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Dissertations / Theses on the topic 'Food contaminants'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

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1

Lommatzsch, Martin. "Hydrocarbons as food contaminants:." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2018. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-233297.

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The contamination of foods with hydrocarbon mixtures migrating from food contact materials (FCM) was first observed for jute and sisal bags treated with batching oil in the 1990s. Since the millennium, the focus has shifted to printing inks and recycled cardboard packaging as most recognized sources for hydrocarbon contamination from FCM. Mineral oil containing printing inks can either release hydrocarbons directly from the printing of folding boxes into food or indirectly entering the recycling chain of cardboard material by printed products, such as newspapers. The contamination of dry foo

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2

Lu, Qian. "Contaminants in food stuffs." Thesis, Liverpool John Moores University, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.388586.

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3

SANTORO, KARIN. "Microcantilever resonators for biodetection of food contaminants." Doctoral thesis, Politecnico di Torino, 2015. http://hdl.handle.net/11583/2618311.

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The aim of research activity is focussed on the evaluation of microcantilever-based mass sensor performances for biodetection of toxic molecules in food. We investigated the possibility to detect human pathogen bacteria (Salmonella spp.), milk allergens, mycotoxins and carcinogenic anabolic agent in meat. The results in terms of sensitivity and selectivity were compared with traditional analysis protocol and commercially available detection kits. Microcantilever resonators showed a good sensitivity and reproducibility in detecting hazardous compounds to the health in food

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4

Raffael, Barbara. "Analytical strategies to assess chemical migration from food contact materials." Thesis, University of Leeds, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.275763.

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5

Malecha, Michael Markus. "Identification of lubricant contaminants in beverage cans using spectroscopic analysis and chemometrics." Thesis, Cranfield University, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.269638.

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6

Kelly, Barry C. "Bioaccumulation potential of organic contaminants in an Arctic marine food web /." Burnaby B.C. : Simon Fraser University, 2006. http://ir.lib.sfu.ca/handle/1892/2662.

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Thesis (Ph.D.) - Simon Fraser University, 2006.<br>Theses (School of Resource and Environmental Management) / Simon Fraser University. Senior supervisor : Dr. Frank A. P. C. Gobas. Included bibliographical references : leaves 226-248.

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7

Bueno, Hernandez Diana. "Optical and electrochemical sensing methods for the detection of food contaminants." Thesis, Perpignan, 2016. http://www.theses.fr/2016PERP0044/document.

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Un appareil de mesure de la fluorescence, à faible coût et portable a été développé pour quantifier les concentrations d’Ochratoxine A (OTA) dans des échantillons réels. Le système est basé sur l’excitation par une UV-LED à 365 nm et un photo détecteur contrôlé par une interface dans LabVIEW. Aussi, une image capteur, CMOS, contrôlée par une interface conçue dans MATLAB. L’OTA est une molécule naturellement fluorescente. Après excitation par une UV-, l’image de la fluorescence émise est captée par une caméra et traitée en vue de la mesure de la concentration de l’OTA. Le système d’analyse a ét

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8

Fodey, Terence Lee. "New approaches for the production of antibodies to chemical contaminants in food." Thesis, Queen's University Belfast, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.491939.

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The production of antibodies to a veterinary drug requires conjugation of the low molecular weight compound to a larger molecular weight substance (carrier protein) to enable immune recognition. The resulting immunogen is usually mixed with an adjuvant to create a prepnration thnt will elicit a strong and lasting inullune response to the complex when administered to the host animal. Fretmd's adjuvant has been previously used but can produce adverse side effects in the host. A replacement adjuvant for Fretllld's was sought: Montanide ISA 50V was found to be suitable for the production of antibo

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9

Magliulo, Maria <1976&gt. "Innovative immunoassay formats for the detection of food contaminants and pathogenic bacteria." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2007. http://amsdottorato.unibo.it/592/1/Magliulo-tesi.pdf.

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Magliulo, Maria <1976&gt. "Innovative immunoassay formats for the detection of food contaminants and pathogenic bacteria." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2007. http://amsdottorato.unibo.it/592/.

