Cordyceps Militaris polysaccharides are important biologically active substances. The researchers found that Cordyceps polysaccharide has many physiological functions, such as antioxidant, anti-tumor, enhancing immunity, reducing blood pressure and protecting liver and so on. In this study, Cordyceps militaris culture medium as material, different extraction methods were used to extract Cordyceps polysaccharide, and discusses the affect of polysaccharide matrix of yield, viscosity and in vitro antioxidant a...