Tannic acid (ppm )
WVP × 1011 [g m
-1
s
-1
Pa
-1
]
O. P [cm
3
m/ (m
-2
day) ]
0
8.9±0.31a
226.18±7.92a
250
7.10±0.33b
200.11±874b
500
3.98±0.450c
143.57±2.25c
1000
161±0.13d
97.23±4.40d
Letters in table (a,b,c,d) presenting the tolerances of 0.05%.
Table 3:
Effect of tannic acid to permeability oxygen and water vapor on gelatin films.
