Author: Ivan Red Jr.
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Last Updated:
January 27, 2026
Cochineal or E 120 (carminic acid, carmine) is a natural red dye. It is obtained from insects Dactylopius coccus, which live in different species of fleshy plants. The daily allowable count
Cochineal or E 120 (carminic acid, carmine) is a natural red dye. It is obtained from insects Dactylopius coccus, which live in different species of fleshy plants. The daily allowable amount is 5 mg per 1 kg of body weight.
Carmine can cause allergic contact reactions (in cosmetics). No side effects were observed at concentrations used in foodstuffs.
The substance is used for coloring jams, jams, beverages; also in cosmetics and in the production of paints for painting.
Carmine is derived from insects (beetles) that parasitize some plants.
Carminic acid is a pigment derived from the body of female insects Coccus cacti or Dactylopius coccus or from their eggs. To prepare a kilogram of the substance requires a huge amount of insects, which are collected before laying their eggs. During this period, they acquire a red color. The outer part of the insects is dried, treated with a solvent, and the remaining parts are filtered.
Cochineal is more expensive than other dyes because its extraction is a labor-intensive process. It has a deep purple-red color.
The color of carminic acid depends on the acidic environment. At pH = 3 (acidic environment) the color is orange, red at neutral pH = 5.5 and purple at pH = 7.
This acid combines with cations of metals, such as aluminum, resulting in diamond-red pigments.