Abstract
In this study, the effects of turmeric extract incorporation on the antibacterial and physical properties of the chitosan films were evaluated. Turmeric containing chitosan-based film was produced with casting procedure and cross-linked with sodium sulfate. Mechanical, optical, thermal properties, and water vapor permeability of the films were studied. The addition of turmeric to chitosan film significantly increased the tensile strength of the film and improved the ultraviolet-visible light barrier of the film. Infrared spectroscopy analysis suggested an interaction between the phenolic compounds of the extract and amin group of chitosan. Antimicrobial activity of the chitosan films was studied against Salmonella and Staphylococcus aureus by plate count agar technique and a better antimicrobial activity was observed with turmeric incorporation. Turmeric incorporated chitosan films with enhanced antimicrobial activity and film stiffness can be suggested as a promising application for food packaging.
| Original language | English |
|---|---|
| Pages (from-to) | 882-888 |
| Number of pages | 7 |
| Journal | International Journal of Biological Macromolecules |
| Volume | 101 |
| DOIs | |
| Publication status | Published - 1 Aug 2017 |
Bibliographical note
Publisher Copyright:© 2017 Elsevier B.V.
Funding
We thank the Research Foundation of Istanbul Technical University for financial support. The authors have declared no conflict of interest. Mechanical measurements were performed in the Maritime Technologies Research and Development Laboratory in Piri Reis University.
| Funders | Funder number |
|---|---|
| Piri Reis University | |
| Istanbul Teknik Üniversitesi |
Keywords
- Antibacterial properties
- Chitosan
- Curcuminoids
- Food packaging
- Mechanical properties
- Turmeric