The metallic attribute was characteristic of the initiation
oxidation stage, and its concentration increased as the
proliferation oxidative reaction reached its peak. For this
reason, significant rancid differences (p5 0.05) between the
score values were found for the Chip-A and Chip-C
treatments, and the Chip-B treatments. The sensory perception
of metallic attribute was intensified as the effect of the
concentration of PV values found in the treatments (PV93.1 meq/kg of oil for Chip-A, and 80.7 meq O2/kg of oil of
Chip-C, compared to 123.3 meq O2/kg of oil of Chip-B). The
untrained panel evaluated the control treatment as less
oxidized as shown on Figure 1. The Chip-B chips treatment,
due to continuous frying method, showed greater oxidation
(p5 0.05) of all the evaluated attributes.