Test for protein Flashcards
Food
1
Q
Name a soluble protein to dissolve into water.
A
milk.
2
Q
What colourless chemical do you add to solution?
A
sodium hydroxide.
3
Q
What colour is sodium hydroxide?
A
colourless.
4
Q
Add a few drops of what to water for control? (blue in colour).
A
dilute copper sulfate.
5
Q
What colour shows proteins are present?
A
purple-violet.
6
Q
What colour shows there is no protein present?
A
blue.
7
Q
What are three ways you can name the test for protein?
A
biuret test
sodium hydroxide
copper sulphate solution
