Commercial lutein is mainly extracted and isolated from marigold oleoresin. However, lutein is insoluble in water and is slightly soluble in oil. In addition, lutein itself is highly oxidizable, and, as a carotenoid, like other carotenoids, the application of lutein sedum Very limited. In practical applications, it is often necessary to make lutein into different dosage forms according to insoluble food characteristics or application requirements, such as: suspension, water-dispersible dry powder, etc., in order to improve the stability and bioavailability of lutein. To meet the different processing needs of food.