The aim of the optimum process was to seek out the ultrasonic extraction of soluble polysaccharose from dry Agrocybe aegirit.The effects of the factors such as extraction temperature,extraction time and ultrasonic input powers on the extraction rate of soluble polysaccharose were studied by the sing factor and the orthogonal experiments.The results showed that at the same grain-size and the material-water ratio,the effects on the extraction rate of soluble polysaccharose of the factors such as the extractio...