2.8. Frying process
Potatoes were peeled and cut into pieces (approx 5 cm3) and
were fried in the frying oil at constant temperature at three frying
times. Frying experiments were conducted in duplicate in
each frying medium.
2.9. Evaluation by FT-IR
FT-IR spectra of oil samples before and after frying were
recorded with the help of a Fourier Transform Spectroscopy
Model I-R Prestige 21 Shimadzu. It is used to study the saturation
and unsaturation composition of heated and unheated
oils at room temperature for monitoring the oxidation process
in oils