Although traditional absorbent pads

Although traditional absorbent pads have been used widely for food
preservation, packaging systems provided with them may have some
drawbacks regarding food preservation. In this context, Kannankeril
and Cruikshank (1993) have indicated that the absorbent capability of
the pad may be limited by the weight of the packaged food product,
not allowing absorbing all the liquid exuded by the food. In this regard,
Miller (1983) and Pearlstein (1998) have stated that reverse migration
of exuded liquids may occur when the absorbent pad is subjected to a
compression load generated by the packaged food product. It is possible
that an excess of the exuded liquid tend to pool on the upper surface of
the absorbent pad until the packaging is tilted so that the liquid can run
off and be successfully absorbed. Another limitation is the perforation of
outer layers of absorbent pad. These film perforations should be provided
in a proper distance in order to prevent film tearing, and consequently
releasing the absorbent material.