Production of peanut oils
Samples of peanut were supplied in February 2019 by a marketing
cooperative (Chiayi, Taiwan). The peanuts are separated into batches,
each batch were being weighted separately to 5kg, and roasted in a
roasting machine at 120°C, 140°C, or 160°C for 10 min individually.
Then, each sample of the roasted peanut was pressed for its oil using a
mechanical pressing machine, and after filtered, the oil is finally
collected.