Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 443955
Title Practical Experiences with an Extended Screening Strategy for Genetically Modified Organisms (GMOs) in Real-Life Samples
Author(s) Scholtens-Toma, I.M.J.; Laurensse, E.; Molenaar, B.; Zaaijer, S.; Gaballo, H.M.S.; Boleij, P.A.; Bak, A.; Kok, E.J.
Source Journal of Agricultural and Food Chemistry 61 (2013)38. - ISSN 0021-8561 - p. 9097 - 9109.
DOI https://doi.org/10.1021/jf4018146
Department(s) RIKILT - Business Unit Safety & Health
Rikilt B&T Novel Foods en Agroketens
BU Authenticity & Bioassays
Publication type Refereed Article in a scientific journal
Publication year 2013
Keyword(s) modified maize - reference molecules - quantitation - validation
Abstract Nowadays most animal feed products imported into Europe have a GMO (genetically modified organism) label. This means that they contain European Union (EU)-authorized GMOs. For enforcement of these labeling requirements, it is necessary, with the rising number of EU-authorized GMOs, to perform an increasing number of analyses. In addition to this, it is necessary to test products for the potential presence of EU-unauthorized GMOs. Analysis for EU-authorized and -unauthorized GMOs in animal feed has thus become laborious and expensive. Initial screening steps may reduce the number of GMO identification methods that need to be applied, but with the increasing diversity also screening with GMO elements has become more complex. For the present study, the application of an informative detailed 24-element screening and subsequent identification strategy was applied in 50 animal feed samples. Almost all feed samples were labeled as containing GMO-derived materials. The main goal of the study was therefore to investigate if a detailed screening strategy would reduce the number of subsequent identification analyses. An additional goal was to test the samples in this way for the potential presence of EU-unauthorized GMOs. Finally, to test the robustness of the approach, eight of the samples were tested in a concise interlaboratory study. No significant differences were found between the results of the two laboratories.
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