rosein

Rosein is a natural pigment found in certain plants, primarily belonging to the family Rosaceae. It is responsible for contributing to the pink and red hues observed in the petals of some flowers, particularly roses. Chemically, rosein is classified as an anthocyanin, a group of water-soluble flavonoid pigments. The exact chemical structure of rosein can vary slightly depending on the specific plant species from which it is extracted. Its color is pH-dependent, exhibiting different shades from red to purple and even blue under varying acidic and alkaline conditions. While its primary role in plants is often related to attracting pollinators or protecting against UV radiation, rosein has also garnered interest for its potential antioxidant properties. Research has explored its use in food coloring and as a natural dye, though its widespread commercial application is less common compared to some other plant-derived pigments. The extraction and purification of rosein typically involve solvent-based methods. Further scientific investigation continues to explore its full range of biological activities and potential applications.