In contrast to other extraction methods, the ultrasound technique could be a better method for extraction the polysaccharides from Coix lachryma-jobi root with a high yield.

• 薏米及其根部均可入药，其特殊生理活性成分有薏苡仁脂、薏苡多糖、薏苡素及阿魏豆醇。