ADULTERATION TEST REPORT DATE:05/04/09
S.No
Food Sample
1 Turmeric
2 Chillies
Adulteration Metanil Yellow
Test Method Add few drops of Conc.HCL. to Sample.Instant apperance of violet colour,which appears on dilution with water,indicates pure turmeric.If colour persists Metanil Yellow is present.
Brick powder grit, sand,dirt,filth etc.
i) Pour the sample in a beaker containing a mixture of chloroform and carbon Tetrachloride.Brick powder and grit will seetle at the bottom. Saw dust and colour ii) Sprinkle on the surface of water, Sawdust floats.Added colour will make the water coloured.
Adultered/Not Adultered Not Adultered.
Not Adultered.
Not Adultered.
3 Corriander Powder
Dung powder
Soak in water. Dung will float and can be easily detected by its foul smell.
Not Adultered.
4 Rawa
Iron filling to add Weight
Pass magnet through the rawa.Iron fillings No iron fillings added. will cling to it.
5 Sugar
Chalk Powder
Dissolve in a glass of water.Chalk will settle down in the bottom.
Not Adultered
6 Common salt
White powdered stone,chalk
Stir a spoonful of simple salt in a glass of Water.The presence of chalk will make the solution white.
Not Adultered
7 Wheat flour
Excessive sand & Grit
Shake a little quantity of sample with about 10 ml of carbon tertra chloride and allow to stand.Grit and sandy matter will
collect at the bottom.