Food test Flashcards
1
Q
How test reducing sugar
A
-> Add Benedict’s reagent to the food
-> heat the test sample in water bath
2
Q
Result for Benedict’s test
A
blue -> brick red
3
Q
How test starch
A
add iodine solution to the food
4
Q
Result for Iodine test
A
orange-brown -> blue-black
5
Q
How test for protein
A
Add biuret solution to food
6
Q
Result for biuret test
A
blue -> violet/purple
7
Q
How test for vitamin C
A
- add 1cm3 of DCPIP solution to a test tube
- add a small amount of food sample (as a solution)
8
Q
Result for DCPIP solution
A
the blue colour of the dye disappearing
9
Q
How test for lipid or fat
A
- add ethanol
