Table 2.
Rate constants (
k
) and activation energies (
E
a
) of PPO and POD in apple juice
Thermal treatment
k
R
2
E
a
PPO 70°C
0.0003
0.7380
2756.68 J/mol
PPO 80°C
0.0021
0.9749
PPO 90°C
0.0119
0.8487
POD 70°C
0.0022
0.0781
2166.11 J/mol
POD 80°C
0.0165
0.8746
POD 90°C
0.0393
0.8805