Author ORCID Identifier
https://orcid.org/0000-0003-1225-0333
Document Type
Conference Paper
Rights
Available under a Creative Commons Attribution Non-Commercial Share Alike 4.0 International Licence
Disciplines
Coating and films, Composites, Biomaterials, Nano-materials, Biomaterials
Abstract
The increased environmental pollution has led to finding sustainable solutions for non-renewable plastic-based food packaging materials. Thus, the use of biomaterial-based packaging material has become an immense trend. This work aims at developing an antimicrobial biodegradable chitosanalginate bio-nano composite film with TiO2 nanoparticle (NPs) for food packaging applications. The film was developed by a solution casting method. The chemical, mechanical, thermal, barrier, antimicrobial, and biodegradable properties of the packaging films were evaluated. Packaging studies were performed for 15 days for cherry tomatoes. The designed packaging material had enhanced the mechanical properties with a significantly (p < 0.05) higher tensile strength of 15.76 folds and 2 fold higher elongation at break. The UV barrier properties increased by 88.6%, while the film transparency decreased by 87.23%. Molecular interaction of N-H covalent bonds was observed between alginate and chitosan together with TiO2 NPs. The developed bio-nano composite film showed antimicrobial activity against foodborne pathogens E. coli, S. aureus, S. typhi, and L. monocytogene with a log reduction of 7.08, 7.28, 6.04 & 6.02 log CFU/ml respectively at 24 hours incubation period. The film was completely biodegraded and a weight loss of 89.06% was observed in bio-nanocomposite film during the 3 months. Shelf-life estimation of cherry tomato using developed packaging films showed an increase in the shelf-life up to 8 days with stable pH, total soluble solids, and weight with no bacterial growth when packaged with prepared film. Owing to their improved mechanical, UV barrier, antibacterial, and biodegradability, the prepared active bio-nano composite packaging films could be considered a potential candidate for fruit packaging.
DOI
https://doi.org/10.21427/XW87-EG02
Recommended Citation
Perera, K. Y., Sharma, S., Duffy, B., Jaiswal, A. K., & Jaiswal, S. (2022). Biodegradable Active Bio-nanocomposite Film for the Enhanced Shelf life of Tomatoes. Technological University Dublin. DOI: 10.21427/XW87-EG02
Funder
Technological University Dublin
Included in
Food Chemistry Commons, Other Materials Science and Engineering Commons, Polymer and Organic Materials Commons
Publication Details
36th EFFoST International Conference Shaping the Production of Sustainable, Healthy Foods for the Future
7-9 November 2022 Dublin, Ireland