Migration of Acetaldehyde and Formaldehyde from PET-bottled Water Under Hot Climate Conditions

Document Type : Original Article

Authors

1 Packaging materials, NRC, Egypt

2 Microbial Chemistry Departments, National Research Centre, Dokki, Giza, Egypt

3 Packaging materials, National Research Centre, Egypt

Abstract

this study focused on how sunlight exposure affects the mount of antimony that leached into polyethylene terephthalate-bottled water as well as the amount of formaldehyde and acetaldehyde that leached from egyptian weathering after a certain period of time. The change in the mechanical properties, chemical composition, and water vapor permeability of bottles were also investigated. Bottles from the markets of two different companies were gathered and used in this experiment. A market of recently filled bottles served as the source for the reference groups. The second group originated from bottles that had been kept in the laboratory for different amounts of time. The third group was made up of bottles that had been in varying intervals of solar exposure for 386 days. The leached substances (formaldehyde, acetaldehyde, and antimony) as well as the water's toxicity and the presence of microorganisms in the water were all evaluated in the bottles' water. According to the findings, the bottles' ir spectra under varied exposure situations do not significantly differ from each other. Under a variety of weathering storage circumstances, bottled water does not demonstrate toxicity because the half maximum effective concentration (Ec50) values were less than 100 mol/L.

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History

  • Receive Date: 13 September 2022
  • Revise Date: 03 October 2022
  • Accept Date: 19 October 2022

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