641257.fig.006a
(a)
641257.fig.006b
(b)
Figure 6: Plot of the calcium carboxylates (1576 cm−1), (a), and zinc carboxylates (1540 cm−1), (b), peak area versus heating time at constant temperature of 30°C (), 50°C (□), and 70°C () °C for one year aged sterilized samples.