Define procedure for testing the presence of sugar in milk, Biology

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Define Procedure for Testing the Presence of Sugar in Milk?

1. Take 0.1 ml of milk sample in a test tube.

2. Add 0.2 ml of resorcinol solution (0.05 gm of resorcinol in 100 ml of dilute HCl 1part HCl:2 parts of distilled water).

3. Boil for 30 seconds and observe for colour change.

4. Appearance of off-white colour indicates positive test.


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