Milk Product Analysis - Sudan Red Test for Lipids

Sudan Red Test is used to identify Lipids
1 drop of each sample was added to Whatmen filter paper and allowed to dry.
The filter paper was then submerged in a 0.1% Sudan Red IV solution dissolved in 95% ethanol, for a 5 min duration.
The filter paper was removed from the Sudan Red solution and washed in a solution of 95% ethanol.
Once washed the filter paper was left a air dry.
Take note that Sudan Red is a known carcinogen. Please read all MSDS sheets before using.
Red Stain = Lipids
Negative Control = Distilled Water
Positive Control = Olive Oil
Unknowns Tested = 12
Alphabetical list of Samples:
0% Skim Milk, 2% Milk, 2% Lactose-free Milk, 2%+ Milk (+ Protein), 5% Light Cream, 10% Table Cream, 35% Whipping Cream, Almond Milk, Cashew Milk, Coconut Milk , Oat Milk, Soy Milk