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Photo-producible and photo-degradable starch/TiO2 bionanocomposite as a food packaging material: Development and characterization.
Int J Biol Macromol. 2018 Jan; 106:661-669.IJ

Abstract

In current study, starch/TiO2 bionanocomposites were produced by photochemical reactions as a biodegradable food packaging material. Physical, mechanical, thermal and water-vapor permeability properties were investigated. Then, the photo-degradation properties of nanocomposite films were studied. This is the first report of the photo-producible and photo-degradable bionanocomposite as a food packaging material. Film-forming solutions were exposed to ultraviolet A (UV-A) for different times. Our results showed that UV-A irradiation increased the hydrophobicity of starch films. With increasing UV-A exposure time, tensile strength and Young's modulus of the specimens were decreased. On the other hand, elongation at break of the films was increased with increasing UV-A irradiation. The glass transition temperature and melting point of the films were increased by increasing UV-A exposure time. Nevertheless, the results showed that photo-degradation properties of photo-produced starch/TiO2 nanocomposite were significantly higher than virgin starch and virgin starch/TiO2 films. According to obtain results and bibliography a schema was developed to describe the mechanism of photo-production and photo-degradation of starch/TiO2 by UV-A ray. It can be concluded, the modification of starch based biopolymer by UV-A and nano-TiO2, is an easy and accessible process to improve the packaging properties and photo-degradability of biopolymer based films.

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Publisher Full Text (DOI)

Authors+Show Affiliations

Goudarzi V
Department of Food Science and Engineering, Faculty of Agriculture, University of Zanjan, 45371-38791 Zanjan, Iran.
Shahabi-Ghahfarrokhi I
Department of Food Science and Engineering, Faculty of Agriculture, University of Zanjan, 45371-38791 Zanjan, Iran. Electronic address: i.shahabi@znu.ac.ir.

MeSH

Biodegradation, EnvironmentalElastic ModulusFood PackagingHumansHydrophobic and Hydrophilic InteractionsMembranes, ArtificialNanocompositesPermeabilityStarchSteamTensile StrengthTitaniumTransition TemperatureUltraviolet Rays

Pub Type(s)

Journal Article

Language

eng

PubMed ID

28837851

Citation

Goudarzi, Vahid, and Iman Shahabi-Ghahfarrokhi. "Photo-producible and Photo-degradable starch/TiO2 Bionanocomposite as a Food Packaging Material: Development and Characterization." International Journal of Biological Macromolecules, vol. 106, 2018, pp. 661-669.
Goudarzi V, Shahabi-Ghahfarrokhi I. Photo-producible and photo-degradable starch/TiO2 bionanocomposite as a food packaging material: Development and characterization. Int J Biol Macromol. 2018;106:661-669.
Goudarzi, V., & Shahabi-Ghahfarrokhi, I. (2018). Photo-producible and photo-degradable starch/TiO2 bionanocomposite as a food packaging material: Development and characterization. International Journal of Biological Macromolecules, 106, 661-669. https://doi.org/10.1016/j.ijbiomac.2017.08.058
Goudarzi V, Shahabi-Ghahfarrokhi I. Photo-producible and Photo-degradable starch/TiO2 Bionanocomposite as a Food Packaging Material: Development and Characterization. Int J Biol Macromol. 2018;106:661-669. PubMed PMID: 28837851.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Photo-producible and photo-degradable starch/TiO2 bionanocomposite as a food packaging material: Development and characterization. AU - Goudarzi,Vahid, AU - Shahabi-Ghahfarrokhi,Iman, Y1 - 2017/08/23/ PY - 2017/03/21/received PY - 2017/07/17/revised PY - 2017/08/08/accepted PY - 2017/8/25/pubmed PY - 2018/7/10/medline PY - 2017/8/25/entrez KW - Nano TiO(2) KW - Starch KW - UV radiation SP - 661 EP - 669 JF - International journal of biological macromolecules JO - Int J Biol Macromol VL - 106 N2 - In current study, starch/TiO2 bionanocomposites were produced by photochemical reactions as a biodegradable food packaging material. Physical, mechanical, thermal and water-vapor permeability properties were investigated. Then, the photo-degradation properties of nanocomposite films were studied. This is the first report of the photo-producible and photo-degradable bionanocomposite as a food packaging material. Film-forming solutions were exposed to ultraviolet A (UV-A) for different times. Our results showed that UV-A irradiation increased the hydrophobicity of starch films. With increasing UV-A exposure time, tensile strength and Young's modulus of the specimens were decreased. On the other hand, elongation at break of the films was increased with increasing UV-A irradiation. The glass transition temperature and melting point of the films were increased by increasing UV-A exposure time. Nevertheless, the results showed that photo-degradation properties of photo-produced starch/TiO2 nanocomposite were significantly higher than virgin starch and virgin starch/TiO2 films. According to obtain results and bibliography a schema was developed to describe the mechanism of photo-production and photo-degradation of starch/TiO2 by UV-A ray. It can be concluded, the modification of starch based biopolymer by UV-A and nano-TiO2, is an easy and accessible process to improve the packaging properties and photo-degradability of biopolymer based films. SN - 1879-0003 UR - https://www.unboundmedicine.com/medline/citation/28837851/Photo_producible_and_photo_degradable_starch/TiO2_bionanocomposite_as_a_food_packaging_material:_Development_and_characterization_ DB - PRIME DP - Unbound Medicine ER -