observed that the contribution of polymers in the total polar material increased consistently
with frying time, achieving the maximum values of 8 and 15.6% for frying at 185 and 215 C in the canola oil, respectively. The amount of polymers generated at 185 C at the end of the seven-day frying period was comparable to the third day of frying at 215 C. In the Omar et al.’s (2010) research, after five days of frying, the palmbased solid frying shortening provided 2.67% and standard palm olein provided 3.10% of the total polymeric material.