Detection of Addition of Starch in Milk

0 84

Detection of Addition of Starch in Milk

Objectives:

To detect addition of starch

Relevant information:

Iodine solution gives intense blue colour with starch due to formation of an unstable complex starch ode compound.

Material required:

i) Milk
ii) 1 % Iodine solution.

Apparatus:

Test tubes.

Procedure:

1. Take about 3 ml of well mixed milk in a test tube.
2. Boil the milk over a burner.
3. Cool and add on drop of 1 % iodine solution and observe the colour.
4. Presence of blue or bluish violet colours indicates the presence of starch / central flours added in milk.

Leave A Reply

Your email address will not be published.