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 16 of 16 for “"microbial safety"”.
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Effects of ultrasonication in combination with selected sanitizer and surfactant on the quality and microbial safety of produce
In the United States, outbreaks of foodborne illnesses caused by pathogenic microorganisms associated with consumption of fresh and fresh-cut produce is a recurring problem. It is estimated that 1 in every 6 US residents contracts a foodborne illness every year. There is an urgent need to develop …
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Investigation of the Interactions Between Sanitizers, Surface Characteristics, Washing Conditions, and Bacteria for Improving Microbial Safety of Fresh Produce
… reduction on cilantro and maintained low microbial growth during storage. The different cell morphological changes of E. coli cells treated with POAA from that of AEW and chlorine indicate that POAA, AEW and chlorine may have different bactericidal mechanisms. The surface roughness value …
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Evaluating microbial safety, postharvest quality, and consumer acceptability of fresh produce engraved with QR codes using a CO₂ laser labeling technology
… known about its effects on postharvest quality, microbial safety, and consumer acceptability. The first chapter of the thesis provides background information on the importance of food traceability, methods of produce labeling, and the potential of new alternative CO₂ LLT. The second research …
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Microbial Safety, Shelf Life Stability, Quality Preservation, and Consumer Acceptance of Vacuum-infused, Irradiated Chicken Breast Meat Treated with Natural Plant Extracts and Organic Acids
… is a safe and effective means of ensuring the safety of both ready-to-cook and ready-to-eat poultry but is not utilized in the United States. This is due, in part, to certain irradiation dose-dependent quality characteristic defects associated with irradiated chicken. Irradiation decreases the …
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Development Of Active Packaging With Antimicrobial Activity
<p>Microbial safety of fresh fruits and vegetables is an increasing concern with any possible recall or outbreaks negatively affecting the entire industry. The interest in the development of active packaging has recently been steadily increasing due to significant concerns about environmental …
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Exploring milk management strategies for improved food safety and health outcomes in the neonate
… medical outcomes. The nutritional, bioactive and microbial properties of milk can be influenced by an array of extrinsic and intrinsic factors. This thesis investigates the influence of two common management practices of milk, in both the bovine and human context, and their subsequent influence on …
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Optimization of the Quality and Safety of Cooked Seafood Products
… parameters that optimize both the quality and microbial safety of the products. To achieve these goals, this study develops mathematical models for the inactivation of Salmonella sp., change in quality attributes, and the product heating profiles during the cooking process for shrimp and …
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Selection of Pathogen Surrogates and Fresh Produce Safety: Implications for Public Health and Irrigation Water Quality Policy
… on plant surfaces is paramount in improving food safety and reducing risk to public health. The objectives of this study were to select environmental E.coli isolates as pathogen surrogates of Salmonella typhimurium and E.coli O157:H7, assess lettuce plant contamination by spray irrigation water, …
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Optimation of Ontaku/ Oshikundu: Pearl millet and sorghum malts quality and conveniet premix development
… process that gives a consistent malt quality and microbial safety. The lack of standard ingredient ratios (flour/meal: malt: water) of brewing. Also, the sedimentation of adjunct particles at the bottom (dreg), thus creating the difference in viscosity of oshikundu. Welldefined fermenting …
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Growth probability of Escherichia coli O157:H7 and Listeria monocytogenes in packaged fresh-cut romaine mix at fluctuating temperatures during simulated transport, retail storage and display
… sale of leafy greens negatively impacts both microbial safety and product quality. Consequently, the effect of fluctuating temperatures on Escherichia coli O157:H7 and Listeria monocytogenes growth in commercially bagged salad greens was assessed during transport, retail storage, and display. …
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Efficacy of selected chemicals and electron beam irradiation for destroying Escherichia coli 0157:H7 and Salmonella on cantaloupe skin
… irradiation has good potential for improving the microbial safety of cantaloupe melons. Further research is needed to determine the effects of these interventions on quality characteristics of melons.</p>
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Association of foodborne pathogens with Capsicum annuum fruit and evaluation of the fruit for antimicrobial compounds
… 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 properties of Capsicum annuum that affect bacterial survival, growth, and …
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Effect of Electrostatic Spraying of Food-Grade Organic and Inorganic Acids, and Grape Seed Extract on Salmonella Typhimurium and Escherichia coli O157:H7 on Spinach and Iceberg Lettuce
<p>The safety of fresh produce is often challenged by the sporadic incidences of outbreaks owing to Salmonella Typhimurium (<em>S</em>.T.) and <em>Escherichia coli </em>O157:H7 (<em>E.c.</em>). Washing and current disinfection strategies do not completely decontaminate leafy greens such as spinach …
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Development of a carrot (Daucus carota) microgreen-based product for use as a supplement in bottled water
… testing confirmed one month of stability and microbial safety under cold storage (4°C) once opened. Nutritional profiling established low fat and carbohydrate content, although vitamin C and electrolyte (sodium) levels were below regulatory thresholds. Sensory evaluation with a …
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Development of a sensor-based rapid microbial testing platform for the Irish meat industry
Microbial spoilage and foodborne diseases cause significant productivity and economic losses for the food industry. There is a need for novel approaches to extend shelf life of products, improve quality and microbial safety, reduce spoilage and waste, and new assessment methods. Traditional methods …