Food Tests Flashcards
(10 cards)
1
Q
What does Benedict’s solution test for?
A
Sugar
2
Q
What does it mean if the Benedict’s solution stays blue?
A
No glucose present
3
Q
What does it mean if the Benedict’s solution turns red?
A
High amounts of glucose
4
Q
What’s the test for carbohydrates?
A
Iodine
5
Q
What is iodine’s original colour and what does it turn if glucose is present?
A
Positive: Turns blue/black
Original colour: Brown
6
Q
What is the test for fats?
A
Ethanol
7
Q
What happens to the solution if it tests positive for fats?
A
Cloudy, white emulsion forms
8
Q
What is the test for proteins?
A
Biuret
9
Q
What colour does the solution turn if it tests positive for proteins?
A
Pink/purple
10
Q
What is the original colour of biuret?
A
Blue
