Food tests

• Glucose - benedict‘s solution - hot water bath
• Starch - iodine
• Lipids - ethanol
• Protein - biuret solution
• Biuret - positive result - lilac to purple - negative result - blue - no change
• Ethanol - positive result - cloudy emulsion - negative result - colourless - no change
• Benedicts solution - positive result - green to brick-red - negative result - light blue - no change
• Iodine - positive result - blue-black - negative result - orange-brown - no change