UV Radiation Induced Cross-Linking of Whey Protein Isolate-Based Films
Table 3
Water vapor transmission rate and oxygen permeability normalized to 100 µm film thickness as a function of the UV dose. Different letters indicate significant differences .
UV-C dose (per side) [J/cm2]
Radiation time (per side) [min]
Water vapor transmission rate Q100 [g/(m2 d)]
Oxygen permeability Q100 [cm3/(m2 d bar)]
0.0
0
92.7 ± 44.0
11.4 ± 3.1
1.2
5
48.1 ± 11.7
24.3 ± 8.5
2.8
10
48.0 ± 17.5
16.5 ± 4.1
11.6
50
59.1 ± 22.4
16.0 ± 2.1
19.9
100
61.8 ± 18.9
17.0 ± 4.9
42.0
200
44.5 ± 8.2
13.9 ± 2.0
Twofold determination. Mean of minimum and maximum value.
