Food Tests Flashcards
1
Q
Starch
A
3ml starch 5 drops iodine
Yes: blue/black
No: orange
2
Q
Protein
A
2ml protein 2 drops biuret solution
Yes: purple
No: no change (blue)
3
Q
Lipids
A
Add 5ml of your test solution to a test tube
Add 3 drops of Sudan III
Gently shake
Positive-orange
Negative-no change
4
Q
Simple sugars
A
Add 5ml of your solution to a test tube
Add 10 drops of Benedicts solution
Place it in a 70-80 degree water bath for 5 minutes
Positive-orange
Negative- blue
5
Q
Safety
A
Wear goggles
6
Q
Method
A
Grind a small sample of food with a pestle and mortar and add it to distilled water
Stir to allow some of the food dissolve
Filter using filter paper
Test for the required food
