Food Tests

Question 1

Describe how to test foods for starch, lipids, sugar and protein

Answer 1

Biuret test for protein, Benedict test (with heat) for sugar, Iodine test for starch, filter paper for Fat, lipids.

Question 2

Describe the positive result for each food test

Answer 2

Biuret = Blue to Purple, Benedict = blue to brick red, Iodine = Brown to Blue/Black, Filter Paper has a translucent stain remaining