University of Almería, Department of Chemistry and Physics, Agrifood Campus of International Excellence (ceiA3), Ctra. Sacramento s/n, La Cañada de San Urbano, 04120 Almería, Spain.
University of Almería, Department of Chemistry and Physics, Agrifood Campus of International Excellence (ceiA3), Ctra. Sacramento s/n, La Cañada de San Urbano, 04120 Almería, Spain.
Food Chem. 2023 Aug 15;417:135852. doi: 10.1016/j.foodchem.2023.135852. Epub 2023 Mar 7.
Microwavable plastic food containers can be a source of toxic substances. Plastic materials such as polypropylene polymers are typically employed as safe materials in food packaging, but recent research demonstrates the migration of plastic substances or their by-products to food simulants, to foodstuff, and, more recently, to the human body through food consumption. However, a thorough evaluation of foodstuff in food contact materials under cooking conditions has not yet been undertaken. Here we show for the first time that plastic migrants present in food contact materials can react with natural food components resulting in a compound that combines a UV-photoinitiator (2-hydroxy-2-methyl-1-phenylpropan-1-one) with maltose from potato starch; this has been identified after cooking potatoes in microwavable plastic food containers. Additionally, polypropylene glycol substances have been found to transfer into food through microwave cooking. Identifying these substances formed in situ requires state-of-the-art high-resolution mass spectrometry instrumentation and metabolomics-based strategies.
可微波加热的塑料食品容器可能是有毒物质的来源。在食品包装中，通常使用聚丙稀等塑料材料作为安全材料，但最近的研究表明，塑料物质或其副产品会迁移到食品模拟物、食品中，最近甚至通过食物摄入进入人体。然而，尚未对烹饪条件下食品接触材料中的食品进行全面评估。在这里，我们首次表明，食品接触材料中的塑料迁移物可与天然食物成分发生反应，生成一种化合物，这种化合物将紫外线光引发剂（2-羟基-2-甲基-1-苯基-1-丙酮）与来自马铃薯淀粉的麦芽糖结合在一起；这是在微波加热的塑料食品容器中煮土豆后发现的。此外，还发现聚丙二醇物质通过微波烹饪转移到食物中。要识别这些在原位形成的物质，需要使用最先进的高分辨率质谱仪和基于代谢组学的策略。
