Rozprawy doktorskie na temat „Food contamination”
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Plummer, Stephanie C. "Food Contamination Narratives in United States News Media". Bowling Green State University / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1237761803.
Pełny tekst źródłaTudor, E. A. "Yeast contamination of meats and processing equipment". Thesis, University of Bath, 1989. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.234640.
Pełny tekst źródłaPastorini, Elisabetta. "Analytical methodologies for evaluating mycotoxin contamination in food safety". Doctoral thesis, La Sapienza, 2006. http://hdl.handle.net/11573/916869.
Pełny tekst źródłaFapohunda, Ajibola Oladapo Idowu. "Bacterial contamination and growth on red meat and fish". Thesis, University of Nottingham, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.321397.
Pełny tekst źródłaGautam, Omprasad. "Food hygiene intervention to improve food hygiene behaviours and reduce food contamination in Nepal : an exploratory trial". Thesis, London School of Hygiene and Tropical Medicine (University of London), 2015. http://researchonline.lshtm.ac.uk/2531624/.
Pełny tekst źródłaRip, Diane. "Sample preparation methods and molecular based detection for the rapid isolation and identification of Listeria monocytogenes in food samples". Thesis, University of the Western Cape, 2006. http://etd.uwc.ac.za/index.php?module=etd&action=viewtitle&id=gen8Srv25Nme4_1346_1255007553.
Pełny tekst źródłaListeria monocytogenes is a Gram-positive bacterium responsible for listeriosis, a food-borne disease, which may result in severe illness and possible death. The importance of L. monocytogenes as a food-borne pathogen has been recognized since the 1980's when a correlation between the cunsumption of contaminated foodstuffs and human listeriosis outbreaks was observed. Listeriosis occurs with the ingestion of contaminated foods. The aim of this study involved developing DNA based methods to aid the food industry for the fast detection of L. monocytogenes in food products. Therefore assays were developed in such a way that they will have potential applications in the food idustry.
Hossain, Rakia. "Safe Food in Bangladesh: Perception and Influences on Safe Food Purchasing". Thesis, Griffith University, 2020. http://hdl.handle.net/10072/395524.
Pełny tekst źródłaThesis (Masters)
Master of Medical Research (MMedRes)
School of Medical Science
Griffith Health
Full Text
Chan, Hon-wing, i 陳漢榮. "Food poisoning outbreaks in Hong Kong resulting from shellfish contamination". Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1996. http://hub.hku.hk/bib/B31253349.
Pełny tekst źródłaChan, Hon-wing. "Food poisoning outbreaks in Hong Kong resulting from shellfish contamination /". Hong Kong : University of Hong Kong, 1996. http://sunzi.lib.hku.hk/hkuto/record.jsp?B17457762.
Pełny tekst źródłaMack, James C. "Policy Implications of Intentional Contamination of the Retail Food Chain". ScholarWorks, 2019. https://scholarworks.waldenu.edu/dissertations/7038.
Pełny tekst źródłaMisner, Scottie, i Evelyn Whitmer. "Food Safety Know-how". College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2006. http://hdl.handle.net/10150/146682.
Pełny tekst źródłaMost of the "bad food" reported illnesses are due to bacterial contamination. Nearly all of these cases can be linked to improper food handling, both in our homes and in restaurants. This article briefly discusses the causes of food contamination and how to handle food safely.
Msuya, Joan. "Food Safety of Homemade Complementary Foods In Morogoro Municipality -Tanzania". The Ohio State University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=osu1471527745.
Pełny tekst źródłaLaws, Jacob. "Conduits of contamination to contemporary food webs of the Norfolk Broads". Thesis, Queen Mary, University of London, 2011. http://qmro.qmul.ac.uk/xmlui/handle/123456789/2424.
Pełny tekst źródłaPisani, L. F. "SERUM AMYLOID A IN RUMINANTS: DIAGNOSTIC VALUE AND FOOD CONTAMINATION ASSESSMENT". Doctoral thesis, Università degli Studi di Milano, 2010. http://hdl.handle.net/2434/150187.
Pełny tekst źródłaCaldwell, Lucius. "The Use of Vinegar Vapor and Post-Harvest Biological Control to Reduce Patulin in Apple Cider". Fogler Library, University of Maine, 2009. http://www.library.umaine.edu/theses/pdf/CaldwellL2009.pdf.
Pełny tekst źródłaSpooner, Ashley. "The mercury contamination in fish and the subsequent public health effects". [Denver, Colo.] : Regis University, 2006. http://165.236.235.140/lib/ASpooner2007.pdf.