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11

Mulroy, 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.

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12

Thompson, Diana. "A neutron activation method to determine contaminants in plastic packaging used for food." Thesis, Imperial College London, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.299431.

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13

Frizzell, Caroline Margaret. "An investigation of food and feed based mycotoxins as potential endocrine disrupting contaminants." Thesis, Queen's University Belfast, 2014. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.676471.

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Hormones regulate numerous biological processes. Endocrine disrupting compounds (EDCs) are chemicals which are capable of altering normal hormone signaling, and as a result may contribute to a wide range of adverse health effects. Mycotoxins are one group of compounds which remain to be extensively tested for endocrine disruption. These compounds are toxic secondary metabolites of fungi, which are ubiquitous in nature and may be present in the food and feed of humans and animals, respectively. This study has made use of human in vitro systems to assess the impact of mycotoxins on steroid hormo

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14

Celano, Rita. "Development of analytical methodology for determination of emerging contaminants in enviroment and food." Doctoral thesis, Universita degli studi di Salerno, 2015. http://hdl.handle.net/10556/1974.

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2012 - 2013<br>In recent years, fate, occurrence and potential adverse effect of emerging contaminants (ECs) in the environment have received an increased attention by scientific community. The ECs are a broad category of chemicals, mainly organic compounds, that are not currently covered by existing regulations but they may be candidates for future regulation, as they may be potential threats to human health and environmental safety. The ECs are mainly substances of anthropogenic origin, introduced continuously into the environment in large quantities and distributed ubiquitously in the ecosy

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15

Tiggelman, Ineke. "Migration of organic contaminants through paper and plastic packaging." Thesis, Stellenbosch : Stellenbosch University, 2012. http://hdl.handle.net/10019.1/20269.

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Thesis (MSc)--Stellenbosch University, 2012.<br>ENGLISH ABSTRACT: The presence of mineral oils in dry foodstuff was found to originate from the packaging materials, namely, paperboard manufactured from recovered fibres, and these oils subsequently migrate to the foodstuff via the vapour phase. The presence of mineral oils in food is of concern as it originates from the use of paper products not originally intended for food contact applications, i.e., before the paper is subjected to a suitable recycling process. These mineral oils consist of technical grade compounds which may contain ar

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16

Menevseoglu, Ahmed. "METABOLOMICS APPROACH FOR AUTHENTICATION OF PISCO AND DETECTION OF CONTAMINANTS." The Ohio State University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu1574841283680933.

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17

Dumalisile, Pholisa. "Impact of processing temperatures on survival of microbial contaminants from pasteurised milk." Thesis, Stellenbosch : University of Stellenbosch, 2004. http://hdl.handle.net/10019.1/16316.

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Thesis (MScVoedselwet)--University of Stellenbosch, 2004.<br>ENGLISH ABSTRACT: Milk has been identified as having the potential of being a carrier of human pathogens, and it is thus essential to eliminate or reduce the likelihood of milk borne contamination. This problem of milk contamination is generally solved by the process of pasteurisation which is achieved by heating the "raw" material for a sufficient period of time to destroy any pathogenic and spoilage bacteria which may be present at a temperature of below 100°C. Presently, there are two basic methods of pasteurisation in use i

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18

Ricard, Daniel. "Application of a genetic algorithm to calibrate a food web bioaccumulation model of contaminants." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0010/MQ61487.pdf.

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19

Derbyshire, Nicola. "Exploring the application of nucleic acid aptamers for detection of food contaminants and viruses." Thesis, University of Leeds, 2012. http://etheses.whiterose.ac.uk/4136/.

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Use of antibiotic, anti-fungal and anti-parasitic agents is required to protect from infections that can rapidly spread making entire crops unsuitable for human consumption or threaten the health of livestock. However, these agents can have toxic side effects on humans at high concentrations so their residual levels in food are regulated. Their levels are monitored through both random and routine surveillance checks that generate ~ 50 000 samples per year in the UK alone. This is not an easy task because many of these compounds are small molecules that require extensive sample extraction follo

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20

Ayob, K. A. "Development of enzyme-linked immunosorbent assays (ELISAs) for the detection of some food additives, adulterants and contaminants." Thesis, University of Salford, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.234590.

