Agaricus blazei Murill is a kind of fungus that was used for food and medicine. Recently, it has been used an an important nature source of immunomodulators, antimutigens and anticarcinogens. It becoming to be a promising way to develop antitumor polysaccharides, beause fungus submerged fermentation posess characteristics of low-cost and short-period. Because of the lack of wild resources and the diffculties of artificial cultivation, the submerged fermentation technology to produce medicinal fungi ...