Study on ultrasonic extraction of polysaccharides in leaves of Pleioblastus amarus

Several factors,such as solvent,time and ultrasonic power were investigated and the appropriate ultrasonic extraction conditions were obtained from the orthogonal test.The results showed that solvent amounts took first place in three factors,ultrasonic power was the second,then was time.Extraction of polysaccharides from Pleioblastus amarus leaves had a significant effect on the time measuring,Abstracting ultrasonic power and menstruum.The best conditions were as follows:ultrasonic power 50W,liquid ratio 1:35 and 40min.Extraction content was 14.084mg·g-1.