Functional, thermal, and antimicrobial properties of soluble soybean polysaccharide biocomposites reinforced by nano TiO2

•Fabrication of novel bionanocomposites from soluble soybean polysaccharide (SSPS).•Nano TiO2 improved mechanical, heat sealability, and physical properties of SSPS.•SSPS nanocomposites can use as active packaging against pathogenic microorganisms.•Permeability to both water vapour and oxygen decrea...

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Bibliographic Details
Published in:Carbohydrate polymers 2015-12, Vol.134, p.726-731
Main Authors: Shaili, Teymourpour, Abdorreza, Mohammadi Nafchi, Fariborz, Nahidi
Format: Article
Language:English
Subjects:
Anti-Bacterial Agents - chemistry
Anti-Bacterial Agents - pharmacology
Antimicrobial properties
Barrier properties
Escherichia coli - drug effects
Glycine max - chemistry
Hot Temperature
Mechanical properties
Nano titanium dioxide
Nanocomposites - chemistry
Permeability
Polysaccharides - chemistry
Polysaccharides - pharmacology
Solubility
SSPS film
Staphylococcus aureus - drug effects
Surface Properties
Titanium - chemistry
Water - chemistry
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Summary:•Fabrication of novel bionanocomposites from soluble soybean polysaccharide (SSPS).•Nano TiO2 improved mechanical, heat sealability, and physical properties of SSPS.•SSPS nanocomposites can use as active packaging against pathogenic microorganisms.•Permeability to both water vapour and oxygen decreased by incorporation of nanoTiO2. 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×(10−11gm−1s−1Pa−1) and oxygen permeability from 202 to 98 (cm3μmm−2d−1atm−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.
ISSN:0144-8617
1879-1344
DOI:10.1016/j.carbpol.2015.08.073