Food Tests - Biology

• Test for starch


  If starch is present, iodine solution will turn from orange to blue/black.

  if there‘s no starch present it will stay orange
• Test for sugars (glucose)

  If sugar is present Benedict solution will change colour from blue to green/yellow if amount is low, red if amount is high
• Test for protein


  if protein is present Biuret Solution will turn from blue to purple
• Test for Lipids (fats)


  If lipids is present ethanol solution will turn into a white cloud emulsion