Food and Fermentation Industries >

2021 , Vol. 47 >Issue 15: 120 - 128

DOI: https://doi.org/10.13995/j.cnki.11-1802/ts.026615

Migration and safety assessment of primary aromatic amines and two plastic additives from PET/PE composite films

  • LUO Renjie ,
  • LIN Qinbao ,
  • YAN Jianwei ,
  • MA Junjie ,
  • LI Zhong
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  • 1(Packaging Engineering Institute,Jinan University,Zhuhai 519070,China)
    2(School of Civil Engineering and Architecture,East China Jiaotong University,Nanchang 330052,China)
    3(Gongbei Customs Technology Center,Zhuhai 519020,China)

Received date: 2021-01-12

  Revised date: 2021-03-05

  Online published: 2021-08-23

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Abstract

Detection for PET/PE composite film was conducted by ultra high-performance liquid chromatography mass spectrometry (UPLC-MS/MS), and one primary aromatic amines (PAAs) Bis(4-aminophenyl) sulfide as well as two plastic additives erucamide (EAD) and antioxidant 2246 (AO2246) were detected. Then the migration of PET/PE and PET/AL/PE in composite films under 40 ℃/10 d and 70 ℃/2 h conditions immersed in three kinds of simulants (4% acetic acid, 10% and 95% ethanol) were carried out. The proposed method could simultaneously to determine 25 PAAs and EAD in ESI+ mode, and also to investigate AO2246 in ESI-mode. It was validated in terms of linearity, matrix effect error, detection and quantification limits, repeatability and intermediate precision. The quantitative method presented recoveries ranging from 82.7% to 119%, with a precision (RSD) lower than 12.5% for the 27 substances. Based on the experimental results, several conclusions were drawn as follows. Firstly, the species and amount of PAAs migrated at 40 ℃/10 d were higher than those at 70 ℃/2 h. And time was the main factor affecting PAAs’ migration and higher temperatures may lead to more PAAs released. Secondly, the migration of both PAAs could be effectively reduced by aluminum layer at a low temperature. Thirdly, the difference among the results in three kinds of simulants suggested that pH could also has an impact that acidic condition weakened PAAs’ migration. Last but not the least, the migration of EAD and AO2246 was lower than TTC safety threshold and national standard GB 9685 respectively. However, PAAs’ content could not meet the requirement of European Union standard, which indicates high safety risk.

Key words： primary aromatic amines; plastic composite packaging; plastic additives; PET/PE; high performance liquid chromatography mass spectrometry(HPLC-MS); migration; food safety

Cite this article

LUO Renjie , LIN Qinbao , YAN Jianwei , MA Junjie , LI Zhong . Migration and safety assessment of primary aromatic amines and two plastic additives from PET/PE composite films[J]. Food and Fermentation Industries, 2021 , 47(15) : 120 -128 . DOI: 10.13995/j.cnki.11-1802/ts.026615

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