Coloring food with iron-complexes

Food or edible material: processes – compositions – and products – Addition of dye or pigment – including optical brightener

Patent

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426540, A23L 127

Patent

active

040189074

ABSTRACT:
The reaction of ferric ions with compounds having a 3 or 5-hydroxy-4-pyrone structure produce novel water soluble red to burgundy colors which are used to color foodstuffs such as beverages and pet foods.

REFERENCES:
patent: 3165535 (1965-01-01), Kehol
Chemical Abstracts vol. 75 "Synthesis of Maltol Iron (III) Complexes", 115362k 1970, Kidani.

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