DETECTION OF FOOD ADULTERATION IN TURMERIC

ADULTERANT

1. Coloured saw dust, rice, wheat or jowar flour.

TEST

1. Concentrated hydrochloric acid is added to a solution of turmeric powder. A pink colour is developed upon diluting it with water. If only turmeric is present the pink colour disappears.

DETECTION OF ADULTERATION IN CLOVES, CHILLI POWDER, COFFEE AND CINNAMON

CLOVES

ADULTERANT: Essential oils may have been removed

TEST: If so, the cloves will be shrunken in appearance.

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CHILLI POWDER

ADULTERANT: Saw dust and colour may be added.

TEST: Sprinkle on the surface of a glass of water. Wood shavings float and added colour will colour the water.

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COFFEE

ADULTERANT: Chicory

TEST: Shake a small portion in cold water. Coffee will float while the chicory will sink staining the water a brownish red.

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CINNAMON

ADULTERANT: Cassia bark which resembles cinnamon in taste and odour.

TEST: Added colour may come off in water.

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