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21

McKinley, 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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The transport of contaminants to the Arctic and their presence in traditional foods in the region is causing concern about potential adverse health impacts resulting from exposure to these globally-borne chemicals. In this study, ten stakeholders in the issue of contaminants in traditional foods in Alaska were interviewed to determine how they define the problem, and in doing so, to determine if they perceive that the situation constitutes an environmental injustice for Alaska Natives. The interview transcripts were analyzed using five sub-frames of the environmental justice framework: distrib

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22

Lam, Andrea Yuen-Kwun. "The effects of microwave heating on the migration of contaminants from plastic into food simulants." Thesis, University of British Columbia, 2006. http://hdl.handle.net/2429/31590.

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Plastic food packaging contains potentially toxic chemicals that are capable of diffusing to the plastic surface through the process of migration, where they can contaminate food (Incarnato et al., 2000). Thus, government regulations require food packaging migration testing to ensure public safety. Standardized migration test methods use conventional ovens to determine the maximum amount of migration that will occur during heating. However, standardized migration tests may not accurately characterize the effects of microwave heating on migration. Studies by Galotto and Guarda (1999, 2004

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23

Phetxumphou, Katherine. "Novel Approaches to Exposure Assessment and Dose Response to Contaminants in Drinking Water and Food." Diss., Virginia Tech, 2018. http://hdl.handle.net/10919/94582.

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In the fields of water safety, food safety, and public communications, the overarching goal is to improve public health. Thus, this dissertation focuses on risk assessment and applying novel methods for exposure assessments and dose responses to contaminants in drinking water and foods. Factors that greatly impact contaminant exposures and human dose response include: population susceptibility (i.e., healthy adults or children), different routes of exposures (i.e., ingestion or inhalation), carrier matrices (i.e., water or food), and intricacies of chemical and biological mixtures. Chemical sp

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Onghena, Matthias. "Study of the possible migration risks of food contact materials for children under 3 years." Doctoral thesis, Universitat Jaume I, 2016. http://hdl.handle.net/10803/400866.

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El Bisfenol-A (BPA) se ha usado durante muchos años como monómero en polímeros de policarbonato (PC) (botellas de agua y comida para niños-biberones) y en resinas tipo epoxi (botes de comida preparada), a partir de los cuales puede liberarse este compuesto a la comida y al agua, lo que constituye la principal fuente de exposición a BPA de los seres humanos. Como consecuencia de sus propiedades como disruptor endocrino, se prohibió su uso en la producción de polímeros para materiales en contacto con comida para niños menores de 3 años (European Commission, Regulation No. 10/2011). Recien

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25

Marshall, Melanie M. "Interactive effects of wastewater effluent on stream food webs." Bowling Green State University / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1563457844184326.

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Choy, Emily Sarah. "Biotransport of organic contaminants and mercury to a coastal food web in the Canadian High Arctic." Thesis, University of Ottawa (Canada), 2009. http://hdl.handle.net/10393/28168.

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Seabird-derived nutrients enhance plant abundance in coastal ecosystems, increasing rates of primary productivity, and indirectly increasing consumer populations. However, at Cape Vera, concentrations of contaminants in the sediment of ponds below nesting colonies of northern fulmars (Fulmarus glacialis) are 10 to 60 times higher than in reference ponds (Blais et al. 2005). This pattern suggests that the colony concentrates hexachlorobenzene (HCB), total mercury (THg), and dichlorodiphenyltrichloroethane (DDT) through guano to pond sediments (Blais et al. 2005). It remains unclear whether the

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27

Gill, Christopher Ellis. "Environmental contaminants, food availability, and reproduction of bald eagles, Haliaeetus leucocephalus, on Vancouver Island, British Columbia." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp03/MQ37537.pdf.

