food+lab

Food Lab

Problem: To identify organic compounds in foods

Materials: Baby food: garden vegetable, sweet potatoes, sweet potato and turkey, macaroni and cheese, apple, strawberry and bananas, and apple blueberry Benedicts solution iodine solution biurets solution hot water bath test tubes test racks

Hypothesis:

Variables: independent Dependent

Procedure.

For each type of baby food the groups will be performing the following tests Complex carbohydrate: Put some baby food into a test tube, add iodine solution to the food. Record the color change. Simple carbohydrate: Put some baby food into a test tube, add benedict solution. There will be no color change. Heat the test tube in a water bath. After a few minutes, record the color change. Proteins: Put some baby food into a test tube, add biurets solution to the test tube. Record the color change.

Analysis
 * 1) On the basis of your tests, which food could be used as a source of protein? Glucose? Starch?
 * 2) Besides the ones you tested, which other food could be used as sources of protein? Glucose? Starch?
 * 3) How might the original colors of the test materials affect the results?
 * 4) Were there any substances you were surprised by?
 * 5) How does this experiment relate to your every day lives?
 * 6) Why is it important to know what kind of nutrients are in your food?