4. Conclusions
Frying temperature affected the quality of palm oil used for
potato chips preparation. The most abundant changes in oil quality
were observed during frying at the highest temperature180C.
Frying conditions influenced the glycidyl esters (GE). The composition of GE was correlated with the fatty acid profile of palm oil,
while its content during frying was correlated with some chemical
and physical parameters describing thermo-oxidative changes. The
GE content decreased with increasing frying time, as well as with
increasing frying temperature. The highest degree of GE degradation was observed during frying at 180C (87%), while the lowest
was obtained when frying was conducted at 150C (62%).
This work presents the accurate survey determining the effect
of frying temperature and time on oil degradation and GE content.