Beta-carotene (C40H56) is one of the carotenoids and an orange-soluble fat-soluble compound. It is the most common and stable natural pigment in nature. Many natural foods such as green vegetables, sweet potatoes, carrots, spinach, papaya, mango, etc., are rich in beta-carotene. Beta-carotene is an antioxidant that has detoxification effect and is an indispensable nutrient for maintaining human health. It has significant functions in anti-cancer, prevention of cardiovascular diseases, cataracts and anti-oxidation, and thus prevents aging and aging. A variety of degenerative diseases.