title: Preparation of ecofriendly UV-protective food packaging material by starch/TiO2bio-nanocomposite: Characterization.
abstract: In this study, ecofriendly starch/TiO2bio-nanocomposites were produced using with different nano-TiO2(TiO2) content (1, 3, and 5 (wt%)). Physical, mechanical, thermal, water-vapor permeability (WVP) properties and UV transmittance were investigated. Our results showed that the increasing TiO2content increased the hydrophobicity of starch/TiO2films. WVP of the bio-nanocomposites was reduced, simultaneously. With increasing TiO2content, tensile strength and Young's modulus of the film specimens were reduced while elongation at break and tensile energy to break were increased. The thermal properties of specimens showed that glass transition temperature of the films increased but melting point of the specimen films was decreased by increasing TiO2content. Scanning electron microscopy observations demonstrated, the most of films' physical properties were in relation to their microstructures. The starch/TiO2nanocomposites effectively protect goods against UV light, and could potentially be applied as UV-shielding packaging materials.
authors.affiliation: Department of Food Science and Technology, Faculty of Agriculture, University of Zanjan, 45371-38791, Zanjan, Iran. Electronic address: Vahid.goudarzi@znu.ac.ir.
authors.forename: Vahid
authors.initials: V
authors.lastname: Goudarzi
authors.affiliation: Department of Food Science and Technology, Faculty of Agriculture, University of Zanjan, 45371-38791, Zanjan, Iran. Electronic address: i.shahabi@znu.ac.ir.
authors.forename: Iman
authors.initials: I
authors.lastname: Shahabi-Ghahfarrokhi
authors.affiliation: Department of Food Science and Technology, Faculty of Agriculture, Islamic Azad University, North Tehran Branch, Tehran, Iran. Electronic address: Amin_babaei@ut.ac.ir.
authors.forename: Amin
authors.initials: A
authors.lastname: Babaei-Ghazvini
mesh_terms: D065966:Absorption, Physicochemical; D003116:Color; D018857:Food Packaging; D055772:Green Chemistry Technology; D055595:Mechanical Phenomena; D053761:Nanocomposites / Q000737:chemistry*; D010539:Permeability; D012995:Solubility; D013213:Starch / Q000737:chemistry*; D014025:Titanium / Q000737:chemistry*; D014466:Ultraviolet Rays; D014867:Water / Q000737:chemistry
chemical_list: D014867:Water; C009495:titanium dioxide; D013213:Starch; D014025:Titanium
keywords: Ecofriendly; Starch; TiO(2) nanoparticles