product safety, include increasing temperature and time of processing and increasing concentration of CaCl₂. However, E. coli O157:H7 and Salmonella in artificially contaminated apple slices, survived osmotic …
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Use of High Pressure Processing to Reduce Foodborne Pathogens in Coconut Water
Juices have been implicated in numerous foodborne outbreaks over the last couple of decades. The FDA requires a 5-log10 reduction in juice products, which is most commonly achieved through pasteurization. However, pasteurization deteriorates some sensorial properties and nutritive value. Coconut …
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Intervention Strategies to Reduce Foodborne Pathogens in Poultry During Grow-out and Processing
Several foodborne pathogens like Salmonella spp., Campylobacter jejuni and Clostridium perfringens can occasionally be traced to poultry sources. The development of intervention strategies that are applicable to different stages of poultry production can help lessen the level of these pathogens in …
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Factors Associated with Foodborne Pathogens and Fecal Indicator Organisms in Virginia Agricultural Soils
Prior research reveals foodborne pathogens, as well as enteric bacteria, can thrive in agricultural soils. Understanding how macro- and micronutrients, as well as meteorological factors and observational factors, impact pathogen prevalence may promote a better understanding of how pathogens persist …
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Antimicrobial efficacy of nisin, oregano and ultrasound treatments against foodborne pathogens in ready-to-eat vegetables
Submitted in fulfillment of the academic requirements for the Master of Applied Sciences in Food Science and Technology degree at the Department of Biotechnology and Food Science, Faculty of Applied Sciences Durban University of Technology, Durban, 2020.
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Examining cross contamination pathways for foodborne pathogens in a retail deli environment using an abiotic surrogate
… microorganisms from these surfaces. Three common foodborne bacteria (E. coli O157:H7,Salmonella enterica ser. Enteritidis, Listeria monocytogenes, Listeria innocua) were inoculated on 2 by 2 stainless steel coupons alone and with GloGermTM . There was no significant difference found (p > 0.05) …
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Association of foodborne pathogens with Capsicum annuum fruit and evaluation of the fruit for antimicrobial compounds
… outbreak implicating jalapeño as a vehicle for foodborne illness. Hot peppers contain many compounds thought to possess antimicrobial characteristics. This research was conducted to provide more information on the interactions of pathogenic bacteria and jalapeño peppers, as well as to identify …
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Far-UVC light: A promising approach to controlling foodborne pathogens on food-contact surfaces and ready-to-eat-meat
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2026-05-01
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Development of miniaturized, cost- and time-effective high-throughput screening of antimicrobial treatments against foodborne pathogens on meat matrices
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2025-12-01
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The Use of Lactic Acid Bacteria to Control the Growth of Foodborne Pathogens on Fresh-Cut Fruits and Sprout Vegetables
… for the growth of microorganisms, including foodborne pathogens. The germination conditions of sprout vegetables consisting of relatively high temperatures and humidity, low light and abundance of nutrients are also conducive to the proliferation of foodborne pathogens. Recent outbreaks and …
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Evaluation of Peanut Skin Extract, Grape Seed Extract, and Grape Seed Extract Fractions to Reduce Populations of Select Foodborne Pathogens
… oligomers components. Growth curves of all four pathogens inoculated in the monomer and oligomer fractions were compared using the BioScreen method. Oligomers inhibited growth of L. monocytogenes, S. aureus, and E. coli O157:H7 while monomers inhibited growth of S. Typhimurium. These results …
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Effect of concentration of glutaraldehyde and glyoxal on binding lysozyme to zein based films to control foodborne pathogens in tomatoes
… zein films are also tested against selected pathogens (Salmonella Newport and Listeria monocytogenes). Developed zein based film is tested against inoculated tomatoes to determine the efficacy of the films in reducing the pathogen population. The inoculated tomatoes are stored at room …
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Use of plant-derived essential oil compounds and naturally-occurring apple flavor compounds to control foodborne pathogens in apple juice
… some of these compounds are effective against foodborne pathogens, their strong aroma and "spicy" flavor are not compatible with the flavor of juice. The purpose of this research was to evaluate the antimicrobial activity of three EO compounds (thymol, eugenol, and trans-cinnamaldehyde) alone …
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