Nutrition Experiments

Hi everyone! Welcome to another post! For science, we have been doing experiments to test out if different kinds of foods have simple sugars, complex sugars and proteins in it. We did a total of 3 experiments with 6 different foods. Each experiment had different methods for it, and we had to work in groups, I was with Alliah, Emily, Milan, and Lucy.

Methods:

Complex Sugars: - Iodine
We first put the food in a test tube, we then put around 3 - 5 drops of iodine in the test tube to see if it would change colour to a blue/black solution. - If the solution turns black or blue then there is a complex sugar present. -

Simple Sugars: - Benedicts Solution
We again put the food in the test tube but this time we put 2ml of benedicts solution and heated it for one minute. - If the solution turns orange and green then it means there are simple sugars present in that food. -

Protein: - NaOH, CuSO
Again, we put the food in the test tube and then we add five drops of each chemical, NaOH (Sodium Hydroxide) and CuSO (Copper Sulfate). After that, we then gently mixed it side to side so that none of the contents would spill out.

EXPERIMENTS

Complex Sugar - Hypothesis
We thought that bread, potato, milk, and egg had complex sugars in it.

Bread	Yes
Potato	Yes
Egg	No
Apple	No
Milk	No
Sugar	No

Simple sugar - Hypothesis
For this experiment, we thought that apple and sugar had simple sugars in it.

Bread	No
Potato	No
Egg	No
Apple	Yes
Milk	No
Sugar	No

Though the sugar didn't really work, sugar is a simple sugar. 

Proteins - Hypothesis 

For the last experiment we though that egg and milk had protein in it. 

Bread	No
Potato	No
Egg	Yes
Apple	No
Milk	Yes
Sugar	No