Results 141 to 150 of about 1,710 (175)

Zearalenon in Lebensmitteln

Mycotoxin Research, 2005
Im Rahmen eines Fusarienforschungvorhabens wurden Analyseverfahren fur Zearalenon auf der Basis von ELISA, HPLC-FLD und LC-MS/MS MS/MS validiert. Bislang wurden 4556 Lebensmittel auf den Gehalt an Zearalenon untersucht. 84% der Maismehle und 53% Maisgriese weisen eine mittlere und 95 Maiskeimol eine hohe Zearalenonbelastung auf.
O. Kappenstein, A. Brockmeyer, R. Dietrich, V. Curtui, H. Klaffke, J. Lepschy, E. Märtlbauer, E. Schneider, C. Seidler, G. Thielert, E. Uslenber, R. Weber, J. Wolff   +12 more
openaire   +1 more source

Synthesis of (±)-zearalenone

Tetrahedron, 1987
The aliphatic portion of (±)-zearalenone has been synthesised by a new simple route starting from 2,3-dihydropyran and 2-acetyl-γ-butyrolactone by employing dithiane for C-C bond formation. The final condensation of this segment with the aromatic part and subseqnet transformations led to (±)-zearalenone.
A.V. Rama Rao, M.N. Deshmukh, G.V.M. Sharma   +2 more
openaire   +1 more source

Toxicokinetic Studies in Piglets Reveal Age-Related Differences in Systemic Exposure to Zearalenone, Zearalenone-14-Glucoside, and Zearalenone-14-Sulfate

Journal of Agricultural and Food Chemistry, 2020
Juveniles are considered as one of the most vulnerable population groups concerning mycotoxins and their modified forms. The weaning stage is a particularly vulnerable period in the life of mammals, reflected in intestinal and immune dysfunction. The current study investigated the toxicokinetic (TK) characteristics of zearalenone (ZEN), zearalenone-14 ...
Amelie Catteuw, Mathias Devreese, Siegrid De Baere, Gunther Antonissen, Bart Huybrechts, Lada Ivanova, Silvio Uhlig, Ann Martens, Sarah De Saeger, Marthe De Boevre, Siska Croubels   +10 more
openaire   +2 more sources

Zearalenone: Undesirable Substance

2009
The presence of toxic or undesired substances in plant material can disturb homeostasis in both humans and animals (Massart et al. 2008; Shephard 2008b). These toxins enter the organism via the gastrointestinal tract, resulting in numerous adverse consequences (Cavret and Lecoeur 2006; Sergent et al. 2008).
Maciej Gajęcki, Magdalena Gajęcka, Ewa Jakimiuk, Łukasz Zielonka, Kazimierz Obremski   +4 more
openaire   +1 more source

Allyl Derivatives of Zearalenone

Journal of Pharmaceutical Sciences, 1980
The Claisen rearrangement of 4-O-allylzearalenone led to only one principal product, which was identified as 3-allylzearalenone with the aid of photochemical isomerization and PMR spectroscopy. This general method is useful for distinguishing 3-substituted zearalenone isomers from 5-substituted isomers.
openaire   +2 more sources

Physiologically Based Pharmacokinetics of Zearalenone

Journal of Toxicology and Environmental Health, Part A, 2009
The objectives of this study were to (1) develop physiologically based pharmacokinetic (PBPK) models for zearalenone following intravenous (i.v.) and oral (p.o.) dosing in rats and (2) predict concentrations in humans via interspecies scaling. The model for i.v.
Beom Soo, Shin, Seok Hyun, Hong, Jürgen B, Bulitta, Jong Bong, Lee, Sang Wook, Hwang, Hyoung Jun, Kim, Seung Du, Yang, Hae-Seong, Yoon, Do Jung, Kim, Byung Mu, Lee, Sun Dong, Yoo   +10 more
openaire   +2 more sources

Effects of Processing on Zearalenone

2002
Zearalenone (ZEN), a common contaminant of all major cereal grains worldwide, is produced by some plant pathogenic molds including Fusarium graminearum and F. culmorum. The biological activity of this mycotoxin is mainly attributed to its estrogenic activity that modulates/disrupts endocrine function in animals and possibly humans.
Dojin, Ryu, Lauren S, Jackson, Lloyd B, Bullerman   +2 more
openaire   +2 more sources

Urinary zearalenone measured with ELISA as a biomarker of zearalenone exposure in pigs

Mycotoxin Research, 2014
The suitability to assess zearalenone (ZEA) exposure in pigs of a commercial ELISA kit for ZEA analysis in urine was tested. A daily dose of 0, 5, 10, 20 and 40 μg synthetic ZEA per kilogram BW was administered via the feed to four gilts per dose group, and after 3 and after 7 days of ZEA intake, urine samples were assayed with the ELISA which has a ...
A, Gutzwiller, J L, Gafner, P, Silacci
openaire   +2 more sources

[Zearalenone in food].

Mycotoxin research, 2013
The research project "Methods of Analysis and occurrence of important Fusarium toxins (deoxynivalenol and zearalenone) as well as the intake of these toxins by the German consumer" supported by the Federal Ministry of Consumer Protection, Food and Agriculture (BMVEL) is processed by the institutions mentioned above. This work represents a comprehensive
O, Kappenstein, A, Brockmeyer, R, Dietrich, V, Curtui, H, Klaffke, J, Lepschy, E, Märtlbauer, E, Schneider, C, Seidler, G, Thielert, E, Uslenber, R, Weber, J, Wolff   +12 more
openaire   +1 more source

Effect of zearalenone on dairy cows

American Journal of Veterinary Research, 1986
SUMMARY Doses of 99% pure zearalenone (0.0, 31.25, 62.5, 125.0, 250.0, or 500.0 mg) in gelatin capsules were given once a day per os to 18 nonpregnant, nonlactating, multiparous dairy cows for 2 consecutive estrous cycles. There was no effect (P < 0.10) on serum progesterone concentrations, rbc, wbc, pcv, hemoglobin, and estrous cycle length ...
G A, Weaver, H J, Kurtz, J C, Behrens, T S, Robison, B E, Seguin, F Y, Bates, C J, Mirocha   +6 more
openaire   +2 more sources