Science Testing

When you add 1 ml of Biuret’s solution and the food turns purple then the food contains protein.

When you put the food on the greaseproof paper if a translucent grease spot is formed then the food contains fats (lipids)

When you add 3 drops of iodine solution onto the food and if the colour turns dark blue-black the food contains starch.

You add 1ml of Benedict’s solution to each test tube and fill a 400ml breaker with boiled water and set the test tube in and then it changes to different colours and has different meanings. Blue green yellow orange red

No reducing sugar

Traceable

Low

Moderate

High