Food Tests

• Benedict's Test is used to test for...

  Glucose
• Biuret Test is used to test for....

  Protein
• The emulsion test is used to test for...

  Lipid
• Iodine is used to test for. ..

  Starch
• If starch is present the solution..

  Will turn blue black
• If glucose is present the solution...

  Will turn green, orange or red
• If protein is present the solution...

  Will turn purple
• If fat is present..

  A milky white emulsion will appear
• Bendict's Test Method


  Need to heat in a water bath
• Emulsion Test Method

  Add ethanol, mix and add water.
• Biuret Test Method

  Add copper sulphate and sodium hydroxide