Innovative Composite Films of Chitosan, Methylcellulose, and Nanoparticles

Stefania Mura, Francesco Corrias, Giuseppe Stara, Massimo Piccinini, Nicola Secchi, Daniela Marongiu, Plinio Innocenzi, Joseph Irudayaraj, Gian F. Greppi

Research output: Contribution to journalArticlepeer-review


Plastic is readily available and inexpensive, so it is becoming the main material for packaging. Unfortunately plastics do not biodegrade and, if reduced in small pieces, contaminate soil and waterways. In the present work, natural films composed of chitosan, methylcellulose, and silica (SiO2) nanoparticles (NPs) were developed as new packaging materials. The effect of the incorporation of NPs into the polymeric film matrix was evaluated. An excellent improvement of the mechanical properties was obtained for nanostructured films with a composition of CH:MC 50:50 and NPs 1% w/v that make these materials able to replace plastics and derivatives, reducing environmental pollution.

Original languageEnglish (US)
Pages (from-to)N54-N60
JournalJournal of food science
Issue number7
StatePublished - Sep 2011
Externally publishedYes


  • Chitosan
  • Methylcellulose
  • Nanostructured films
  • Packaging
  • Silica nanoparticles

ASJC Scopus subject areas

  • Food Science


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