Required Practicals Flashcards
1
Q
what colour does benedict turn in presence of sugar
A
brick red or yellow
2
Q
what colour does biuret solution turn in presence of protein
A
purple
3
Q
what colour does ethanol turn in presence of lipids
A
white emulsion
4
Q
how do you prepare a sample of food to be tested
A
grind the food sample with a mortar and pestle, mix with water and filter through a funnel
5
Q
what colour does iodine turn in presence of starch
A
turns from brown to blue-black
