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Showing 1 to 20 of 30 for “"Aflatoxins"”.
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Development of a novel monoclonal antibody-based immunoaffinity column for the detction of aflatoxins
… to bind sufficiently better to all four main aflatoxins and ochratoxin A than other antibodies already on the market. Past studies have shown how useful these antibodies can be when used as diagnostic tools, such as in an enzyme linked immunoabsorbent assay, (Candlish, 1984, Prasertsilpa, …
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Study of degradation of aflatoxins after sonication and their determination by HPLC-QqQ-MS
Οι αφλατοξίνες (AFs) είναι φυσικώς απαντώμενοι, τοξικοί, θερμικώς σταθεροί, δευτερογενείς μεταβολίτες που παράγονται από στελέχη μυκήτων, κυρίως του γένους Aspergillus. Η παρουσία τους σε μεγάλη ποικιλία αγροδιατροφικών προϊόντων αποτελεί απειλή για την ασφάλεια των τροφίμων, με αυστηρά ρυθμιστικά …
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The ontogeny of the immune response to sheep erythrocytes and resistance to aflatoxins in chickens
Experiments were conducted to study the ontogeny, kinetics, and the influence of aflatoxin B1 on antibody response to sheep erythrocyte (SRBC) antigen in White Leghorn chickens. In the first experiment, chickens from the parental lines and reciprocal crosses between them were fed diets containing …
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Environmental Degradation of Aflatoxins and Genetic Diversity of Aspergillus Section Flavi with a Focus on Mozambique
Aflatoxins are potent hepatotoxic, carcinogenic, genotoxic secondary metabolites produced by species in Aspergillus section Flavi that contaminate foods and feeds worldwide. Aflatoxin contamination of staple crops is endemic in Mozambique, and the country has one of the highest rates of liver …
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Human aflatoxin exposure in south-western Ethiopia assessed using serum biomarkers: A thesis submitted in partial fulfilment of the requirements for the Degree of Master of Science at Lincoln University
Aflatoxins are secondary metabolites produced by the fungi Aspergillus flavus and A. parasiticus. Consumption of aflatoxin-contaminated food can cause hepatocellular carcinoma, immune suppression, child growth impairment, and death. The study aimed to assess aflatoxin exposure in South-western …
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Effects of Storage Conditions of Aspergillus Growth and Aflatoxin Production in Peanuts. A Study in Ghana
… leguminous crop is frequently contaminated with aflatoxins, which are secondary metabolites of some Aspergillus fungi, mostly Aspergillus. flavus and Aspergillus parasiticus. Aflatoxins in foods are known to cause liver cancer, stunted growth in children, immune system disorders and economic …
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Application of intense pulsed light for surface sterilization and food quality improvement
… contamination and selected mold metabolites (aflatoxins). Flashblast™ light was found to be highly effective in inactivating vegetative cells of E. coli, S. aureus, B. cereus and B. subtilis. Bacilli and A. niger spores were also susceptible to Flashblast light at somewhat higher fluences. …
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Characterization and Application of Peanut Root Extracts
… mass spectrometry, (3) test for the presence of aflatoxins in the extracts, (4) test peanut root extract in food model system for oxidation reduction capabilities, and (5) Testing peanut root extract's ability to decrease protein oxidation in cell culture. Crude peanut root extracts have high …
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AFlatoxin residues in edible tissue of poultry in Zambia
The aflatoxins, toxins produced by the fungus Aspergillus flavus, have been detected in both imported as well as locally grown maize in Zambia.The problem of toxicity caused by the ingestion of aflatoxin-contaminated maize was approached by determining the levels of residues in edible tissue of …
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AFlatoxin residues in edible tissue of poultry in Zambia
