The technical and regulatory aspects of different natural blue pigments and colourings used in foods

The current demand for manufacturing food products with natural ingredients has increased the market interest and research advances in the search for natural blue colourants. For example, Phycocyanin is a water-soluble blue pigment-protein complex commonly found in cyanobacteria and red algae. In this article, FoodLegal explores the applications of different natural pigments used as colourants in foods.