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 71 for “"mycotoxin"”.
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Identification and Characterization of Novel Mycotoxin Degrading Enzymes
… throughout the agricultural supply chain produce mycotoxins, which are harmful secondary metabolites that aid fungal colonization and contaminate food and feed. Consuming mycotoxin-contaminated products poses health risks to humans and animals. While several strategies to limit mycotoxin …
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Nutritional strategies to control mycotoxin damages in swine
Mycotoxins are contaminants of agricultural products both in the field and during storage and can enter the food chain through contaminated cereals and foods (milk, meat, and eggs) obtained from animals fed mycotoxin contaminated feeds. Mycotoxins are genotoxic carcinogens that cause health and …
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Physiological consequences of exposure to heat stress and the mycotoxin zearalenone
… are associated with elevated concentrations of mycotoxins in cereal grains. Mycotoxins are problematic because, at sufficient concentrations, they induce specific, toxic effects. Zearalenone is one such mycotoxin that is particularly problematic for swine, as it is a potent phytoestrogen. As …
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Fusarium in winter wheat: mycotoxin accumulation in straw and a survey of roots
… head blight (FHB). In recent years, Fusarium mycotoxins, primarily deoxynivalenol (DON), 3-acetyldeoxynivalenol (3ADON), and 15-acetyldeoxynivaleol (15ADON), have been detected in conjunction with wheat straw, a substrate commonly used for livestock bedding. Little is known about how or why …
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Strategies to detoxify the mycotoxin deoxynivalenol and improve food safety in the U.S.
Mycotoxins are toxic secondary metabolites produced by fungi that are a threat to the health of humans and domestic animals. The most important mycotoxin in the U.S. is deoxynivalenol (DON), which causes symptoms such as vomiting, feed refusal, and weight loss in farm animals. The fungus Fusarium …
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Determination of farm animal exposure to multiple mycotoxins and assessment of novel mycotoxin binders
… and quality, but also produce vast number of mycotoxins, which pose serious adverse health effects in human and animals. The overall aim of this thesis was to determine exposure of farm animals to multiple mycotoxins and to assess wide range of products, for their potential to bind mycotoxins. …
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Post-harvest strategies for the prevention of fungal growth and mycotoxin production in corn
… that could completely inhibit both growth and mycotoxin production (fumonisin B1 and aflatoxin B1) at levels that were still sensorially acceptable. The phenolic compounds only significantly reduced aflatoxin B1 and fumonisin B1 production but did not affect growth.
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Development of multi-mycotoxin UHPLC-MS/MS methods and application to oat and beer samples
… for the identification and quantitation of 42 mycotoxins in unprocessed oat grains intended for human consumption. The method included all the mycotoxins listed under the current European legislation as well as a wide range of analytes of emerging toxicological interest. A rapid, …
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The influence of strongly coloured foodstuffs on the performance of rapid on-site mycotoxin tests
Mycotoxines zijn secundaire metabolieten geproduceerd door schimmels, die veelvuldig als contaminanten in voedsel aanwezig zijn. Bij inname kunnen ze acuut-toxische of chronisch-toxische effecten (zoals carcinogene, teratogene en oestrogene) teweegbrengen bij mens en dier. Omwille van de …
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Reduction of the mycotoxin deoxynivalenol in barley ethanol co-products using trichothecene 3-O-acetyltransferases
… zeae¬) produces a dangerous trichothecene mycotoxin called deoxynivalenol (DON) and causes a devastating disease of barley (Hordeum vulgare L.) called Fusarium head blight (FHB). Food and feed products derived from barley, such as dried distillers grains with solubles (DDGS), may be …
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Effects of phytase and mycotoxin control strategies in nursery pig diets and determining finishing pig lysine requirements
… 4,318 pigs was conducted to evaluate dietary mycotoxin control strategies on nursery pig performance and blood measures. Experiment 1 determined the available phosphorus (aP) release of GraINzyme phytase in nursery pigs. Increasing phytase from 150 to 1,500 FTU/kg in phosphorus deficient diets …
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Mycotoxin health risk assessment modelling among maize-subsistence farmers living in Centane, Eastern Cape Province, South Africa
Harmful mycotoxins such as fumonisin B (FB), deoxynivalenol (DON), and zearalenone (ZEA), produced by ubiquitous food-borne fungal species, are known to contaminate maize crops from subsistence farming areas in Centane, Eastern Cape Province (EC), South Africa. The daily consumption of home-grown …
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Stink bug-Fusarium interactions and mitigation of associated mycotoxin contamination of corn in the mid-Atlantic, U.S.
… reductions in grain quality including increased mycotoxin concentrations. Prior research on native and invasive stink bugs has focused on understanding their biology, the damage they cause, and elucidating effective and economic management strategies. However, few studies examined the potential …
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Evaluation of Mycotoxin Accumulation and Bran Thickness Between Red and White Wheat (Triticum Aestivum L.) Near-Isogenic Lines
… the predominant Fusiarium Head Blight (FHB) mycotoxin, deoxynivalenol (DON) accumulates primarily in the bran layer of kernels, the bran may be a significant source of DON, especially in products made using white wheat. Moreover, differences in bran characteristics between white and red …
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Contributing factors to child stunting in Guatemala: A systems analysis focused on enteric disease transmission and mycotoxin exposure
"Child stunting -- low height-for-age -- is a United Nation's indicator for chronic malnutrition that has been linked to both acute and chronic health problems. Data from Guatemala suggests for children under five years of age, 49% are classified as stunted. This dissertation tests the following …
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Food safety through fungal disease and mycotoxin mitigation on dairy farms: From field to feed and the rumen
… caused by fungi and their resulting toxins (mycotoxins). Fungicides work on the corn plant in the field to halt fungus growth, while AD such as clay and yeast work in the rumen to mitigate the negative effects associated with the consumption of mycotoxins on WPCS and other feedstuffs. This …
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Characterization and management of major fungal diseases and mycotoxin contamination of grain sorghum in the mid-Atlantic U.S.
… and the grain mold complex, which includes mycotoxin-producing Fusarium spp., limit the yield and quality of grain sorghum in humid climates worldwide. A majority of U.S. grain sorghum production is in arid regions, and management strategies have not been developed for the mid-Atlantic U.S. …
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DNA as a Catalyst and as a Sensor: Investigating the Structure of the Ty1 Retrotransposition Intermediate and the Utility of DNA -Based Biosensors
… acid enzyme. The targets for our sensors are mycotoxins, which are secondary metabolites of fungi. Mycotoxins have been found in crops during harvesting and storage. Consumption of mycotoxin-contaminated crops can lead to toxic effects in humans and animals, making it necessary to survey crops …
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Mycotoxins Risk in Maize Fields in Relation to Insect and Edaphic Factors in South Dakota
<p>Mycotoxins can occur at concentrations that are above the tolerance level recommended for human and animal consumption in conventional and Bt maize hybrids. The relationship of insect abundance, insect kernel damage and edaphic factors with mycotoxin concentrations in conventional and Bt maize …
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