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28

Aston, Deborah Sarah Jane. "A study of inorganic contaminants in recycled paper and board : their potential for migration into food." Thesis, Imperial College London, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.424381.

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29

Seabert, Timothy A. "Dietary Markers and Contaminant Exposures Are Correlated to Wild Food Consumption in Two Northern Ontario First Nations Communities." Thèse, Université d'Ottawa / University of Ottawa, 2012. http://hdl.handle.net/10393/22829.

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First Nations peoples experience many benefits from eating locally-harvested wild foods, but these benefits must be considered along with the potential risks associated with exposure to environmental contaminants. Unlike store-bought foods, wild foods are an important traditional resource and a significant source of dietary protein, essential minerals and polyunsaturated fatty acids, believed to help in the prevention and treatment of obesity and obesity-related diseases such as type-2 diabetes mellitus. Wild foods continue to be an important and healthy food choice for First Nations peoples

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Morton, Mary Josephine. "Development of novel methods for the detection of chemical and microbiological contaminants in the agri-food chain." Thesis, Queen's University Belfast, 2013. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.602684.

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The first aim of this research was to evaluate recently developed biosensors for their potential to detect chemical contaminants, chloramphenicol and/or nitrofuran metabolites and, overall their potential for the food industry in their present form, or with further development. The biosensors evaluated were the dotLab® system (Axela Inc., Toronto, Canada), SPRi-Lab+™ system (Horiba Scientific, Stanmore, UK) and Octet® RED96 system (ForteBio Inc., California, USA). All three were able to detect the chosen chemical contaminants in the form of either single- or multi-analyte detection, or both, w

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Kiyataka, Paulo Henrique Massaharu 1979. "Chumbo, cádmio, mercúrio e arsênio em embalagens poliméricas para alimentos por ICP OES." [s.n.], 2013. http://repositorio.unicamp.br/jspui/handle/REPOSIP/254639.

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Orientador: Juliana Azevedo Lima Pallone<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia de Alimentos<br>Made available in DSpace on 2018-08-21T19:45:14Z (GMT). No. of bitstreams: 1 Kiyataka_PauloHenriqueMassaharu_M.pdf: 790194 bytes, checksum: e0beb44d58dcf269860ae3ea29511114 (MD5) Previous issue date: 2013<br>Resumo: O uso de embalagens poliméricas para contato com alimentos tem crescido nas últimas décadas devido ao aumento do consumo de produtos industrializados. Contaminantes inorgânicos, tais como chumbo (Pb), cádmio (Cd), mercúrio (Hg), e arsênio

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LIN, SHIHKUO. "STUDY OF ENVIRONMENTAL CONTAMINANTS AND VETERINARY DRUGS, RESIDUES THROUGHOUT THE FOOD CHAIN RELATED TO SWINE AND POULTRY, AND EVENTUALLY OTHER SPECIES OF FOOD-PRODUCING ANIMALS." Doctoral thesis, Università degli Studi di Milano, 2020. http://hdl.handle.net/2434/704040.

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La carne e i prodotti a base di carne sono le principali fonti di diete umane. La salute degli animali da produzione alimentare dovrebbe essere adeguatamente monitorata e controllata al fine di ridurre i rischi per la catena alimentare. Gli studi presentati in questa tesi includevano le strategie di (i) valutare l'esito della spedizione del rapporto patologico agli allevamenti di suini di provenienza e (ii) sviluppare il metodo di rilevazione e studiare la prevalenza di contaminanti ambientali e farmaci veterinari nel maiale, vitello, uova di gallina e alimenti per bambini. Nel capitolo 3, abb

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Nyambok, Edward Otieno. "Chemical contaminants in Chinese aquaculture imports, U.S. import security, and exposure assessment amongst vulnerable sub-populations." Diss., Kansas State University, 2011. http://hdl.handle.net/2097/13121.

