Scholarlink

<p>Polyethylene terephthalate (PET) is commonly used in beverage packaging and can be recycled to reduce plastic pollution, raising concerns regarding non-intentionally added substances (NIAS). Here, two organic NIAS, acetaldehyde and benzene, and metal elements have been examined in PET materials. Elemental analysis revealed that higher recycled content in PET correlated with increased contaminant levels. Moreover, elevated acetaldehyde and benzene concentrations were noticed. PET degradation, intentional addition, and unknown sources complicate the analysis of the effects of the production, recycling, and storage on the introduction, formation, or migration of NIAS in PET materials. Benzene and acetaldehyde could migrate into beverages or the environment during storage. The migration of these two volatile substances was therefore quantified. Despite their presence in all PET materials, the low concentrations of acetaldehyde and benzene detected alleviate potential health concerns. This research contributes to the understanding of how recycling and recycled content impact the presence of NIAS in PET, offering insights for optimizing recycling practices and sustaining the role of PET in environmentally responsible beverage packaging.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Investigating Polyethylene Terephthalate Beverage Packaging: Impact of Recycled Content on Acetaldehyde, Benzene, and Other Contaminants

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年3月1日

查看全文
  • Xiaoning Shen,
  • Yvonne Hed,
  • Steffen Annfinsen,
  • Naveen Singh,
  • Hany Anwar,
  • Bavan Mylvaganam,
  • Thor Kamfjord,
  • Åsa Emmer

摘要

Polyethylene terephthalate (PET) is commonly used in beverage packaging and can be recycled to reduce plastic pollution, raising concerns regarding non-intentionally added substances (NIAS). Here, two organic NIAS, acetaldehyde and benzene, and metal elements have been examined in PET materials. Elemental analysis revealed that higher recycled content in PET correlated with increased contaminant levels. Moreover, elevated acetaldehyde and benzene concentrations were noticed. PET degradation, intentional addition, and unknown sources complicate the analysis of the effects of the production, recycling, and storage on the introduction, formation, or migration of NIAS in PET materials. Benzene and acetaldehyde could migrate into beverages or the environment during storage. The migration of these two volatile substances was therefore quantified. Despite their presence in all PET materials, the low concentrations of acetaldehyde and benzene detected alleviate potential health concerns. This research contributes to the understanding of how recycling and recycled content impact the presence of NIAS in PET, offering insights for optimizing recycling practices and sustaining the role of PET in environmentally responsible beverage packaging.