Pełny tekst źródła"May 2006"--T.p. Date of submission on Certification of Authorship page: 4/16/07. Title from PDF title page (viewed on June 26, 2007). Includes bibliographical references.
Weeks, Mark E. "An investigation into the global cellular responses of Listeria monocytogenes during the transition from exponential to stationary growth phase". Thesis, University of Kent, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.268322.
Pełny tekst źródłaDe, Beer H., i C. J. Hugo. "Potential sources of chryseobacterium contamination during poultry processing : a pilot study". Journal for New Generation Sciences, Vol 8, Issue 3: Central University of Technology, Free State, Bloemfontein, 2010. http://hdl.handle.net/11462/566.
Pełny tekst źródłaThe genus Chryseobacterium is often found in food and is regarded as a food spoilage organism. In this study, the source of the chryseobacteria was uncertain. As an exploratory investigation, the potential source of chryseobacterial contamination was determined. Total bacteria counts and yellow-pigmented colony counts were performed. Chryseobacterium species were present on poultry carcasses at all stages of processing. Total Chryseobacterium counts increased from 5.6 to 11.8 % after the brine injection stage. A significant increase in total Chryseobacterium counts (20.0 and 25.2 %) in the processing waters occurred where cutting up of the carcasses was involved. It is speculated that live chickens are the source of contamination.
Pillsbury, Laura Anne. "Food cultures, total diet studies and risk management implications for global food policy and public health /". Connect to this title, 2008. http://scholarworks.umass.edu/theses/157/.
Pełny tekst źródłaYeung, Lau-kong. "Review of food safety policy in Hong Kong : challenges brought by ciguatera on the safe consumption of live reef fish /". View the Table of Contents & Abstract, 2006. http://sunzi.lib.hku.hk/hkuto/record/B37118705.
Pełny tekst źródłaPinegar, Arthur John. "Escherichia coli in retail processed foods : a source of pathogenic strains for man". Thesis, University of Leeds, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.236713.
Pełny tekst źródłaMulroy, Mary Geraldine. "The release of contaminants by leaching from boil-in-bag laminates". Thesis, De Montfort University, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.330115.
Pełny tekst źródłaSantana, Marina Ferreira Mourão. "Effects of microplastics contamination on marine biota". Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/21/21134/tde-20032016-174906/.
Pełny tekst źródłaOs microplásticos (< 5mm) são um dos impactos mais difundidos da sociedade moderna. Aqui, eles foram estudados em ensaios experimentais, considerando diferentes composições de exposição de mexilhões à micro-PVCs. O objetivo foi investigar: sinais fisiológicos de estresse sob exposições aguda e crônica; e transferência, assimilação e retenção de microplásticos em cadeias tróficas. Para avaliar seus potenciais riscos na natureza, a ingestão por mexilhões também foi investigada no Estuário de Santos. As exposições agudas afetaram a fisiologia dos mexilhões, sendo influenciadas pelo tempo e concentração de exposição, e pela presença de aditivos plásticos. Interações entre esses fatores (tempo, concentração e aditivos) foram mais relevantes do que eles individualmente, sugerindo a singularidade dos cenários de poluição. A exposição de longo prazo não afetou os mexilhões, indicando a influência do tempo na aclimatação ao microplástico. O PVC não foi assimilado e retido nas cadeias tróficas, mas biotransferido do tecido das presas para o trato dos predadores, mostrando a influência do estado da presa na efetividade da biotransferência dos microplásticos. Dentre os mexilhões coletados, 75% estavam contaminados, revelando uma importante questão socioambiental. Esse trabalho ilustrou a complexidade dos impactos dos microplásticos para a biota marinha, ressaltando a necessidade de mais estudos sobre seus riscos.
Osman, Nawal. "Assessment of aflatoxin contamination in infant food supplements used in different feeding patterns". Thesis, University of Surrey, 1995. http://epubs.surrey.ac.uk/804386/.
Pełny tekst źródłaShane, Sharon L. "Reported bacterial foodborne outbreaks occurring in institutional settings and group gatherings : United States, 2000 through 2004 /". abstract and full text PDF (free order & download UNR users only), 2006. http://0-gateway.proquest.com.innopac.library.unr.edu/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:1440932.
Pełny tekst źródła"December, 2006." Includes bibliographical references (leaves 90-117). Online version available on the World Wide Web. Library also has microfilm. Ann Arbor, Mich. : ProQuest Information and Learning Company, [2006]. 1 microfilm reel ; 35 mm.
Surendera, Babu Aruna. "Food safety communication in Nevada needs assessment /". abstract and full text PDF (free order & download UNR users only), 2006. http://0-gateway.proquest.com.innopac.library.unr.edu/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:1433410.
