title: Fabrication and characterization of soluble soybean polysaccharide and nanorod-rich ZnO bionanocomposite.
abstract: In this study, a novel bionanocomposite film was prepared by the casting method. Different concentrations [i.e., 0%, 1%, 2%, and 4% (w/w)] of nanorod-rich ZnO (ZnO-nr) were incorporated into soluble soybean polysaccharide (SSPS). The mechanical, thermophysical, antimicrobial, and barrier properties of the resultant bionanocomposite films were evaluated. Incorporation of 4% ZnO-nr into the SSPS matrix reduced water vapor permeability from 8.19×10(-11) to 5.25×10(-11) (gm(-1)s(-1)Pa(-1)) and oxygen permeability from 223 to 127(cm(3)μmm(-2)day(-1)atm(-1)). The elongation at break and heat seal strength of the films increased by over 20%. The moisture content, glass transition temperature, and tensile strength of the SSPS films significantly decreased by ZnO-nr incorporation. SSPS/ZnO-nr (4%) films showed 0% UV transmittance and were able to absorb over 70% of the near-infrared spectrum. The SSPS/ZnO-nr films exhibited excellent antimicrobial activity against Escherichia coli and Staphylococcus aureus. In summary, ZnO-nr is an excellent potential filler for SSPS-based films used as packaging materials.
authors.affiliation: Food Science and Technology Department, Savadkooh Branch, Islamic Azad University, Savadkooh, Mazandaran, Iran.
authors.forename: Maryam
authors.initials: M
authors.lastname: Akbariazam
authors.affiliation: Food Science and Technology Department, Savadkooh Branch, Islamic Azad University, Savadkooh, Mazandaran, Iran.
authors.forename: Mohammad
authors.initials: M
authors.lastname: Ahmadi
authors.affiliation: Food Biopolymer Research Group, Food Science and Technology Department, Damghan Branch, Islamic Azad University, Damghan, Semnan, Iran.
authors.forename: Neda
authors.initials: N
authors.lastname: Javadian
authors.affiliation: Young Researchers and Elite Club, Damghan Branch, Islamic Azad University, Damghan, Semnan, Iran. Electronic address: fstiau@damghaniau.ac.ir.
authors.forename: Abdorreza
authors.initials: A
authors.lastname: Mohammadi Nafchi
mesh_terms: D000900:Anti-Bacterial Agents / Q000737:chemistry / Q000494:pharmacology*; D004926:Escherichia coli / Q000187:drug effects; D053761:Nanocomposites / Q000737:chemistry; D043942:Nanotubes / Q000737:chemistry*; D010100:Oxygen / Q000737:chemistry; D010539:Permeability; D011134:Polysaccharides / Q000737:chemistry / Q000494:pharmacology*; D012995:Solubility; D013025:Glycine max / Q000737:chemistry; D013211:Staphylococcus aureus / Q000187:drug effects; D015034:Zinc Oxide / Q000737:chemistry / Q000494:pharmacology*
chemical_list: D000900:Anti-Bacterial Agents; D011134:Polysaccharides; D010100:Oxygen; D015034:Zinc Oxide
keywords: Soluble soybean polysaccharide; UV-shield; Zinc oxide nanorod