Physical, mechanical, thermal and structural characteristics of nanoencapsulated vitamin E loaded carboxymethyl cellulose films

Ali Mirzaei-Mohkam, Farhad Garavand, Danial Dehnad, Javad Keramat, Ali Nasirpour

Research output: Contribution to journalArticlepeer-review

Abstract

Nanoencapsulated vitamin E (α-tocopherol) incorporated into the carboxymethyl cellulose (CMC) films using film-forming cast solution method. Then, some physical, mechanical, thermal and structural attributes of the active films were scrutinized. From the obtained results, addition of α-tocopherol nanocapsules significantly (p < 0.05) decreased the water vapour permeability (WVP), tensile strength (TS) and Young's modulus, while elongation at break (EAB) significantly (p < 0.05) increased. Morphology of CMC films revealed that nanocapsules cause porosity and changes in film matrix structure. The DSC (differential scanning calorimetry) patterns exhibited a drop in melting points of the film composites as a result of α-tocopherol addition. The FTIR (Fourier transform infrared spectroscopy) spectra confirmed the successful loading of α-tocopherol into the structure of CMC films, due to the formation of carbonyl group (C[dbnd]O) via phenol part of α-tocopherol at 1710 cm−1 within the CMC film. α-tocopherol loaded CMC composite films could be proposed for sheltering food items containing lipids or fats which stored at the ambient temperature.

Original languageEnglish
Article number105383
JournalProgress in Organic Coatings
Volume138
DOIs
Publication statusPublished - Jan 2020
Externally publishedYes

Keywords

  • Carboxymethyl cellulose film
  • FTIR
  • Nanoencapsulation
  • α-tocopherol

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