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Doctor of Philosophy<br>Food Science<br>Justin Kastner<br>Many Chinese aquaculture farmers use unapproved chemicals to treat their fish, many of which are diseased as a result of the country’s poor waste management and environmental practices. During 2006-2007, the United States (U.S.), the European Union, and Japan rejected large amounts of Chinese seafood imports due to the presence of unapproved chemicals or the presence of approved chemicals at concentrations that exceeded permitted levels. This dissertation examines the sources of environmental health and food safety problems in China; it

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34

Duarte, Salles Talita 1985. "Dietary exposure to contaminants during pregnancy and fetal growth." Doctoral thesis, Universitat Pompeu Fabra, 2012. http://hdl.handle.net/10803/104483.

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Introduction: Prenatal exposure to polycyclic aromatic hydrocarbons (PAH) and to acrylamide has been suggested to reduce fetal growth. The role of diet, the main source of exposure to these compounds in the general population, remains uncertain. This thesis aimed to characterize women’s exposure during pregnancy to dietary acrylamide and the genotoxic PAH benzo(a)pyrene [B(a)P], and to assess the effects of prenatal exposure to these compounds on fetal growth indicators. Methods: This thesis was done within two large European population-based cohort studies conducted in Spain and Norway: th

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MARCHESIELLO, WADIR MARIO VALENTINO. "Study and evaluation of key factors in food and environment for human health concerns." Doctoral thesis, Università di Foggia, 2022. https://hdl.handle.net/11369/425287.

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La presente tesi, sviluppata in collaborazione con il Key Laboratory of Natural Resources of the Changbai Mountain and Functional Molecules - Yanbian University Ministry of Education (Yanji City, Jilin) e il centro di analisi BonassisaLab srl (Foggia, Italia), è incentrata sullo sviluppo e l’ottimizzazione di metodi di analisi adatti alla identificazione e quantificazione di contaminanti emergenti in matrici alimentari e ambientali. Un composto può essere definito contaminante emergente se: è apparso solo recentemente, anche grazie allo sviluppo di nuove metodologie analitiche e di indagine; i

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Clarke, Rachel Sarah. "Investigation of the biological effects of mixtures of man-made and natural chemical food contaminants using in vitro bioassays." Thesis, Queen's University Belfast, 2015. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.695302.

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Mycotoxins, heavy metals and pesticides are ubiquitous in the environment, contributing to multiple contamination of foodstuff. However, due to complications of determining their combined toxicity, legal limits of exposure are determined for single compounds, based on long standing toxicological techniques. Governmental regulatory bodies must begin to contemplate how to safeguard the population when such mixtures of contaminants are present in food. The aim of this thesis was to study the interactive and cytotoxic effects .of mixtures of chemical food contaminants when present at their corresp

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Moro, Guidiane. "Qualidade do leite na região nordeste do Rio Grande do Sul: níveis de resíduos de agrotóxicos e medicamentos veterinários." Universidade Federal de Santa Maria, 2012. http://repositorio.ufsm.br/handle/1/10796.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>The use of veterinary drugs a pesticides in a manner not specified in some stage of livestock production can not only be a waste of resources a capital, but mainly, a situation likely risk of environmental contamination a public health. Faced with this concern, milk samples were collected in northeastern Rio Grande do Sul, the collection of milk for residue analysis were collected monthly from February to June, August, September a November 2011, while the samples for analysis quality of milk, collected monthly from February to Sept

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Defois, Clemence. "Etude de l'impact de contaminats chimiques alimentaires sur le microbiote intestinal humain." Thesis, Université Clermont Auvergne‎ (2017-2020), 2017. http://www.theses.fr/2017CLFAS007/document.

