Occurrence of photoinitiator type contaminants in oat flakes from Czech market

Kód výsledku v 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>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Occurrence of photoinitiator type contaminants in oat flakes from Czech market

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

Occurrence of photoinitiator type contaminants in oat flakes from Czech market

Popis výsledku anglicky

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.

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

30304 - Public and environmental health

Projekt

<a href="/cs/project/LM2018100" target="_blank" >LM2018100: Infrastruktura pro propagaci metrologie v potravinářství a výživě v České republice</a><br>

Návaznosti

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

Rok uplatnění

2022

Kód důvěrnosti údajů

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