Pełny tekst źródłaRuadrew, Sayan. "Characterization of aflatoxin contamination of foods and identification of food components that protect against aflatoxin-mediated toxicity and mutagenicity". Thesis, Glasgow Caledonian University, 2015. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.687407.
Pełny tekst źródłaHe, Lili Lin Mengshi. "Application of surface enhanced Raman spectroscopy to food safety issues". Diss., Columbia, Mo. : University of Missouri--Columbia, 2009. http://hdl.handle.net/10355/6859.
Pełny tekst źródłaOsuagwu, Stanley. "Analyzing Fact Based Preventive Approach to Address Foreign Material Contamination in the Food Industry". Thesis, The George Washington University, 2017. http://pqdtopen.proquest.com/#viewpdf?dispub=10636623.
Pełny tekst źródłaAnalyzing fact based preventive approach to address foreign material contamination in the food industry is a necessary analysis, focused on using statistical evaluations to analyze the disturbing trend of foreign material food recall in the meat and poultry industry today. Even though recalls due to microbiological contaminations and allergens seem to get more media attention, foreign material meat and poultry food contaminations are also on the rise and the market is starting to show disturbing trends of increasing volumes of products that are recalled due to potential adulteration.
Unfortunately, tighter regulatory oversight and new food safety modernization acts have not demonstrated significant success towards reducing the occurrence of these foreign material food recalls. It appears that the incident rates have remained somewhat flat year over year, but the volume of product that are being destroyed due to extraneous material contaminations continues to show exponential increase.
Food producers cannot continue to conduct business as usual in a world that is constantly changing. They must begin to adapt and invest in technology and in fact based foreign material prevention initiatives, in order to close the disparity in technology between the production equipment and the foreign material detection equipment.
The outcome of my research has suggested that maintaining a status quo to foreign material prevention has not proven successful in limiting recall occurrences in the food industry. The research supports that a switch to fact based prevention approach can yield superior outcomes that are beneficial to both the food manufacturers and food consumers.
Swanton, Kerry Vivienne. "Food safety and waste water reuse : heavy metal contamination in peri-urban Varanasi, India". Thesis, Imperial College London, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.428327.
Pełny tekst źródłaVatanyoopaisarn, Savitri. "Formation of biofilms on stainless steel by Pseudomonas fluorescens and Listeria monocytogenes". Thesis, University of Nottingham, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.310957.
Pełny tekst źródłaChung, Sunjung. "Effect of Poor Sanitation Procedures on Cross-Contamination of Animal Species in Ground Meat Products". Chapman University Digital Commons, 2019. https://digitalcommons.chapman.edu/food_science_theses/3.
Pełny tekst źródłaRICCI, MARCO. "Design and Validation of a Microwave Device for Food Contamination Real-time Sensing and Imaging". Doctoral thesis, Politecnico di Torino, 2022. http://hdl.handle.net/11583/2971515.
Pełny tekst źródłaCameron, Michelle. "Impact of low-frequency high-power ultrasound on spoilage and potentially pathogenic dairy microbes". Thesis, Link to the online version, 2007. http://hdl.handle.net/10019/597.
Pełny tekst źródłaLim, Kyungwha. "Reduction of spoilage and pathogenic bacteria on beef products by direct and indirect applications of antimicrobial agents /". free to MU campus, to others for purchase, 2003. http://wwwlib.umi.com/cr/mo/fullcit?p3100061.
Pełny tekst źródłaTrickett, Michelle D. "Investigation of environmental microorganisms associated with the intrinsic microbial contamination of an alcohol-free mouthwash". Huntington, WV : [Marshall University Libraries], 2007. http://www.marshall.edu/etd/descript.asp?ref=810.
Pełny tekst źródłaDelle, Cese Francesca. "EFFECT OF LIQUID CONTAMINATION ON HERMETICITY AND SEAL STRENGTH OF FLEXIBLE POUCHES WITH LLDPE SEALANT". DigitalCommons@CalPoly, 2014. https://digitalcommons.calpoly.edu/theses/1178.
Pełny tekst źródłaDixon, Lorraine Louise. "Microbiological Quality of Toroi: A Māori food delicacy". The University of Waikato, 2007. http://hdl.handle.net/10289/2229.
Pełny tekst źródłaEmara, Hamdy Aly. "Production of aflatoxin by Aspergillus parasiticus and its control". Thesis, University of Stirling, 1996. http://hdl.handle.net/1893/3461.
Pełny tekst źródłaSkillington, Pauline. "Migration of chemicals through coated paperboard for food contact packaging". Thesis, Cape Peninsula University of Technology, 2014. http://hdl.handle.net/20.500.11838/752.
