Journal of Applied Polymer Science
Journal of Applied Polymer Science
5 years ago

Linking morphology changes to barrier properties of polymeric packaging for microwave-assisted thermal sterilized food

Linking morphology changes to barrier properties of polymeric packaging for microwave-assisted thermal sterilized food
Barbara Rasco, Shyam S. Sablani, Li Li, Kanishka Bhunia, Juming Tang, Nydia Munoz, Michail Dolgovskij, Hongchao Zhang
It is a priority to develop polymeric packaging that can withstand microwave-assisted thermal sterilization (MATS) and maintain the quality of low-acid foods during long-term storage. In this study, we explored changes in the morphology of pouch films with two multi-layer structures. The films are based on barrier layers of metal oxide-coated poly(ethylene terephthalate) (PET) (film A) and ethylene vinyl alcohol (EVOH) (film B). A 8-oz model food in pouches was processed with MATS (F0 = 9.0 min) and stored at 23, 35 and 45 °C for up to 12 months. Findings reveal that the oxygen barrier of film A was influenced by the coating and crystallinity of PET. The oxygen barrier of film B was primarily affected by the moisture content of the EVOH polymer. Results also show that changes in barrier properties depended on storage temperature. Recrystallization in polymer might be an important morphological change that occurs during storages. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 45481.

Publisher URL: http://onlinelibrary.wiley.com/resolve/doi

DOI: 10.1002/app.45481

You might also like
Discover & Discuss Important Research

Keeping up-to-date with research can feel impossible, with papers being published faster than you'll ever be able to read them. That's where Researcher comes in: we're simplifying discovery and making important discussions happen. With over 19,000 sources, including peer-reviewed journals, preprints, blogs, universities, podcasts and Live events across 10 research areas, you'll never miss what's important to you. It's like social media, but better. Oh, and we should mention - it's free.

  • Download from Google Play
  • Download from App Store
  • Download from AppInChina

Researcher displays publicly available abstracts and doesn’t host any full article content. If the content is open access, we will direct clicks from the abstracts to the publisher website and display the PDF copy on our platform. Clicks to view the full text will be directed to the publisher website, where only users with subscriptions or access through their institution are able to view the full article.