Please use this identifier to cite or link to this item: https://hdl.handle.net/11499/5884
Title: The influence of plastic composition and ventilation area on ozone diffusion through some food packaging materials
Authors: Karaca, Hakan
Smilanick, J.L.
Keywords: Diffusion
High-density polyethylene
Low-density polyethylene
Ozone
Polypropylene
Ventilation area
Abstract: Regulatory approval of ozone has increased commercial interest in the development of applications to ensure produce quality and safety. However, ozone sometimes fails to inactivate microorganisms on packaged produce and this may be a consequence of poor diffusion into packages. Gaseous ozone (900 ± 12 µL/L) was applied to several common plastic films with a range of ventilation areas and diffusion through them determined. A semi-quantitative method using the reaction of ozone with indigo trisulfonate or with indigo carmine dye solutions was used. Dye de-colorization occurred relatively rapidly (in less than 1. h) after exposure to ozone, indicating that it diffused through all tested materials. Although the extent of ozone diffusion followed the sequence of high-density polyethylene > polypropylene > low density polyethylene, differences among them were small and not significant (P>0.05). Ozone diffusion was also determined through a low density polyethylene film with ventilation areas of 1.3, 5.2, and 10.4% created by circular holes 6.5. mm in diameter. Gradual but modest increases in ozone diffusion occurred as the ventilation area increased. © 2011 Elsevier B.V.
URI: https://hdl.handle.net/11499/5884
https://doi.org/10.1016/j.postharvbio.2011.04.004
ISSN: 0925-5214
Appears in Collections:Mühendislik Fakültesi Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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