نتایج جستجو برای: zearalenone mycotoxin
تعداد نتایج: 3804 فیلتر نتایج به سال:
Introduction: Zearalenone is a mycotoxin compound produced mainly by the Fusarium species of fungi which is present in several types of foods. T he purpose of this study was to determine the zearalenone in raw animal origin food produced in North-West of Iran . Materials and methods: From June to December 2012, a total of 210 samples (containing 70 raw milk, 70 meat and 70 liver) were obtai...
By combining laser fluorimetry with high pressure liquid chromatography, we are able to detect and quantitate the naturally fluorescent mycotoxin, zearalenone, in contaminated corn samples. Experiments with zearalenone standards show a linear fluorimeter response over four orders of magnitude with a detection limit of 300 pg zearalenone injected onto a C,8 reverse phase column. The corn samples...
Zearalenone, a mycotoxin produced by several Fusarium spp., is most commonly found as a contaminant in stored grain and has chronic estrogenic effects on mammals. Zearalenone is a polyketide derived from the sequential condensation of multiple acetate units by a polyketide synthase (PKS), but the genetics of its biosynthesis are not understood. We cloned two genes, designated ZEA1 and ZEA2, whi...
These studies concentrate on the possibility of using selenium ions and/or 24-epibrassinolide at non-toxic levels as protectors of wheat plants against zearalenone, which is a common and widespread mycotoxin. Analysis using the UHPLC-MS technique allowed for identification of grains having the stress-tolerant and stress-sensitive wheat genotype. When germinating in the presence of 30 µM of zear...
Background : Zearalenone is an estrogenic mycotoxin produced by several Fusarium species and is of particular interest because of its widespread occurrence and strong estrogenic effects. Wheat and its flour is amongst the most important food and feeds sources that may become contaminated with zearalenone. Therefore, this study was carried out to determine the zearalenone concentration in wheat ...
Genotoxic effects of the mycotoxin Zearalenone (ZEN) were evaluated on albino mice. The investigation was assessed using 4 criteria: chromosome aberrations in bone marrow and spermatocytes of adult male mice; chromosome analysis and teratological effects of mice embryos. Zearalenone was administrated to both adult males and pregnant females with 2 doses level (5 microg x kg(-1) and 10 microg x ...
introduction: zearalenone is a mycotoxin compound produced mainly by the fusarium species of fungi which is present in several types of foods. t he purpose of this study was to determine the zearalenone in raw animal origin food produced in north-west of iran . materials and methods: from june to december 2012, a total of 210 samples (containing 70 raw milk, 70 meat and 70 liver) were obtained ...
Mycotoxins are toxic secondary metabolites of fungi that contaminate a large variety of foods and have toxic effects on humans. The best protection against mycotoxins is to monitor their presence in food. This paper shows the screening results of mycotoxins present in 76 samples of different groups of grain foods. Samples of grain food were analyzed for contamination with aflatoxins, ochratoxin...
Zearalenone (ZEA) is a mycotoxin produced by some Fusarium species in food and feed. The toxicity of ZEA and its metabolites is related to the chemical structure of the mycotoxin, which is similar to naturally occurring oestrogens. Currently, there is increasing awareness of the presence of fungi and their toxic metabolites in the aquatic environment. One of the sources of these compounds are t...
OBJECTIVE To test the hypothesis that human puberty timing can be advanced by environmental estrogen exposure. STUDY DESIGN We analyzed serum mycoestrogen contamination via high-performance liquid chromatography (HPLC) in 32 girls affected by central precocious puberty (CPP) and in 31 healthy female control subjects. All 32 patients received triptorelin (TR) for more than 12 months after diag...
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