Commonly added to tablets and capsules; also used in ice cream,
sweets, baked goods, confectionery, biscuits. It is also used
diagnostically to check for coloured urine in kidney function
A blue synthetic coal tar dye, normally produced by a synthesis
of indoxyl by fusion of sodium phenylglycinate in a mixture
of caustic soda and sodamide.
This process was introduced following the discovery of the
chemical structure of indigo by the Prussian research chemist
J F W Adolf von Baeyer in 1883 and was in regular use by 1890.
Very little natural indigo from either Isatis tinctoria or Indigofera
has been produced commercially since the turn of the century.
Best avoided by people with allergy reactions as it may cause
skin sensitivity, a skin rash similar to nettle rash, itching,
high blood pressure and breathing problems.
Not recommended for consumption by children.
Banned in Norway.
foods, suppliers of serrano ham and spanish foods