Food Tests

Question 1

how to test for sugar

Answer 1

• Add a few drops of Benadict’s Solution to the food solution
• Heat the test tube in a water bath
• If solution turns orange-red the food contains sugar

Question 2

How to test for starch

Answer 2

• Add a few drops of iodine solution to the food solutions

- If solution turns dark blue-black the food contains starch

Question 3

How to test for protein

Answer 3

• Add copper sulfate solution to the food solution
• Add a few drops of sodium hydroxide to the solution
• If solution turns purple the food contains protein

Question 4

How to test for lipids

Answer 4

• Rub some food onto the filter paper
• Hold the paper to the light
• If the paper goes translucent it contains lipids