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Starch Starch as well as sugars are produced in plants. Starch is found in many foodstuffs such as: Bread, potatoes, rice, pasta and maize Starch and sugars.

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Presentation on theme: "Starch Starch as well as sugars are produced in plants. Starch is found in many foodstuffs such as: Bread, potatoes, rice, pasta and maize Starch and sugars."— Presentation transcript:

1 Starch Starch as well as sugars are produced in plants. Starch is found in many foodstuffs such as: Bread, potatoes, rice, pasta and maize Starch and sugars belong to the same family of chemicals: carbohydrates

2 Starch Properties PropertiesStarch Appearance Taste Solubility pH Conduction Benedict’s solution test

3 Testing with Iodine Solution Iodine solution can be used to test for starch. The positive test is when the iodine changes from orange to blue/black in the presence of starch.

4 Carry out the following experiment: Put a little of each solid (starch, glucose, salt, sucrose) into separate dimples on the tile. Add 2 drops of iodine solution to each solid Record your results in a table.

5 SugarResult with Iodine Solution Starch Glucose Salt Sucrose

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