Section Six (food tests) Flashcards
1
Q
What solution is used to test for starch?
A
Iodine.
2
Q
What colour will iodine turn if starch is present?
A
Blue/black.
3
Q
What solution is used to test for protein?
A
Biuret’s solution.
4
Q
What colour will the solution turn if protein is present?
A
Purple/lilac.
5
Q
What solution is used to test for reducing sugars?
A
Benedict’s reagent.
6
Q
What colour will the solution turn if reducing sugars are present?
A
Green, yellow, orange & brick red.
7
Q
What solution is used to test for lipids?
A
Ethanol & water.
8
Q
What colour will the solution turn if lipids are present?
A
Cloudy, white emulsion will form.
