Biodegradable Films Based on Gelatin and Montmorillonite Produced by Spreading

Table 1

Average thickness, moisture content, and contact angle of the films (± standard deviation) prepared with 5 g of gelatin/100 g NFS and different MMT concentrations.

MMT (g of montmorillonite/; 100 g of gelatin)	Thickness (mm)	Moisture content (%)	Angle with upper surface (°)
0	0.071 ± 0.007^a	20.4 ± 1.4^a	90.3 ± 10.7^a
5	0.077 ± 0.005^b	18.3 ± 1.1^b	94.6 ± 2.2^a
10	0.080 ± 0.010^b	17.3 ± 0.9^b	82.9 ± 8.0^a

Values with different characters differ significantly in the same column ().