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L’exposition aux polluants environnementaux a été associée à de nombreux désordres métaboliques, immunitaires et reproductifs ainsi qu’à divers cancers. De plus en plus de travaux, indiquent que le microbiote intestinal, qui joue un rôle majeur dans l’immunité et le métabolisme de l’hôte, interagit avec les xénobiotiques dont les polluants organiques persistants (POPs) et les contaminants néoformés dans les aliments. Cette interaction peut avoir des conséquences toxicologiques importantes via la modification des fonctions du microbiote intestinal mais également via la métabolisation des xénobi

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Lommatzsch, Martin [Verfasser], Thomas [Akademischer Betreuer] Simat, Thomas [Gutachter] Simat, and Sabrina [Gutachter] Moret. "Hydrocarbons as food contaminants: : Studies on the migration of mineral oil and synthetic hydrocarbons from food contact materials / Martin Lommatzsch ; Gutachter: Thomas Simat, Sabrina Moret ; Betreuer: Thomas Simat." Dresden : Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2018. http://d-nb.info/1154680177/34.

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Pruvost-Couvreur, Manon. "Estimation de l'exposition humaine tout au long de la vie aux contaminants chimiques par l'alimentation. Développement d'une méthodologie et évaluation des conséquences en termes de risques sanitaires." Thesis, Nantes, Ecole nationale vétérinaire, 2020. http://www.theses.fr/2020ONIR147F.

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Apportées par des activités anthropiques ou naturellement présentes dans l'environnement, de nombreuses substances chimiques contaminent nos aliments. Afin d'évaluer le risque chronique associé à l'ingestion de ces substances, le développement d'une méthodologie appropriée s'impose. Dans nos travaux, nous proposons une nouvelle approche permettant d'estimer des trajectoires d'exposition vie-entière à un contaminant chimique à l'échelle individuelle. Cette méthode permet de considérer l'évolution des comportements de consommation au cours de la vie, les variations des contaminations alimentaire

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Coleman, Philip Dennis. "A study of knowledge, attitudes and behaviour with regard to food safety, in the Welsh hospitality and catering industry." Thesis, n.p, 2000. http://ethos.bl.uk/.

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42

Sevenich, Robert [Verfasser], Dietrich [Akademischer Betreuer] Knorr, Richard [Akademischer Betreuer] Stadler, and Cornelia [Gutachter] Rauh. "High pressure processing at ambient and high temperatures and its influence on food processing contaminants, food borne diseases and bacterial spores in model- and real-food systems / Robert Sevenich ; Gutachter: Cornelia Rauh ; Dietrich Knorr, Richard Stadler." Berlin : Technische Universität Berlin, 2016. http://d-nb.info/1156182263/34.

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43

Kopp, Benjamin. "Nouvelles approches en toxicologie prédictive pour l'étude de la toxicité des mélanges de contaminants présents dans l'alimentation française." Thesis, Toulouse 3, 2018. http://www.theses.fr/2018TOU30208.

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A travers leur alimentation, les consommateurs sont exposés à plusieurs substances chimiques simultanément qui peuvent avoir des effets combinés délétères sur la santé. Six mélanges de contaminants alimentaires auxquels la population française est exposée ont été définis en couplant des données individuelles de consommation et de contamination des aliments. L'objectif de cette thèse était d'étudier in vitro les effets génotoxiques de ces mélanges en utilisant de nouvelles approches. L'étude a montré que deux mélanges étaient génotoxiques et mutagènes, à des concentrations où les composés pris

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Kokot-Helbling, Karin Susanne. "Critical kinetic aspects of lipophilic compounds : I. Volatile organic compounds as food contaminants : II. Musk xylene in humans and laboratory animals /." Zürich, 1995. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=11152.

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Kadawathagedara, Manik. "Maternal Diet During Pregnancy and Early Growth : Focus on Diet Duality and Food Chemicals Exposure." Thesis, Université Paris-Saclay (ComUE), 2018. http://www.theses.fr/2018SACLS014/document.

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Introduction Des études épidémiologiques ont montré qu'une restriction nutritionnelle pendant la grossesse pouvait conduire à une réponse adaptative du fœtus conduisant à une altération durable du métabolisme. Ainsi, les enfants nés avec un petit poids de naissance sont plus à risque de développer des maladies cardiovasculaires à l'âge adulte. L'exposition à des contaminants obésogènes pourrait également jouer un rôle dans l'augmentation du risque d'obésité. L’alimentation est une des principales voies d'exposition à ces contaminants. Après une description de la qualité de l’alimentation penda

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Marushka, Lesya. "Fish Consumption and Nutritional Health among First Nations in Canada." Thesis, Université d'Ottawa / University of Ottawa, 2018. http://hdl.handle.net/10393/38453.

