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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Oleyaei, Seyed Amir Zahedi, Younes Ghanbarzadeh, Babak Moayedi, Ali Akbar |
| Description | Country affiliation: Iran Author Affiliation: Oleyaei SA ( Agricultural Engineering Research Department, Khorasan Razavi Agricultural and Natural Resources Research and Education Center, AREEO, Mashhad, Iran); Zahedi Y ( Department of Food Science and Technology, Faculty of Agriculture Sciences, University of Mohaghegh Ardabili, P.O. Box: 56199-11367, Ardabil, Iran. Electronic address: Younes.zahedi@gmail.com.); Ghanbarzadeh B ( Department of Food Science and Technology, Faculty of Agriculture, University of Tabriz, Tabriz, Iran.); Moayedi AA ( Seed and Plant Improvement Institute, Crop Science Department, Khorasan Razavi Agricultural and Natural Resources Research and Education Center, AREEO, Mashhad, Iran.) |
| Abstract | In this research, potato starch and TiO2 nanoparticles (0.5, 1 and 2wt%) films were developed. Influences of different concentrations of TiO2 on the functional properties of nanocomposite films (water-related properties, mechanical characteristics, and UV transmittance) were investigated. XRD, FTIR, and DSC analyses were used to characterize the morphology and thermal properties of the films. The results revealed that TiO2 nanoparticles dramatically decreased the values of water-related properties (water vapor permeability: 11-34%; water solubility: 1.88-9.26%; moisture uptake: 2.15-11.18%). Incorporation of TiO2 led to a slight increment of contact angle and tensile strength, and a decrease in elongation at break of the films. TiO2 successfully blocked more than 90% of UV light, while opacity and white index of the films were enhanced. Glass transition temperature and melting point of the films were positively affected by the addition of TiO2 nanoparticles. The result of XRD study exhibited that due to a limited agglomeration of TiO2 nanoparticles, the mean crystal size of TiO2 increased. Formation of new hydrogen bonds between the hydroxyl groups of starch and nanoparticles was confirmed by FTIR spectroscopy. In conclusion, TiO2 nanoparticles improved the functional properties of potato starch film and extended the potential for food packaging applications. |
| File Format | HTM / HTML |
| ISSN | 01418130 |
| Journal | International Journal of Biological Macromolecules |
| Volume Number | 89 |
| e-ISSN | 18790003 |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2016-08-01 |
| Publisher Place | Netherlands |
| Access Restriction | One Nation One Subscription (ONOS) |
| Content Type | Text |
| Resource Type | Article |
| Subject | Structural Biology Molecular Biology Biochemistry |
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