Occurrence of photoinitiator type contaminants in oat flakes from Czech market

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22330%2F22%3A43925471" target="_blank" >RIV/60461373:22330/22:43925471 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Occurrence of photoinitiator type contaminants in oat flakes from Czech market

Original language description

Photoinitiators are highly photoactive compounds that are able to absorb UV radiation and start polymerization reaction and are commonly used during UV curing of printing inks. Modern photoinitiators are often used during printed food packaging production. However, these substances can migrate into the food inside the packaging. Toxicity of these substances was not yet fully evaluated and they possibly degrade into many compounds for which significant toxicity cannot be ruled out. It is therefore important to monitor the presence of these substances in food products. In this work the presence of 10 analytes in oatflakes and its packaging was evaluated. These included photoinitiators, co-initiators, their degradation products and a plasticizer diethylhexyl maleate. Photoinitiators in the packaging were determined after their migration from packaging into food simulants. For extraction a modified QuEChERS method was used followed by analysis by ultra-high performance liquid chromatography with tandem mass spectrometric detection. Recovery of the method was 77-119 % and repeatability lower than 12 %. For majority of analytes the limit of quantification of 2 ppb was reached. Oatflakes samples from Czech market were analyzed for the presence of analytes. Most frequently detected analytes were benzophenone and 4-methylbenzophenone. Frequent detection of benzophenone allowed for statistical evaluation of the influence the type of packaging has on the concentration of benzophenone in oatflakes. The detected analytes did not exceed legislatory limits except one case when diethylhexyl maleate was detected at 39 ppb level. In parallel, migration of analytes from the packaging materials was measured for all the analytes. Benzophenone was also detected most frequently in food packaging samples. Based on these results, the influence of packaging material on the amount of benzophenone in oatflakes could be evaluated.

Czech name

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Czech description

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Type

O - Miscellaneous

CEP classification

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OECD FORD branch

30304 - Public and environmental health

Project

<a href="/en/project/LM2018100" target="_blank" >LM2018100: Infrastructure for Promoting Metrology in Food and Nutrition in the Czech Republic</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2022

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů