Effect of sulfur nanoparticles on properties of alginate-based films for active food packaging applications

Sulfur nanoparticles (SNPs) were prepared and embedded in calcium cross-linked alginate films in varying concentration, and their effect on the functional properties of the films were studied. The FE-SEM image showed uniform dispersion of up to 2 wt% of SNPs, above which aggregation was observed. The addition of 2 wt% of SNPs showed the best results of the tensile and water vapor barrier properties, with an increase in 12% and 41%, respectively....