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Traditional food is fundamental for the cultural identity, mental and spiritual well-being, and physical and nutritional health of First Nations in Canada. Rapid environment changes including environmental contamination and degradation, climate change, urbanization and industry growth reduce the availability and diversity of traditional foods. This is concomitant with changing lifestyle and an increased prevalence of malnutrition, obesity, diabetes, and cardiovascular diseases. The goal of this thesis is to investigate the roles of traditional fish consumption for First Nations’ health in the

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Planche, Christelle. "Impact de la cuisson et de la digestion sur les micropolluants à risque des produits carnés." Thesis, Clermont-Ferrand 2, 2016. http://www.theses.fr/2016CLF22749/document.

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Au cours de leur élevage, les animaux sont exposés à divers contaminants chimiques, qui peuvent s’accumuler au niveau des tissus animaux et être retrouvés in fine dans les produits carnés consommés par l’Homme, représentant alors un risque pour la santé des consommateurs. L’évaluation de ce risque repose classiquement sur la mesure de teneur en contaminants de la viande fraîche alors que plusieurs travaux suggèrent que seule une fraction de ces contaminants est effectivement assimilée par le consommateur du fait des transformations technologiques comme la cuisson et physiologiques comme la dig

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Alomar, Hussein. "Analyse chimique des résidus des contaminants anthropiques dans les chaines alimentaires : influence du régime alimentaire chez les prédateurs." Thesis, Lyon, 2017. http://www.theses.fr/2017LYSE1211/document.

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Dans ce travail de thèse, nous avons analysé les résidus des plusieurs contaminants anthropiques dans des prédateurs de la chaîne alimentaire aquatique et des proies de la chaîne terrestre. En effet, la loutre, le grand cormoran et le silure sont prédateurs piscivores au sommet de la chaîne alimentaire, les pesticides organochlorés, les PCBs et les éléments traces métalliques (plomb, cadmium, cuivre et mercure) ont été détectés dans tous les foies de ces prédateurs prélevés dans les bassins de la Loire en France. Les PCBs sont les organochlorés les plus répandus dans les trois espèces, suivi d

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Choueiri, Joanna. "Évaluation des expositions humaines aux polluants de l'environnement par l'alimentation." Electronic Thesis or Diss., Université Grenoble Alpes, 2024. http://www.theses.fr/2024GRALS005.

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Les principaux défis liés à l’alimentation comprennent la garantie d'un régime alimentaire optimal sur le plan nutritionnel, en termes de sécurité sanitaire mais aussi en terme d’impact environnemental. En effet, l'alimentation, en tant que composante de l’exposome, est une source majeure d'exposition aux polluants environnementaux pour la population en général. Cette thèse a eu pour objectif d’apporter quelques éléments de réponse sur les défis pré-cités en : (1) développant une méthodologie permettant d’évaluer l'impact de la consommation d'aliments biologiques par rapport aux aliments conve

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Biant, Lucas. "Etude des transferts de masse de contaminants organiques dans les papiers et cartons pour le contact alimentaire." Electronic Thesis or Diss., université Paris-Saclay, 2024. http://www.theses.fr/2024UPASB063.

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Les papiers et cartons (P&C) sont perçus comme une alternative souhaitable aux plastiques pour le contact alimentaire, car ils sont biosourcés, recyclables et recyclés. Cependant, la contamination, apportée par l'impression et le couchage des matériaux d'emballage, combinée à une efficacité de décontamination de la matière recyclée mal évaluée, a entrainé plusieurs alertes sanitaires. L'objectif de la thèse est d'analyser l'origine de l'hétérogénéité de la contamination et les mécanismes de transfert afin de proposer une solution qui limite ces transferts vers les aliments. Pour cela, des

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