The cleaned pieces of potatoes (100 g/cycle) were poured
into frying oil in a 5 L capacity fryer and frying process was continued at constant temperature for 5 min per cycle. After 2 h
frying (24 batch frying cycles), frying oil samples were taken into
a screw caped vial, cooled down to room temperature and stored
in refrigerator till analysis. Total 7 samples of frying oil were collected
after each 2 h frying period. The volume of oil was not
replenished throughout the frying process