Food tests Flashcards
0
Q
What is a positive result for the starch test?
A
If the food stuff turns black
1
Q
What is the way of testing for starch in food????
A
Adding a few drops of iodine
2
Q
What is the method for finding protein in food?
A
Add 2 cm cubed of biuret solution
3
Q
What is the positive result for the protein test?
A
If the colour changes to purple
4
Q
What is the method for finding fat in food?
A
- Add a little distilled water and shake
2. add 2 cm cubed of Ethanol
5
Q
What is the positive result for the fat test?
A
If it has gone cloudy and a precipitate has formed
6
Q
What is the method for testing for sugar in food?
A
Heat water then add benedict’s solution
7
Q
What is the positive result for the sugar test?
A
It goes brown
