Effect of potassium sorbate on antimicrobial and physical properties of starch–clay nanocomposite films

Researchers at the Tarbiat Modares University in Iran produced active starch–clay nanocomposite films which contained potassium sorbate (PS) and their physical, mechanical and antimicrobial properties were evaluated.
The results showed that 5% of the PS did not produce antimicrobial property in the film, but by increasing the content of the additive in film formulation, antimicrobial effect increased. PS increased water permeability and elongation at break of the films, but decreased tensile strength. The rate of PS migration into the semi-solid medium in starch–nanocomposites was lower than starch films. An article about the research is published in Carbohydrate Polymers.
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