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Migration regularity of phthalates in polyethylene wrap film of food packaging
Author(s) -
Liu JingMin,
Li ChunYang,
Zhao Ning,
Wang ZhiHao,
Lv ShiWen,
Liu JiChao,
Chen LiJun,
Wang Jun,
Zhang Yan,
Wang Shuo
Publication year - 2020
Publication title -
journal of food science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.772
H-Index - 150
eISSN - 1750-3841
pISSN - 0022-1147
DOI - 10.1111/1750-3841.15181
Subject(s) - dibutyl phthalate , phthalic acid , food packaging , polyethylene , phthalate , polymer , chemistry , environmental chemistry , plastic packaging , organic chemistry , chemical engineering , materials science , composite material , food science , engineering
As a kind of polymer material additive, phthalic acid esters (PAEs) are widely used in food industry. However, PAEs are environmental endocrine disruptors with reproductive toxicity and teratogenic carcinogenicity, which are difficult to be degraded in the natural environment. In this paper, gas chromatography‐mass spectrometer (GC‐MS) methods for PAEs in polyethylene wrap film were optimized. For diisobutyl phthalate (DIBP) and dibutyl phthalate (DBP) that were mainly detected, the method had a good linearity in 1 to 500 ng/g. Then, we confirmed that the migration of DIBP and DBP from polyethylene wrap film increased with time and temperature. It is found that the migration law in different food simulations well followed the migration dynamics first‐level model. The rate constant K 1 and initial release rate V 0 are inversely proportional to the polarity of the simulated liquid. We hope that this study can serve as a valuable reference for further research on the migration of food packing materials. Practical Application In this paper, we present a simple example of applying migration model to evaluate the migration behaviors of PAEs in food packaging materials along with their hazardous properties. It can serve as a valuable reference for further research on the migration of food packing materials.