Organic Compound Lab
In class, students were paired up to test eight different foods for protein, starch, oil
(fat), and sugar.
For each substance we had to test, we added Biuret for protein, iodine
for starch, sudan III for fat, and benedict solution for sugar.
Out of the eight foods we
tested, my group tested whole milk.
Whole milk will test positive for protein and fat but not for starch and sugar.
The foods our class tested were an egg, crystal light, whole milk, apple jacks,
orange juice, fat free yogurt, easy cheese, and cookies.
What I found sort of
surprising was that the easy cheese contained protein, starch, fat, and sugar.
Some errors that could have occurred in the experiments include using too much
of your food substance, or adding too many milliliters of benedict solution, biuret,
sudan III, and iodine for the tests.