{"title":"评估食品包装中再生 PET 的化学风险和对循环经济的影响","authors":"","doi":"10.1016/j.resenv.2024.100163","DOIUrl":null,"url":null,"abstract":"<div><p>In response to regulatory demands for sustainable practices, there has been a significant increase in the use of recycled materials in food packaging, particularly when incorporated behind functional barriers. This study, conducted as part of the “ABA Modeling” project, evaluates the migration of contaminants from the non-decontaminated, recycled polyethylene terephthalate (rPET) B-layer, which is sandwiched between two virgin A-layers in three-layer trays. The study aims to assess the long-term implications for food safety within the context of the European and French circular economy frameworks. Using a migration modeling approach based on “worst-case” scenarios for ten contaminants – similar to methodologies employed for decontaminated direct food contact PET – the levels of chemical residues are analyzed and compared. Findings highlight the significant impact of the co-extrusion process on the suitability of rPET for food contact. Additionally, the study discusses the risks and challenges for the recycling sector, particularly in managing chemical contamination during mechanical recycling. Recommendations are provided to improve industrial practices, emphasizing the importance of ongoing monitoring to ensure the long-term sustainability of these recycling practices.</p></div>","PeriodicalId":34479,"journal":{"name":"Resources Environment and Sustainability","volume":null,"pages":null},"PeriodicalIF":12.4000,"publicationDate":"2024-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666916124000161/pdfft?md5=3c99d181a593afc97390c956febf2124&pid=1-s2.0-S2666916124000161-main.pdf","citationCount":"0","resultStr":"{\"title\":\"Assessment of chemical risks and circular economy implications of recycled PET in food packaging with functional barriers\",\"authors\":\"\",\"doi\":\"10.1016/j.resenv.2024.100163\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>In response to regulatory demands for sustainable practices, there has been a significant increase in the use of recycled materials in food packaging, particularly when incorporated behind functional barriers. This study, conducted as part of the “ABA Modeling” project, evaluates the migration of contaminants from the non-decontaminated, recycled polyethylene terephthalate (rPET) B-layer, which is sandwiched between two virgin A-layers in three-layer trays. The study aims to assess the long-term implications for food safety within the context of the European and French circular economy frameworks. Using a migration modeling approach based on “worst-case” scenarios for ten contaminants – similar to methodologies employed for decontaminated direct food contact PET – the levels of chemical residues are analyzed and compared. Findings highlight the significant impact of the co-extrusion process on the suitability of rPET for food contact. Additionally, the study discusses the risks and challenges for the recycling sector, particularly in managing chemical contamination during mechanical recycling. Recommendations are provided to improve industrial practices, emphasizing the importance of ongoing monitoring to ensure the long-term sustainability of these recycling practices.</p></div>\",\"PeriodicalId\":34479,\"journal\":{\"name\":\"Resources Environment and Sustainability\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":12.4000,\"publicationDate\":\"2024-07-10\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.sciencedirect.com/science/article/pii/S2666916124000161/pdfft?md5=3c99d181a593afc97390c956febf2124&pid=1-s2.0-S2666916124000161-main.pdf\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Resources Environment and Sustainability\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2666916124000161\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ENVIRONMENTAL SCIENCES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Resources Environment and Sustainability","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2666916124000161","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENVIRONMENTAL SCIENCES","Score":null,"Total":0}
引用次数: 0
摘要
为了满足可持续发展的监管要求,食品包装中对回收材料的使用大幅增加,尤其是在功能性屏障后面使用回收材料时。作为 "ABA 建模 "项目的一部分,本研究评估了三层托盘中夹在两层原生 A 层之间的未去污再生聚对苯二甲酸乙二酯(rPET)B 层的污染物迁移情况。这项研究旨在评估在欧洲和法国循环经济框架内对食品安全的长期影响。该研究采用基于十种污染物 "最坏情况 "情景的迁移建模方法(类似于用于净化直接接触食品的 PET 的方法),对化学残留物的水平进行了分析和比较。研究结果强调了共挤工艺对 rPET 食品接触适用性的重大影响。此外,研究还讨论了回收行业面临的风险和挑战,特别是在机械回收过程中管理化学污染方面。研究提出了改进工业实践的建议,强调了持续监测的重要性,以确保这些回收实践的长期可持续性。
Assessment of chemical risks and circular economy implications of recycled PET in food packaging with functional barriers
In response to regulatory demands for sustainable practices, there has been a significant increase in the use of recycled materials in food packaging, particularly when incorporated behind functional barriers. This study, conducted as part of the “ABA Modeling” project, evaluates the migration of contaminants from the non-decontaminated, recycled polyethylene terephthalate (rPET) B-layer, which is sandwiched between two virgin A-layers in three-layer trays. The study aims to assess the long-term implications for food safety within the context of the European and French circular economy frameworks. Using a migration modeling approach based on “worst-case” scenarios for ten contaminants – similar to methodologies employed for decontaminated direct food contact PET – the levels of chemical residues are analyzed and compared. Findings highlight the significant impact of the co-extrusion process on the suitability of rPET for food contact. Additionally, the study discusses the risks and challenges for the recycling sector, particularly in managing chemical contamination during mechanical recycling. Recommendations are provided to improve industrial practices, emphasizing the importance of ongoing monitoring to ensure the long-term sustainability of these recycling practices.