Effects of type and thickness of flexible packaging films on perforation by Plodia interpuntella

Soo Hyun Lee, Sang Jo Kwon, Sang Eun Lee, Jeong Heon Kim, Jung Soo Lee, Ja Hyun Na, Jaejoon Han

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

This study investigated the effect of perforation by the Indian meal moth (Plodia interpunctella) larvae on various flexible food-packaging films, in relation to their thickness and type. Among the various flexible packaging films, polyethylene (PE), aluminum foil (AF), polypropylene (PP), polystyrene (PS), and polyethylene terephthalate (PET) were selected for this study due to their wide usage in food packaging. Based on their thickness, film penetration by P. interpunctella larvae was measured as in following order: PP, 20 μm; AF, 9 μm; PET, 12 μm; PP, 30 μm; PS, 30 μm; PE, 40 μm; PE, 35 μm; PS, 60 μm; and PET, 16 μm. P. interpunctella larvae rapidly penetrated through the packaging films regardless of their thickness and type. In particular, it was observed that PP of 20 μm and PS of 30 μm were completely penetrated by P. interpunctella larvae within 72 h, rendering thin PP and PS films less valuable as anti-insect packaging films. Our results show that the perforations by P. interpunctella larvae were observed in the thin films. These results imply that each packaging film has a marginal thickness against the perforations by P. interpunctella larvae.

Original languageEnglish
Pages (from-to)739-742
Number of pages4
JournalKorean Journal of Food Science and Technology
Volume46
Issue number6
DOIs
Publication statusPublished - 2014 Jan 1

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ASJC Scopus subject areas

  • Food Science
  • Biotechnology
  • Applied Microbiology and Biotechnology

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