Helianthus annuus polysaccharide and preparation method thereof

The invention relates to extraction of active ingredients and biological activity of the active ingredients from waste sunflower discs generated in sunflower recovery process, and particularly belongs to the fields of preparation of health foods and pharmaceuticals and refuse reclamation. The invention provides a method for extracting polysaccharide from sunflower discs, which mainly comprises the following steps of choosing materials, crushing, soaking, enzymolysis, filtering, concentrating and drying in vacuum. The invention also relates to applications of sunflower polysaccharide in the preparation of health foods and pharmaceuticals, especially the applications in the preparation of health foods and pharmaceuticals with immune enhancing function. The main use of the method provided by the invention is to extract, process and reutilize the active ingredients in waste sunflower discs, so as to achieve the purpose of waste utilization and turning waste into wealth.