Apple

Apple


A 2 g piece of apple (left) was ground with 10 ml of dichloromethane and the resulting solution (center) was used in the lipid tests. A second sample was ground with 10 ml of water and the resulting solution (right) was used in the carbohydrate and protein tests.


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Lipid Tests

Grease Spot Test

Carbohydrate Tests

The Molisch Test

The Iodine/Potassium Iodide Test

Benedict's Test

Protein Tests

Biuret Test

Ninhydrin Test



Review the appearence of positive and negative tests:
Grease Spot - Halogenation - Molisch - Iodine/Potassium Iodide - Benedict's - Biuret - Ninhydrin