In this research, the relationships between the amylase
type time–temperature indicator’s color and time, temperature
were studied at different amylase contents, and the
mathematical models of each TTI were simulated. The activation
energies of the amylase type time–temperature indicators
were ranged from 102 to 110 kJ/mol, and it could be
applied to inspect the food attribute decrease, which is
mainly caused by the growth of microorganism, nonenzyme
browning and the loss of nutrition. By modifying
of the proportion of amylase and starch, could be modified, and the activation
energy of the TTI would be changed to fit different food
with different shelf-life. With the equations in Table 5, it
is simple to obtain the color change rate k and constant b
at a certain temperature and could calculate
the efficient exposure time at the temperature of foodstuffs
conveniently.