Chemical tests
- Created by: Krystina
- Created on: 17-04-13 22:44
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- Chemical tests
- Reducing surgars
- Negative result, colour remains blue
- Benedict's reagent
- Heat in water bath
- Positive result, colour goes redish
- Starch
- Iodine solution
- Positive result, colour changes blue-black
- Negative result, colour remains orange-brown
- Protein
- Biuret reagent
- Do not heat
- Positive result, colour changes purple
- Negative results, colour stays blue
- Lipids
- Ethanol or lipids will leave a translucent stain on filter paper
- Negative result, no emulsion will be formed
- Positive result, a cloudy white emulsion will be formed
- Reducing surgars
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