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Detection of Water soluble coal tar colour in Chillies powder

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Adulterants in Milk and Milk Products

Adulterants in Spices

Foreign resinSoap stone or other earthy materialStarch in Asafoetida (Hing)

Coated with mineral oilLight black pepperPapaya seeds in Black pepper

Artificial coloursBrick powder, salt powder or talc, powderMalachite greenWater soluble coal tar colour in Chillies powder

Water soluble artificial colour can be detected by sprinkling a small quantity of chillies or turmeric powder on the surface of water contained in a glass tumbler. The water soluble colour will immediately start descending in colour streaks.

Cassia bark in Cinnamon

Volatile oil extracted (exhausted cloves) in Cloves

Grass seeds coloured with charcoal dust in Cumin seeds

Added starchDirt, dust, straw, insect, damaged seeds, other seeds, rodent hair and excretaPowdered bran and saw dust in Spices 

Chalk powder or yellow soap stone powderColoured saw dust in Turmeric powder

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