Pełny tekst źródłaPaperboard made from recycled fibres is being used more frequently in direct food packaging applications, in addition to its use as secondary and tertiary packaging. However, recent research has shown that there is a risk that harmful chemicals may migrate from the paperboard into the food. The simplest approach to reducing the migration of these contaminants is the use of barrier films. The barrier efficiencies of these various films can be examined by means of a migration test into a food simulant, followed by extraction in a suitable solvent. The extract can then be analysed by chromatographic techniques such as gas chromatography mass spectrometry (GC-MS) to determine the concentration of the specific contaminants. However on a production level, the availability of this type of highly specialised equipment is limited. A simple, cost effective method is needed to evaluate the barrier properties to specific chemical contaminants. The Heptane Vapour Transmission Rate (HVTR) test is a permeation test method for use at quality control level to determine barrier properties to the migration of organic vapours. The first part of the study focussed on establishing a universal correlation between HVTR and specific migration of diisobutyl phthalate (DiBP), dibutyl phthalate (DBP) and diethylhexyl phthalate (DEHP) that would be applicable to any type of functional barrier. However, experimental data demonstrated this was not possible as the correlation factor linking HVTR to specific migration was largely dependent on the type and morphology of the coating considered. The initial objective of the study was reconsidered in favour of building individual models specific to the nature of the coating and substrate considered. A correlation between HVTR and specific migration of DiBP, DBP and DEHP for a polyvinylidene chloride (PVDC) barrier polymer was constructed by varying the applied coating weight. The vapour transport mechanism for the HVTR test and the specific migration test were found to differ, showing that a direct correlation between HVTR and the specific migration was again not possible. However, an indirect correlation could be made. The HVTR method gives an indication of film integrity, whereas the coating weight could be used as an indicator of the specific migration. The correlation between the coating weight and the specific migration yielded an equation that can be used to calculate the specific migration through the PVDC barrier polymer, provided the quantity of the chemical contaminant originally present in the paperboard was known. This equation was specific to the type of barrier polymer, the specific chemical contaminant as well as the intended shelf-life of the food product to be packaged in the paperboard.
Yeap, Jia Wei. "Inactivation of a Human Norovirus Surrogate by Chlorine Dioxide Gas and Prediction of Human Norovirus Contamination by a Fecal Indicator System". The Ohio State University, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=osu1366640143.
Pełny tekst źródłaRodgers, Svetlana. "Development of a bio-preservation method for extended shelf-life cook-chill systems". Thesis, View thesis, 2003. http://handle.uws.edu.au:8081/1959.7/23237.
Pełny tekst źródłaHahn, Celia. "Review of arsenic contamination and human exposure through water and food in rural areas in Vietnam". Doctoral thesis, Eigenverlag des Forums für Abfallwirtschaft und Altlasten e.V, 2015. https://tud.qucosa.de/id/qucosa%3A29429.
Pełny tekst źródłaHahn, Celia. "Review of arsenic contamination and human exposure through water and food in rural areas in Vietnam". Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-201053.
Pełny tekst źródłaDing, Yajun Mustapha Azlin. "Transfer of Listera monocytogenes and Escherichia coli 0157:H7 during food processing". Diss., Columbia, Mo. : University of Missouri-Columbia, 2008. http://hdl.handle.net/10355/6071.
Pełny tekst źródłaCooper, Robin M. "Development of a Rep-PCR screening assay for enterotoxigenic Bacillus spp. in naturally contaminated food". Virtual Press, 2004. http://liblink.bsu.edu/uhtbin/catkey/1306386.
Pełny tekst źródłaDepartment of Biology
Nigar, Meher. "Studies on the interaction between arsenic (As) and rice varieties which differ in arsenate (As(V)) tolerance". Thesis, Available from the University of Aberdeen Library and Historic Collections Digital Resources, 2009. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?application=DIGITOOL-3&owner=resourcediscovery&custom_att_2=simple_viewer&pid=33413.
Pełny tekst źródłaLambrechts, Andre Albertus. "The efficacy of sanitation on microbiological hazards in ready-to-eat food outlets from selected primary manufacturers in Gauteng Province, South Africa". Thesis, Cape Peninsula University of Technology, 2011. http://hdl.handle.net/20.500.11838/779.
