Food Tests Flashcards
1
Q
How to test for lipids
A
Emulsion test
- add ethanol then water
- then shake
- check for white milky emulsion
2
Q
How to test non reducing sugars
A
- heat with Benedict’s
- heat with acid and neutralise
- blue to red colour
3
Q
How to test rescuing sugars
A
- heat with Benedict’s
- blue to red
4
Q
How to test for proteins
A
- add biuriets test
- positive if purple
5
Q
Test for starch
A
- add iodine
- Positive if turn blue black
