![]() Carotenoids are natural pigments with important biological activities, such as antioxidant and pro-vitamin A activity, that can be either extracted from plants and algae or synthesized by various microorganisms, including bacteria, yeasts, filamentous fungi, and microalgae. Natural colorants are derived from sources such as plants, insects, and microorganisms. However, many natural pigments present health-promoting activities that make them an interesting option for human use and consumption. ![]() Artificial colorants are the most used in food and pharmaceutical industries because of their advantages related to color range, price, resistance to oxygen degradation, and solubility. ![]() Pigments can be divided into four categories: natural, nature-identical, synthetic, and inorganic colors. ![]()
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