Pełny tekst źródłaThe retail sector in South Africa is increasingly evolving into a dynamic industry, driven by changes in technology, saturating markets and globalisation. A major phenomenon in South Africa has been the evolution of hypermarkets, which sell large quantities of almost all consumer goods on a self-service basis. The South African consumers are becoming increasingly health conscious and, as such, the demand for wellness foods, health and convenience food has escalated. Convenience foods are expected to remain popular with consumers and supermarkets and will therefore increase the amount of ready-to-eat food items offered. As the retail industry has changed over the last two decades, so has the epidemiology of foodborne illnesses, with an increase in the incidence of bacterial infections caused by emerging organisms. In addition, there are certain food safety issues specifically associated with ready-to-eat foods. In recent years, incidences of enteric diseases associated with meat consumption have risen. The emergence of several new foodborne diseases has led to an increased focus attention on the issue of food safety by consumers and the industry. The most commonly implicated foods in these disease outbreaks have been meat and dairy products. The microbial load of eight convenience food manufacturing plants was determined by firstly sampling stainless steel food contact surfaces after they had been cleaned and sanitised at the end of a day‘s shift. The samples were analysed for Total Plate Count (TPC), Escherichia coli, Salmonella species and Staphylococcus aureus and Listeria. The results showed that 59 % of the total areas sampled for TPC failed to comply with the legal requirements for food surfaces specified in the South African Health Act (< 100 cfu.cm-2). Listeria was detected in 23 % of the samples taken and E.coli was found in 1.3 % of the samples, while S. aureus was not detected in any of the samples. Fifty percent of the plants applied conventional cleaning methods for cleaning and sanitation and the remaining 50 % used the low-pressure foam (LPF) method. The bacterial results of the two cleaning methods were statistically compared and a statistically significant difference (P ≤ 0.05) was found between the TPC means of the cleaning methods after cleaning. No statistically significant difference (P > 0.05) was found in terms of the Listeria species counts after both cleaning processes. The LPF method proved to be the superior cleaning option for reducing TPC counts. Secondly surface samples were collected from washed and sanitised dominant hands of food handlers and analysed for the presence of total plate counts, S. aureus and E. coli. The study aimed to evaluate the efficacy of hand washing practices and sanitation before commencing work. A total of 230 samples were collected, involving 100 % of the food handlers in selected convenience food outlets. The highest bacterial count taken from handswas 7.4 x 10-3 cfu.cm-2 and the lowest showed no detectable growth. Forty percent of the TPC analysed complied with the legal limit of < 100 cfu.cm-2 and only 18 % of the food handlers had no detectable bacteria present on their hands. One hand sample tested positive for E. coli, which is generally viewed as an indication of faecal contamination. S. aureus could not be detected on the hands of any of the food handlers. The results of this study indicated that hand hygiene is unsatisfactory and underlined the importance of further training to improve food handlers‘ knowledge of good hand washing practices. The study also aimed to present data on the food hygiene knowledge and practices of food handlers based on a representative sample from convenience food outlets in the Gauteng area. The management, as well as food handlers, were interviewed without prior announcement and managers were interviewed prior to starting their shifts, followed by food handlers, after they had passed through the change room and hand wash facilities. Although the majority of food handlers adhered to basic hygiene principles, the results highlighted a need for proper and continuous training in hygiene practices, not only for food handlers, but also for management. Furthermore, all food handlers should adhere to a formal cleaning schedule and specific courses should be planned for food handlers. Most training is done away from the workplace and the workers might find it difficult to translate theory into practice. Although food safety training programmes are essential, behavioural changes will not occur merely as a result of having received training but rather continuous development of food handlers. In conclusion, the popularity of convenience food is bound to increase with the growing appeal for modern foods. Consumers in South Africa nowadays demand good quality and safe products at a reasonable cost. Due to continuous time constraints, convenience food is the food of the future for the working mother. It is clear that managing foodborne disease is a challenge and an economic problem subject to various constraints. Food safety has too often become a hit-or-miss gamble, with parents obliged to roll the dice when it comes to the safety of their children‘s food and consumers in general. The food industry therefore needs to improve food safety processes to prevent the contamination of foods and use methods to ensure safe food for consumers. Better training, more testing and better methods of tracking food must be utilised to verify that the processes are working. This study endeavoured to add to the understanding and improvement of hygiene processes as well as food handlers‘ practices in the convenience food industry in the Gauteng Province.
Chiang, Yun-en G. "Crisis communication and image repair from a cultural aspect a case study of King Car's image repair program in Taiwan /". Muncie, Ind. : Ball State University, 2009. http://cardinalscholar.bsu.edu/698.
Pełny tekst źródłaMcKinley, Mary Beth. "Addressing Contaminants in Traditional Foods in Alaska: Environmental Justice Framing and Policy Approaches". The University of Montana, 2007. http://etd.lib.umt.edu/theses/available/etd-05142007-071823/.
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