An initiative of :

Stichting Food-Info> E-numbers > E100-200

E132: Indigotine

CI 73015

Blue colour, naturally present in the shrub Indigofera tinctoria , though commercially it is produced synthetically.

Function & characteristics:
Blue food colour. Very soluble in water.

Many products.

Daily intake:
Up to 5 mg/kg body weight.

Side effects:
Side effects rarely occur in the concentrations used in foods. Rare allergic reactions have been described, due to coupling of the colour to (body) proteins. It can also function as a histamine liberator.

Dietary restrictions:
None; E132 can be consumed by all religious groups, vegans and vegetarians.


 is an initiative of Stichting Food-Info, The Netherlands

Free counters!