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Saturated fat levels in different types of cooking oilFeatured science projectScience project video


It was observed that the iodine and peanut oil mixture took the longest to revert to the original color, while the canola oil took the shortest amount of time.

Oil type Cooking oil type, content and time for iodine color to clear (in seconds)
  Peanut Canola Corn Soya bean Olive
Saturated oil % 18% 7% 13% 15% 14%
Time for iodine to clear 38 12 25 27 27

The results were plotted onto a graph, as shown below.

Cooking oil saturated fat science fair projects

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Complexity level:
Project cost ($):
Time required:
1 hour for preparation, 1 hour for observation
Material availability:
Easily found. Iodine solution may be obtained from a chemist
Safety concerns: