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https://hdl.handle.net/11147/5344
Title: | Barrier Properties of Corn Zein Nanocomposite Coated Polypropylene Films for Food Packaging Applications | Authors: | Özçalık, Onur Tıhmınlıoğlu, Funda |
Keywords: | Barrier properties Biopolymer Corn zein Nanocomposite coating Polypropylenes Plastic films |
Publisher: | Elsevier Ltd. | Source: | Özçalık, O., and Tıhmınlıoğlu, F. (2013). Barrier properties of corn zein nanocomposite coated polypropylene films for food packaging applications. Journal of Food Engineering, 114(4), 505-513. doi:10.1016/j.jfoodeng.2012.09.005 | Abstract: | The feasibility of corn zein nanocomposite (CZNC) coatings as an alternative to synthetic polymer barrier layer on polypropylene (PP) films was examined. The effect of layered silicate content in the CZNC layers on the barrier and surface hydrophobicity of the CZNC-PP films were investigated. Incorporation of organomodified montmorillonite (OMMT) by solution intercalation into zein matrix significantly improved oxygen and water vapor barrier of coated PP films. The barrier properties were also investigated theoretically by using various phenomenological permeability models. Tortuous permeation path formed by the fine delamination of nanoclays was found to be responsible for the barrier improvements in zein layers. In conclusion, durable CZNC-PP laminates were developed. CZNC coating of PP films has reduced the oxygen permeability nearly four times, while water vapor permeability reduced by 30% with 5 wt.% OMMT content in 5.9 μm corn zein coating. | URI: | http://doi.org/10.1016/j.jfoodeng.2012.09.005 http://hdl.handle.net/11147/5344 |
ISSN: | 0260-8774 0260-8774 |
Appears in Collections: | Chemical Engineering / Kimya Mühendisliği Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection |
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