fruit juice

fruit juice - 1 Introduction Hypothesis- Fruit Juice will...

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1 Introduction Hypothesis- Fruit Juice will contain sugars, lipids, and proteins, and not starch. Predictions From this hypothesis my prediction is that fruit juice will test positive in the Benedict’s test. The fruit juice will test negative in the starch test, and the fruit juice will test positive in the Sudan IV test and positive in the Biuret test. Results To determine if fruit juice contains sugars, lipids, proteins, or starch we had to run four different tests. The first test we ran was the Benedict’s test. This test checks for sugar. We placed 1ml of fruit juice and 1ml Benedict’s solution in a test tube, we then placed it in a boiling water bath for five minutes. After the five minutes we took the test tube out of the bath and noticed that the fruit juice reacted with the Benedict’s solution. This reaction showed that fruit juice tested positive for sugar. To determine if fruit juice contains starch we ran the starch test. First we placed 1ml of fruit juice in a test tube and added 1 drop of iodine to it. When we did this we notice no
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fruit juice - 1 Introduction Hypothesis- Fruit Juice will...

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