Food Tests Flashcards
1
Q
How do you test for fats?
A
Add ethanol and water to the food
2
Q
How do you test for starch?
A
Add iodine to the food
3
Q
How do you test for protein?
A
Dissolve the food in water and add Biuret’s solution
4
Q
How do you test for sugar?
A
Add heat to the food and then add Benedict’s solution
5
Q
What is the colour change for fats?
A
Clear to cloudy
6
Q
What is the colour change for starch?
A
Orange-brown to blue-black
7
Q
What is the colour change for protein?
A
Blue to purple
8
Q
What is the colour change for sugar?
A
Blue to red-orange
9
Q
What is in Biuret’s solution?
A
Copper sulphate and dilute sodium hydroxide
10
Q
What is in Benedict’s solution?
A
Copper sulphate
