food tests Flashcards
1
Q
what chemical is used to test for starch?
A
iodine solution
2
Q
what chemical is used to test for protein?
A
biuret solution
3
Q
what chemical is used to test for glucose (sugar)?
A
benedicts solution
4
Q
what colour does it turn if starch is present?
A
blue/black
5
Q
what colour does it turn if protein is present?
A
lilac/purple
6
Q
what colour does it turn if glucose (sugar) is present?
A
red
