Lab #8- Food & Nutrition

Aim: To identify the different nutrients in various food samples.

Apparatus & Material: test tubes, Bunsen burner, test tube rack, ethanol, iodine solution, copper (II) sulphate, sodium hydroxide, benedict's solution, crackers, bread, biscuits, oil and glucose.

Method:

Observation/Results:

STARCH TEST RESULTS

RESULTS FOR BIURET TEST

RESULTS OF REDUCING SUGAR TEST

RESULTS OF FATS TEST

Discussion:

(Use the questions provided below to assist you in writing your discussion in paragraph format. DONOT write the questions in your lab book.)

1. What is a reagent?

2. Explain how a researcher can determine if starch is present in food.

3. Explain how a researcher can determine if protein is present in food.

4. Explain how a researcher can determine if reducing sugar is present in food.

5. Explain how a researcher can determine if fat is present in food.

6. Why is it important to know what nutrients are present in foods?

Conclusion:

(State the outcome of the experiment based on the aim and give reason to support based on the results.)