In this study, a novel bionanocomposite film was prepared by the casting method. Different concen-trations [i.e., 0%, 1%, 2%, and 4% (w/w)] of nanorod-rich ZnO (ZnO-nr) were incorporated into solublesoybean polysaccharide (SSPS). The mechanical, thermophysical, antimicrobial, and barrier properties ofthe resultant bionanocomposite films were evaluated. Incorporation of 4% ZnO-nr into the SSPS matrixreduced water vapor permeability from 8.19 × 10−11to 5.25 × 10−11(g m−1s−1Pa−1) and oxygen perme-ability from 223 to 127 (cm3m m−2day−1atm−1). The elongation at break and heat seal strength of thefilms increased by over 20%. The moisture content, glass transition temperature, and tensile strength ofthe SSPS films significantly decreased by ZnO-nr incorporation. SSPS/ZnO-nr (4%) films showed 0% UVtransmittance and were able to absorb over 70% of the near-infrared spectrum. The SSPS/ZnO-nr filmsexhibited 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.
کلید واژگان :Zinc oxide nanorodSoluble soybean polysaccharideUV-shiel
ارزش ریالی : 600000 ریال
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