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  • Title: Eco-friendly soluble soybean polysaccharide/nanoclay Na+ bionanocomposite: Properties and characterization.
    Author: Salarbashi D, Noghabi MS, Bazzaz BSF, Shahabi-Ghahfarrokhi I, Jafari B, Ahmadi R.
    Journal: Carbohydr Polym; 2017 Aug 01; 169():524-532. PubMed ID: 28504176.
    Abstract:
    The impact of montmorillonite (MMT) as a nanofiller at different concentrations (5, 10, 15wt.%) on the physicochemical and functional properties of nanocomposite film based on soluble soybean polysaccharide (SSPS) was investigated. The results showed that an increase in MMT concentration was accompanied by a decrease in water solubility, thickness, and elongation at break. Furthermore, tensile strength increased when MMT concentration was increased to 10wt.%. Atomic force and scanning electron micrographs showed a significant agglomeration at MMT 15wt.%. With added MMT, the level of whiteness, greenness, and yellowness of SSPS film increased (P<0.05). Dynamic mechanical thermal analysis indicated that the storage modulus of nanocomposites increased when the MMT was increased to 10wt.%. Furthermore, Fourier transform infrared spectrophotometry demonstrated that no considerable changes occurred in the functional groups of the SSPS when MMT was added. Antimicrobial tests revealed that antibacterial and anti-mold activities were unlikely from reinforced nanocomposites.
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