Testing for simple and complex sugars

The Benedicts test 

(Simple sugar test)
Aim: To test a sample of food determine whether it contains simple sugars.
Method:
1. Place about 2 mL of the sample into a test tube and then add 5 drops of Benedict' Solution.
2. Heat with a bunsen until it changes colour. Do not Boil

Results: A positive test for a simple sugar results in the Benedict's Solution changing from a blue colour to a orange colour.
No colour change is a negative result.

Discussion/Conclusion:
If the benedict changes colour it means that the food sample was a simple sugar. If it's not a simple sugar the benedict would stay the same colour.
We tested the sample and it turned what we had in our mind. It contained the simple sugar.
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(Complex Sugar test)
Aim: To test if a sample of food contains complex sugars.
Method:
1. Place about 2 mL of the sample in a test tube.
2. Add 3-5 drops of iodine and mix.

Results: If comlex sugar (Ex: Starch) are present the Iodine solution will change from a brown colour to blue/black colour. If the iodine solution does not change colour then no complex sugars are present.

Discussion/Conclusion:
If the iodine changes colour it means the sample contained complex sugar. If it stayed the same it doesn't contain any complex sugar. We tested the sample and it turned what we had in our mind. It contained the complex sugar.