Gulf of Kassari, Estonia contains a large amount of red algae which has been used for more than 50 years as a source to produce a gelling agent, for instance for making marmalade. Scientific research shows that one of its most valuable compounds is natural colorant. Algae produce pigment to absorb the light energy needed for vital activities in deep and dark seawater (410 m deep). Isolated cases of the use of red pigment of red algae are known, but it has not been widely adopted in the cosmetics and food sector. Highpigmented algae make up the largest industrially used red algae in the Baltic Sea and are therefore an important renewable resource for both Estonia and Europe.
Ingredients
Red pigment
Method
The algae is crushed, after which the components are extracted from the raw material by soaking in water. The desired color pigment is gradually filtered and extracted from all other algae compounds.
Usage
The pigment can be used in the food, cosmetic, and textile industries. While the widely used red dye carmine is obtained from insects, the colorant from algae is herbal. In addition, due to the strong fluorescence of the molecules of the substance, it can be used in biochemical research and medical diagnostics.
Author
Vetik OÜ (Tanel Ilmjärv, Valmar Kasuk).
EKA Materjalikogu
materials@artun.ee
+372 5265956
Eesti Kunstiakadeemia
Kotzebue 1, Tallinn 10412
artun.ee