Sudan IV is a diazo dye for staining lipids, lipoproteins, and triglycerides. It is used in Sudan staining, wherein it attaches to the fats chemically.
for lipid
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. 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.
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. 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.
Usually water is the best control substance for the Sudan IV test.
Egg yolk should have a reaction in the Sudan IV test, because the Sudan IV tests for lipids (fats), and the yolk does have some fat in it. The Sudan IV test should have not had a reaction for egg membrane or egg white. Hope that helped!
Sudan IV is a chemical that is only soluble in lipids. This indicates that a positive Sudan IV test means that the food is a significant source of lipids.
Ive searche on the Internet to find an answer to why it's called the 'Sudan' Iv test, but I haven't found a clear answer, but my guess is that the things used in the test, was first discovered in a mine in Sudan, that or the inventor was Sudanese
If no lipids are present, the red dye will sink to the bottom of the test tube. Sudan (iv) is not soluble in water but soluble in lipid.
it's a solution that is an indicator to test for lipids.
Sudan IV is only soluble in certain solvents.
Yes, hamburger juice has lipids. A way to test for lipids is to use Sudan IV and when exposed to Sudan IV it separates (due to its non polar characteristics) and there is a concentrate in the upper half of the test tube (the part that contains the lipids) which then gets dyed red. This equals positive lipids.
Sudan III is used to detect the presence of lipids.
I believe that Sudan IV tests for lipids and Triglycerides and so if pop didn't have those it probably wouldn't test positive.