Film type

Treatment

Glycerol: sorbitol

Thickness

(micrometer)

Glycerol concentration (g/g gelatin)

Sorbitol concentration

(g/g gelatin)

Water vapor permeability × 10 (g/mm /kPa/h/m²)

Bovine gelatin with high Bloom values containing clay nanoparticles

0:0

30:0

25:5

20:10

15:15

20:20

5:25

0:30

0.00

0.05

0.10

0.15

0.20

0.25

0.30

0.00

0.30

0.25

0.20

0.15

0.10

0.05

0.00

1.95 a

0,92 def

0.63 f

0.75 ef

1.14 cde

1.22cd

1.51 bc

1.84 ab

Bovine gelatin with low Bloom values containing clay nanoparticles

0:0

30:0

25;5

20:10

15:15

20:20

5:25

0:30

0.00

0.05

0.10

0.15

0.20

0.25

0.30

0.00

0.30

0.25

0.20

0.15

0.10

0.05

0.00

1.21 ab

0.35 d

0.64 cd

0.79 bcd

1.06 bc

1.25 ab

1.61 a

1.68 a

Fish-skin gelatin containing clay nanoparticles

0:0

30:0

25:5

20:10

15:15

20:20

5:25

0:30

0.00

0.05

0.10

0.15

0.20

0.25

0.30

0.00

0.30

0.25

0.20

0.15

0.10

0.05

0.00

1.86 a

0.21 f

0.54 e

0.81 d

0.91 d

1.31 b

1.09 c

1.30