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 293 for “"Listeria"”.
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Development of highly specific monoclonal antibodies to Listeria sp. and Listeria monocytogenes
… monoclonal and polyclonal antibodies against Listeria spp., a selective culture broth, and an immunoassay to enable a 21 hour assay to detect Listeria spp. in foodstuffs. Listeria is a common contaminant of food production. Its hardiness and ability to grow under refrigeration make it a …
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Survival of Listeria monocytogenes, Listeria innocua, and Lactic acid bacteria species in chill brine
Listeria monocytogenes is the major pathogen in ready-to-eat meat products such as deli meats and frankfurters. Contamination can occur via the salt brines that are used to cool thermally processed meats. Both L. monocytogenes and lactic acid bacteria can grow and thrive under these brine …
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Ozone Inactivation of Listeria Monocytogenes
From the comparison of cell inactivation rate and CA and/or SOD activity between wild type and two mutant strains, it was concluded that SOD is an enzyme responsible for ozone resistance. The hypersensitivity of the SOD-negative strain to ozone exposure indicates that L. monocytogenes requires SOD …
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Investigating the Prevalence, Persistence, and Diversity of Listeria monocytogenes and Listeria species in Produce Packinghouses
Listeria monocytogenes has emerged as a food safety concern for a number of produce commodities. While L. monocytogenes contamination can occur throughout the supply chain, contamination from the packinghouse environment represents a particular challenge and has been linked to recalls. This study …
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Application of Bacteriophage in Food Manufacturing Facilities for the Control of Listeria monocytogenes and Listeria sp
… be used to treat and reduce the incidence of Listeria in food manufacturing facilities, and thereby reduce the risk of food products being cross-contaminated with Listeria monocytogenes. Listeria incidence in food manufacturing ready-to-eat environments was surveyed at 31 ready-to-eat (RTE) …
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How did Listeria monocytogenes become pathogenic?
Listeriae are Gram positive, facultative, saprophytic bacteria capable of causing opportunistic infections in humans and animals. This thesis presents three separate lines of inquiries that can lead to the eventual convergence of a global view of Listeria as pathogen in the light of evolution, …
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Interaktion von Listeria monocytogenes mit Endothelzellen
Listeria monocytogenes überwindet endotheliale Barrieren, um eine Meningitis oder Encephalitis auszulösen. Das Hindurchtreten durch diese Barriere könnte über die Invasion von Endothelzellen durch Listerien aus dem Blut und anschließender Freisetzung der Bakterien ins Gehirn erfolgen. In den ersten …
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Interaktion humaner dendritischer Zellen mit Listeria monocytogenes
… dieser Arbeit wurde die Interaktion von DZ mit Listeria monocytogenes untersucht. Es konnte gezeigt werden, dass L. monocytogenes effizient in unreife, humane DZ aufgenommen wird. Die Phagozytoserate von L. monocytogenes unter Zugabe von humanem Plasma war wesentlich höher als im Plasma-freien …
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Copper tolerance of Listeria monocytogenes strain DRDC8.
Listeria monocytogenes is one of the most important food-borne pathogens due to the severity of the disease it can cause. While the virulence factors required for effective colonisation and infection of mammalian hosts have been well described, other genes may modulate disease persistence. For L. …
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How Listeria monocytogenes crosses host cell barriers
Listeria monocytogenes is a bacterial pathogen that causes listeriosis, a severe food-borne illness that can cause severe complications and mortality in immunocompromised or pregnant people. Listeria is able to cross several host barriers to cause severe disease, including the intestinal barrier, …
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Modelling the behaviour of Listeria monocytogenes in cheese
… processing step. In this work, the behaviour of Listeria monocytogenes during cheesemaking and ripening was studied given a milk contamination or surface cross-contamination scenario. When milk was contaminated, L. monocytogenes initiated growth with a different probability during cheesemaking …
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Potential Antimicrobials for Controlling Listeria monocytogenes in Frankfurters
<p>Listeria monocytogenes is a pathogenic microorganism that causes Listeriosis. Listeriosis is a highly mortal disease with approximately 20% mortality rate. Listeria is psychrophilic, therefore it is able to survive in the refrigerator. This affects foods at cool storage such as fresh produce and …
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LncRNA discovery in the Listeria monocytogenes infection model
… and uncover their physiological relevance during Listeria monotocytogenes infection. To this end, an RNA-Seq dataset of Listeria-infected HeLa cells was subjected to several variations of data analysis lncRNA discovery pipelines. Potential lncRNA functioning was hypothesized using the Rinn & Chang …
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The Recovery and Transfer of Aerosolized Listeria Innocua
… a significant public health risk. Pathogenic Listeria monocytogenes can colonize numerous surfaces as well, through direct and indirect cross contamination. The physical environment can also affect the transmission and viability of Listeria (distance from the source, temperature, humidity, air …
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Spontaneous Rosette Formation In Mice Immunized With Listeria Monocytogenes
… study determined the effect of immunization with Listeria monocytogenes upon spontaneous rosette formation (SRF) between BALB/c mouse spleen lymphocytes and C57BL mouse erythrocytes. It was found that SRF in nonimmunized mice ranged from 8 to 20 percent with a mean value of 12.0 + 2.1 percent. …
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Effect of lauric acid and monolaurin on the multiplication of Listeria monocytogenes and Listeria innocua at 10°C in bi-phasic systems.
… tested on growth of three cheesebome strains of Listeria monocytogenes and two strains of L. innocna. The Listeria spp. were grown in Tryptose Soya Yeast Glucose Broth (TSGYB) in shake culture at 10 °C and an initial pH of 7.0. The additives were dissolved in butter oil 10 % (w/v). Lauric …
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