The objective of the research was to compare the difference between conventional method and microwave-ultrasonic method in extracting Radix hedysari polysaccharide.With medicinal material R.hedysari as tested materials,the conventional method and microwave-ultrasonic method were used to extract R.hedysari polysaccharide to determine polysaccharide content by phenol-vitriolic colorimetry and compare the difference of 2 kinds of extraction methods.The contents of polysaccharides obtained from 2 kinds of extra...