unit 1, Food Tests Flashcards
1
Q
Steps for benedicts test
A
add in few drops of benedicts solution
add into hot water
2
Q
What test is used for starch
A
Iodine
3
Q
What test is used for lipids
A
Ethanol
4
Q
What test is used for reducing sugars
A
benedicts
5
Q
What test is used for protein
A
biuret
6
Q
What colour does the protein test turn if protein is present
A
Purple
7
Q
What colour does the lipid test turn
A
Cloudy/milky
8
Q
What colour does the starch test turn
A
blue/black
9
Q
What colour does benedicts test turn
A
brick red with reducing sugars
green/yellow if sugar present is low
10
Q
Steps before testing
A
- crush up food sample until fine powder
- add water to food sample in a beaker
- shake until dissolved in
- add equal amounts into test tubes
11
Q
what is the lipid test known as
A
the Emulsion test
