Loading...

Carrageenan-Based functional films integrated with cuo-doped titanium nanotubes for active food-packaging applications

Ezati, P ; Sharif University of Technology | 2021

409 Viewed
  1. Type of Document: Article
  2. DOI: 10.1021/acssuschemeng.1c01957
  3. Publisher: American Chemical Society , 2021
  4. Abstract:
  5. A titanium dioxide nanotube (TNT) and CuO-doped TNT (TNT-CuO) were synthesized using a hydrothermal method and incorporated into carrageenan-based films. The SEM results confirmed the formation of uniform nanocomposite films. The addition of nanoparticles imparted UV-blocking properties to the carrageenan film and increased the mechanical strength, surface hydrophobicity, and water vapor barrier properties. The modified TiO2 (TNT and TNT-CuO)-incorporated carrageenan films showed significantly higher antibacterial activity than the TiO2-added film under visible light. Bananas packaged with the neat carrageenan and TiO2-added films were degraded considerably after 12 days of storage at 20 °C. In contrast, bananas packaged with the modified TiO2, especially TNT-CuO-incorporated carrageenan films, retained high quality in terms of weight loss, firmness, and surface color. © 2021 American Chemical Society
  6. Keywords:
  7. Building materials ; Copper oxides ; Fruits ; Nanotubes ; Oxide minerals ; Titanium dioxide ; Active food packaging ; Anti-bacterial activity ; Functional films ; Hydrothermal methods ; Surface colors ; Surface hydrophobicity ; Titanium dioxide nanotubes ; Water vapor barriers ; Nanocomposite films
  8. Source: ACS Sustainable Chemistry and Engineering ; Volume 9, Issue 28 , 2021 , Pages 9300-9307 ; 21680485 (ISSN)
  9. URL: https://pubs.acs.org/doi/10.1021/acssuschemeng.1c01957