Food Tests Flashcards
1
Q
What is the test for starch?
A
Iodine test
Yellow-red iodine solution turns blue-black if starch is present.
2
Q
What is the test for sugars?
A
Benedict’s test
Blue Benedict’s solution turns brick red on heating if a sugar is present.
3
Q
What is the test for proteins?
A
Biuret test
Blue biuret reagent turns purple if proteins are present.
4
Q
What is the test for lipids?
A
Ethanol test
Ethanol is added to a solution and a cloudy white layer is formed if lipids are present.
