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4 Cards in this Set
- Front
- Back
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What is the test for sugars |
Add Benedicks regent to a sample heat it in a water bath that is set to 75°C it will change from blue where it starts to green then yellow then orange then brick red depending on the concentration of reducing sugars |
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What is the test for starch |
Add iodine solution to test sample if it’s present it will change from brownie orange to blue black colour |
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What is the test for lipids |
Shake substance with ethanol for about a minute then pour solution into water if lipids are present they will make a precipitate which will show up as milky |
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What is the test for proteins |
Add a few drops of potassium hydroxide solution to make solution alkaline and copper sulphate solution which is blue if there is no protein it will stay blue if there is it will turn purple |
