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http://dx.doi.org/10.9721/KJFST.2014.46.1.19

Identification of the Volatile Compounds in Polyethylene Terephthalate Bottles and Determination of Their Migration Content into Mineral Water  

Jung, Eui Min (Department of Food Processing and Distribution, Gangneung-Wonju National University)
Kim, Dong Joo (The Center for Scientific Instruments of Gangneung-Wonju National University)
Lee, Keun Taik (Department of Food Processing and Distribution, Gangneung-Wonju National University)
Publication Information
Korean Journal of Food Science and Technology / v.46, no.1, 2014 , pp. 19-24 More about this Journal
Abstract
This study was carried out to identify the volatile organic compounds (VOCs) in polyethylene terephthalate (PET) bottles and to determine the extent to which VOCs migrate into mineral water during the bottling process and storage. A greater amount of nonanal and decanal was generated from the PET bottles than from the PET preforms. Benzene, ethylbenzene, nonanal, and vinyl benzoate were identified from the PET bottles when the incubation temperature of the headspace solid-phase microextraction (HS-SPME) sampler was set to 60, 80, and $100^{\circ}C$. As the incubation temperature increased, the concentrations of nonanal, vinyl benzoate, and decanal increased significantly. When the high-density polyethylene (HDPE) PET bottle caps were extracted with dichloromethane, the level of Irgafos 168 was found to be $206{\pm}20.1\mu}g/g$. The concentration of 2,4-di-tert-butylphenol in water was $4.80{\pm}0.2{\mu}g/L$. Therefore, it is necessary to avoid exposing PET and HDPE resins to high temperatures during the manufacturing process and storage of bottled water.
Keywords
PET; high density polyethylene; volatile compound; migration; bottled water;
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Times Cited By KSCI : 1  (Citation Analysis)
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