Nanoclay particles were included in a gelatin matrix and gelatin–clay nanocomposites with different clay
levels were produced, successfully. Mechanical properties of gelatin–clay nanocomposite films were
measured using a texture analyzer by tensile test. Water vapor permeability, solubility, opacity, and color
parameters were also determined. In the absence of nanoclay water vapor permeability was 0.86 g mm/
kPa m
2h and with addition of 18% nanoclay it decreased to 0.42 g mm/kPa m
2
h. Tensile strength of films
was directly proportional to clay content, while addition of clay caused a reduction in elongation and
water vapor permeability of films. Nanoclay was able to improve some physical and mechanical proper-ties of gelatin biofilms.
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