Food tests Flashcards
1
Q
What substance is used to test for starch
A
Iodine solution
2
Q
What substance is used to test for the presence of sugar
A
Benedict’s solution
3
Q
What is used to test for the presence of proteins
A
Biuret solution
4
Q
What is used to test for lipids
A
Ethanol emulsion.
5
Q
What happens to iodine in the presence of starch
A
It turns blue-black
6
Q
What happens to Benedict’s solution in the presence of sugar when heated
A
It turns from blue to brick red
7
Q
What happens to biuret solution in the presence of protein
A
It turns purple
8
Q
What shows a positive result for the emulsion test
A
The solution turns white when mixed.
