Kutein

Kutein is a naturally occurring pigment belonging to the carotenoid family. It is found in various plants, notably in the petals of certain flowers. Kutein's chemical structure is characterized by a long, conjugated system of double bonds, which is responsible for its yellow to orange color. It is an isomer of lutein, another well-known carotenoid, and they share a similar molecular formula and a basic xanthophyll structure. However, kutein differs from lutein in the position of one double bond within its ring structure. This subtle difference impacts its physical and chemical properties, though both are considered antioxidants. In the plant kingdom, kutein plays a role in photosynthesis and photoprotection, helping to dissipate excess light energy. Research into kutein is ongoing, with some studies exploring its potential biological activities in humans, similar to other carotenoids. Its presence in edible plants suggests potential dietary relevance, although it is less extensively studied than some of its more abundant carotenoid counterparts. Extraction and purification of kutein from natural sources are common methods for obtaining it for research purposes.