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zearalenone/maïs
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Zearalenone Removal from Corn Oil by an Enzymatic Strategy.
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The estrogen-like mycotoxin zearalenone (ZEN) is one of the most widely distributed contaminants especially in maize and its commodities, such as corn oil. ZEN degrading enzymes possess the potential for counteracting the negative effect of ZEN and its associated high safety risk in corn oil.
Molecular reaction mechanism for elimination of zearalenone during simulated alkali neutralization process of corn oil.
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Zearalenone (ZEN) is one of the most widely distributed harmful mycotoxins produced by Fusarium species, especially deposited in corn oil. In this study, we systematically tracked the changes of ZEN in the refining of corn oil, and especially during neutralization process. An alkali neutralization
Effect of zearalenone on some physiological processes of maize seeds (Zea mays L var Suwan composite).
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Physiological processes of maize seeds (Zea mays L var Suwan composite) were found to be affected by five different concentrations (linear relationship between 100 and 2,000 μ/L) of zearalenone and duration of soaking le 20 h. Inhibitions in seed germination (14-58 %), shoot length (16-61 %), root
Fusaria and Fusarium toxins in New Zealand maize plants.
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A time course study was made of the development of Fusarium infection and the appearance of the three Fusarium toxins, nivalenol (NV), deoxynivalenol (DON) and zearalenone (ZEN), in various fractions of maize plants from two sites in New Zealand, one in the Manawatu region and one in the Waikato.
Photochemical trans-/cis-isomerization and quantitation of zearalenone in edible oils.
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The emphasis of the present work was to investigate the photochemical conversion of trans- to cis-zearalenone in edible oils under real-life conditions. For quantitation purposes a cis-zearalenone standard was synthesized and characterized for its identity and purity (≥95%) by (1)H NMR, X-ray
The effect of neonatal exposure to diethylstilbestrol, genistein, and zearalenone on pituitary responsiveness and sexually dimorphic nucleus volume in the castrated adult rat.
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The neonatal hormone environment determines the sexually differentiated pattern of brain growth. Estrogens, derived from intracerebral aromatization of testosterone, promote male sexual central nervous system (CNS) development. Developing animals may also encounter estrogens from plant, fungal, and
Effects of zearalenone on in utero development in rats.
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Zearalenone (ZE), an estrogenic mycotoxin produced by Fusarium graminearum or F. roseum, is one of the most common contaminants of cereal grains world-wide. The objective of this study was to determine the effects of ZE on in utero development of rats. Pregnant female Charles River Sprague-Dawley
Gene expression profile and toxic effects in human bronchial epithelial cells exposed to zearalenone.
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Zearalenone (ZEA), a mycoestrogen produced by Fusarium fungal species, is mainly found in cereal crops such as maize, wheat and barley. Although ZEA has been reported to be present in air, little is known about the health risk or the molecular basis of action when lung cells are exposed to ZEA. As
Effect of grape seed extract on maternal toxicity and in utero development in mice treated with zearalenone.
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The aims of this study were to determine the polyphone content of grape seed extract (GSE) and to assess their protective effects against zearalenone (ZEN)-induced maternal toxicity and in utero development defects in mice. Five groups of pregnant mice were treated orally during days 6-13 of
A high pressure liquid chromatographic method for the quantitation of sub-microgram amounts of zearalenone (F-2) in agricultural products.
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A highly sensitive and reliable method for the quantitation of sub-microgram quantitaties of zearalenone (F-2) residues in corn, corn oil and mixed feed is described. The isolation of this mycotoxin from a mixed solvent extract involves partitioning of the alkali soluble components from a chloroform
Assessment of the estrogenic effects of zearalenone after treatment with ozone utilizing the mouse uterine weight bioassay.
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The ability of ozone gas (O3) to detoxify zearalenone (ZEN), a commonly occurring estrogenic mycotoxin, was assessed utilizing the mouse uterine weight bioassay. Solutions containing 12 ppm ZEN in water were ozonated for varying time periods (0, 0.5, and 5 min), then extracted with chloroform and
Inhibition of plant cell membrane transport phenomena induced by zearalenone (F-2).
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Zearalenone (F-2), an estrogenic factor produced by a number of Fusarium spp., stimulates a leakage of electrolytes, β-cyanin and aminoacids from three plant tissues. F-2 inhibits rubidium uptake in roots of Zea mays L. and Beta vulgaris L. var. rubra. However the effect in the latter tissue is
The fate of the fusarium mycotoxin zearalenone in maize cell suspension cultures.
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The fusarium mycotoxin zearalenone was transformed in cell suspension cultures of Zea mays giving α- and β-zearalenol and the β-D-glu cos ides of zearalenone and α- and β-zearalenol. The structure of zearalenone-4-β-D-glucopyranoside was determined by liquid - chromatography-mass spectrometry and
Dietary exposure to mycotoxin zearalenone (ZEA) during post-implantation adversely affects placental development in mice.
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Zearalenone (ZEA) is a common food contaminant (ppb-ppm) derived from Fusarium fungi. With its estrogenicity and potential chronic exposure, ZEA poses a risk to pregnancy. Our previous studies implied post-implantational lethality by ZEA. Since a functional placenta is essential for fetal
Preliminary evaluation of influence of zearalenone on cocultures of granulosa and internal theca cells of ovarian follicles in bitches in in vitro culture.
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Zearalenone (ZEA) is an undesirable substance in feed materials and feed of plant origin. It is an example of the micotoxin that causes disturbances in the functioning of the reproductive system. The wide range of plant compounds in pet food means that ZEA may frequently have a negative effect on
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