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Levy, W. ; Schramm, K.-W. ; Mertes, F. ; Henkelmann, B. ; Maywald, M.* ; Uciechowski, P.* ; Loa, A.* ; Haedrich, J.* ; Thiem, I.* ; Hollert, H.* ; Goerlich, R.* ; Bernsmann, T.* ; Rink, L.*

Development and validation of a ready to use cryo-EROD assay for the standardized screening of dioxins and dioxin-like compounds in foodstuffs.

Food Chem. Toxicol. 122, 206-214 (2018)
Postprint DOI PMC
Open Access Green
Recent European regulations have indicated the need for new bioanalytical screening methods capable of monitoring dioxin and dioxin-like compounds in foodstuffs and environmental samples, cost-effectively and with a quicker turnaround. Cryo-cells of the hepatic H4IIE line preserved in 96-well plates were exposed to sample extracts prepared from various foodstuffs and analysed for their content of dioxins and dioxin-like compounds by means of the 7-Ethoxyresorufin-O-Deethylase (EROD)-assay in two laboratories. Assay data were compared between both laboratories and results from instrumental analysis used as a confirmatory method. Additionally, cut-off values for the different studied matrices were derived. The current European regulation regarding methods of analysis for the control of foodstuffs was applied with the aim of determining the feasibility of the cryo-methodology. Results obtained in both laboratories were in congruence with the required validation parameters of the Commission Regulation (EU) No 2017/644. Cut-off values should be established matrix-dependent to reduce the rate of false compliant results and to keep the rate of false non-compliant results under control. In summary, the ready-to-use cryo-assay method for the bioanalytical screening of foodstuffs in control laboratories without cell-culture facilities has successfully proven to be accurate, far quicker and more cost effective than current methods.
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Publication type Article: Journal article
Document type Scientific Article
Corresponding Author
Keywords Bio-screening Methods ; Cryo-erod Assay ; Effect-based Methods ; Dioxins ; Foodstuffs; Dibenzo-p-dioxins; Dietary-intake; Polychlorinated Biphenyl; In-vitro; Mixtures; Pcbs; Toxicity; Bioassay; Samples; Food
ISSN (print) / ISBN 0278-6915
e-ISSN 0278-6915
Journal Food and Chemical Toxicology
Quellenangaben Volume: 122, Issue: , Pages: 206-214 Article Number: , Supplement: ,
Publisher Elsevier
Publishing Place The Boulevard, Langford Lane, Kidlington, Oxford Ox5 1gb, England
Non-patent literature Publications
Reviewing status Peer reviewed
Institute(s) PPM-MEX-Molecular EXposomics (MEX)