Research Progress on Construction of Lutein-Loaded Nano Delivery System and Their Improvements on the Bioactivity

Abstract

Lutein belongs to the diverse group of pigments known as oxygenated carotenoids, also known as phytochrome and macular pigment, demonstrating excellent biological activity. However, its application is limited due to the difficulty of dissolution, poor stability, and low bioavailability. To solve these problems, delivery systems are considered to be one of the most promising choices. These delivery systems can improve the physical, chemical, and biological properties of lutein to a certain extent. Moreover, the system can also be adapted to the needs of production in our daily life. In this paper, the construction of lutein-loaded nano delivery systems and their influences on the bioactivity of lutein were reviewed based on previous researchers. The main materials were classified, and assistant substances, basic parameters, and properties were collected. The mechanisms were analyzed in terms of enhancing cellular uptake, improving bioavailability, and achieving targeted delivery. These results show that different materials have their own characteristics. This review aims to provide references for the production and application of lutein in the food industry.