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Current Category » Practicals on Technology of Milk & Milk Products

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.

Current Category » Practicals on Technology of Milk & Milk Products