ABSTRACT
It encompasses the characteristics of the first type and in
addition, contains a response mechanism that responds to
the signal (sensor, indicator, or integrator) mechanism.
Interactive or responsive intelligent packaging has sensors
incorporated into the package that start to neutralize or undo
the negative changes occurring in the food product.[5]
To date, four types of applications of intelligent packa-
ging systems are used to: 1) improve product quality and
product value (quality indicators, temperature and time-
temperature indicators, and gas concentration indicators);
2) provide more convenience (quality, distribution, and
preparation/cooking methods); 3) change gas permeability
properties; and 4) provide protection against theft, counter-
feiting, and tampering. Within these applications, several
other examples of intelligent packaging exist and will be
discussed in the next few paragraphs. Nevertheless, all types
of intelligent packaging systems are fabricated to be very
user friendly and cost effective[2] and to benefit the proces-
sor, distributor, and consumer.[2] Table 2 summarizes the
applications of passive, active, and intelligent packaging.
