title: Functional, thermal, and antimicrobial properties of soluble soybean polysaccharide biocomposites reinforced by nano TiO2.
abstract: This study describes a new polysaccharide-based bionanocomposite developed through solvent casting. Different concentrations (i.e., 0%, 1%, 3%, and 5% (w/w)) of nano titanium dioxide (TiO2-N) were incorporated into soluble soybean polysaccharide (SSPS), and the functional properties of the resultant SSPS films were estimated. Incorporation of TiO2-N into the SSPS matrix decreased water vapor permeability from 7.41 to 4.44 × (10(-11)gm(-1) s(-1) Pa(-1)) and oxygen permeability from 202 to 98 (cm(3)μmm(-2) d(-1) atm(-1)). Moisture content also decreased, the glass transition temperature increased, and the mechanical properties and heat seal strength of the SSPS films improved. SSPS bionanocomposite films showed excellent antimicrobial activity against Escherichia coli and Staphylococcus aureus. In summary, TiO2-N shows potential use as a filler in SSPS-based films for the food and non-food industries.
authors.affiliation: Food Biopolymer Research Group, Food Science and Technology Department, Damghan Branch, Islamic Azad University, Damghan, Semnan, Iran.
authors.forename: Teymourpour
authors.initials: T
authors.lastname: Shaili
authors.affiliation: Food Biopolymer Research Group, Food Science and Technology Department, Damghan Branch, Islamic Azad University, Damghan, Semnan, Iran. Electronic address: fstiau@damghaniau.ac.ir.
authors.forename: Mohammadi Nafchi
authors.initials: MN
authors.lastname: Abdorreza
authors.affiliation: Food Biopolymer Research Group, Food Science and Technology Department, Damghan Branch, Islamic Azad University, Damghan, Semnan, Iran.
authors.forename: Nahidi
authors.initials: N
authors.lastname: Fariborz
mesh_terms: D000900:Anti-Bacterial Agents / Q000737:chemistry / Q000494:pharmacology; D004926:Escherichia coli / Q000187:drug effects; D006358:Hot Temperature; D053761:Nanocomposites / Q000737:chemistry*; D010539:Permeability; D011134:Polysaccharides / Q000737:chemistry* / Q000494:pharmacology*; D012995:Solubility; D013025:Glycine max / Q000737:chemistry*; D013211:Staphylococcus aureus / Q000187:drug effects; D013499:Surface Properties; D014025:Titanium / Q000737:chemistry*; D014867:Water / Q000737:chemistry
chemical_list: D000900:Anti-Bacterial Agents; D011134:Polysaccharides; D014867:Water; C009495:titanium dioxide; D014025:Titanium
keywords: Antimicrobial properties; Barrier properties; Mechanical properties; Nano titanium dioxide; SSPS film