food tests

• The Benedict's test is used to detect the presence of reducing sugars in a food sample.
• The Biuret test is used to detect the presence of proteins in a food sample.
• The iodine test is used to determine the amount of starch present in a food sample.
• iodine test: if positive for starch will turn from brown to blue-black
• Biuret test: if positive for protein will turn from blue to purple
• Benedict's solution test: if positive for reduced sugars will turn from blue to brick red
• The Sudan III test is to test for fats
• Sudan III test: if positive for lipids will form a layer of red/stains red