2.7 Test Starch and Glucose

Test For Glucose - C6H12O6

1. put the glucose powder in the test tube with water and dissolve it.
2. add the Benedict's reagent 'blue'. Test tube would become blue colour.
3. place the test tube in he water bath (60-70c) and put it for 2/3 mins.
4. take the test tube out and the result you get is orange colour and it will soon become green.

Test For Starch

1. white powder into the spotting tiles and add iodine solution (brown colour).
2. the change is from brown colour to very dark blue back colour. ( positive test).