研究了超声降解后裂褶多糖溶液增比粘度变化的规律。发现超声作用时间越长，增比粘度越低，并趋向极限值；裂褶多糖初始浓度对超声降解效果的影响不大，不同初始浓度的裂褶多糖超声后再稀释到相同浓度时增比粘度几乎相同；功率越大，降解后的裂褶多糖增比粘度越低，而且降解后溶液的增比粘度成负相关的线性关系。

The viscosity changes of schizophyllan treated by ultrasound were examined here. It could found that the viscosity of the schizophyllan solution decreased till a limited value with prolonging the sonication time. The initial concentration of schizophyllan had little effect on the degradation of schizophyllan by ultrasonication while higher ultrasonic power reduced the viscosity of the schizophyllan solution.