The aflatoxins, toxins produced by the fungus Aspergillus flavus, have been detected in both imported as well as locally grown maize in Zambia.The problem of toxicity caused by the ingestion of aflatoxin-contaminated maize was approached by determining the levels of residues in edible tissue of …
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Molecular and bio-analytical characterisation as a means to understand genetic diversity within Kenyan Aspergillus flavus strains
… of S-morphotype, but produced both aflatoxins B and G. Coconut agar medium (CAM) assay, TLC, HPLC and LCMS/MS analyses confirmed the presence or absence of aflatoxins in selected toxigenic and atoxigenic isolates. qPCR analysis revealed aflP, aflS, aflR and aflO transcripts as the …
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ΜΕΛΕΤΗ ΤΩΝ ΦΥΣΙΚΟΧΗΜΙΚΩΝ ΙΔΙΟΤΗΤΩΝ ΚΑΙ ΤΗΣ ΜΙΚΡΟΒΙΑΚΗΣ ΧΛΩΡΙΔΑΣ ΤΟΥ ΤΥΡΙΟΥ ΚΟΠΑΝΙΣΤΗ-ΧΡΗΣΙΜΟΠΟΙΗΣΗ ΚΑΘΑΡΩΝ ΜΙΚΡΟΒΙΑΚΩΝ ΚΑΛΛΙΕΡΓΕΙΩΝ
… ASPERGILLUS WERE FOUND, THAT DIDN'T PRODUCE ANY AFLATOXINS. 4. IT'S POSSIBLE THE SHAPING AND PACKING OF KOPANISTI CHEESE IN LOW WEIGHT PIECES, TO ENSURE ITS HYGIENIC PRESERVATION AND TOFACILITATE MARKET-CONSUMPTION. 5 . NEW TECHNOLOGY FOR THE PRODUCTION OF KOPANISTI MAY BE ACCOMPLISHED BY USING …
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Determination of farm animal exposure to multiple mycotoxins and assessment of novel mycotoxin binders
… products with potential to bind or inactivate aflatoxins, DON and ZEN have been identified and characterised. These products have the potential as future technological feed additives, to reduce farm animal exposure to mycotoxins.<br/>
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Mid-Infrared Spectral Characterization of Aflatoxin Contamination in Peanuts
… secondary metabolites of certain fungi, namely aflatoxins present a great health hazard when exposed either at low levels for prolonged times (carcinogenic) or at high levels at once (poisonous). It is important to develop an accurate and rapid measurement technique to trace the aflatoxin and/or …
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Demand for certified aflatoxin-free grains
… unsafe food is through toxic contaminants like aflatoxins. Aflatoxins are a family of carcinogenic toxins found commonly in agricultural crops in warm and humid regions, and chronic exposure can result in liver cancer, lung cancer, growth retardation, immunosuppression among others. A warming …
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Mycotoxins in indoor environments. Determination using mass spectrometry.
… genotoxic (e. g. sterigmatocystin and aflatoxins produced mainly by Aspergillus spp. including A. versicolor and A. flavus), or immunosuppressive and neurotoxic (e. g. gliotoxin produced by Penicillium spp. and Aspergillus spp. e. g. A. fumigatus). Airborne mycotoxins have been …
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Maize Transformation for Resistance to Aspergillus Flavus
… in the field and may also have reduced levels of aflatoxins.
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Diabetes and obesity as risk factors for the development of Hepatocellular carcinoma in the hispanic population
… alcohol abuse and environmental exposure to aflatoxins. The prevalence and mortality from HCC is rising in the U.S. In the U.S, Hispanics have a 2.7 times higher risk for HCC development than non-Hispanic whites and the highest mortality rate next to Asian population. The reason for this …
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Preliminary investigation of the natural contamination of agricultural crops with selected mycotoxins in northern rural South Africa (Limpopo and Mpumalanga Provinces)
… with mycotoxins, particularly fumonisins and aflatoxins impacts adversely on production, food safety and food security. Mycotoxins are toxic natural food-borne compounds which frequently contaminate agricultural produce worldwide. They are hazardous to humans and animals and result in …
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Stereoselectivity, kinetics, and engineering of flavin/deazaflavin oxidoreductases for use in industrial biocatalysis
… hydrides into substrates such as biliverdin, aflatoxins, quinones and fatty acids using the reduced form of the cofactor. Several enzymes in the FDOR-A subgroup were screened for substrate range and activity, leading to the identification of two particularly promiscuous enzymes MSMEG_2027 and …
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