Study on Ultrasonic Extraction Technology of Polysaccharide from Sedum Aizoom L.

On the basis of single factor experiments,the ultrasonic extraction process of polysaccharide from Sedum Aizoom L. was studied by orthogonal experimental method. Ultrasonic temperature,solid-liquid ratio,ultrasonic time,extraction times were discussed on the polysaccharide extraction effect. The results show that the order of the various factors influence respectively: extraction times,solid-liquid ratio,ultrasonic extraction time,ultrasonic extraction temperature. The optimum ultrasonic extraction conditions of Polysaccharide from Sedum Aizoom L. : Ultrasonic extraction temperature is 50℃,solid-liquid ratiois 1: 50,ultrasonic extraction time is 40 min,extraction times is 3,under this extraction condition the highest crude polysaccharide extraction yield was 7. 39%.