Food Tests Flashcards
1
Q
Test for reducing sugar
A
Add Benedicts and heat, turns blue to brick red
2
Q
Non-reducing sugar test
A
Hydrolyse with HCl then add benedicts and heat. Turns blue to brick red
3
Q
Test for starch
A
Add drops of iodine solution. Turns from orange to blue-black
4
Q
Test for protein
A
Add biuret Reagent. Turns from blue to purple
5
Q
Test for lipids
A
Add ethanol and equal volume of water. Turns cloudy, emulsion formed
