Does milk contain lipids? Does it work in Paper spot test? How about in Sudan IV test?

Question

Does milk contain lipids? Does it work in Paper spot test? How about in Sudan IV test?

Answer 1

Like lipids, the chemical Sudan IV is not soluble in water; it is, however, soluble in lipids. Therefore to test for the presence of lipids in a solution you will use a Sudan IV Test.

Yes.

Yes.

Yes.

In this test dark red Sudan IV is added to a solution along with ethanol to dissolve any possible lipids. If lipids are present the Sudan IV will stain them reddish-orange, giving a positive test.http://biology.unm.edu/ccouncil/Biology_...