Tests

Cards (6)

Test for lipids
Shake with ethanol ( solvent for lipids as lipids are insoluble) THEN add water
From clear to a white milky emulsion
Test for Starch
Add iodine
From yellow to black / blue
Non-reducing sugar test
Carry out benedicts test and the solution should stay blue
In a new test tube add the non reducing sugar and acid to boil and hydrolyze
When cooled add alkali to neutralize and then heat with benedicts at 80C
From blue to in between green or brick red depends on how much glucose is in the solution
Test for proteins
Add biuret
From blue to lilac
Test for amylase
Amylase is an enzyme
Enzyme = protein
Protein = biuret test
Test for reducing sugars  
Boil at 80C with benedicts
From blue to brick red