【摘要】 采用超声技术用水提醇沉法提取白芥子多糖 ,用比色法测定了多糖含量。结果显示 ,用超声法提取测得白芥子多糖含量为 3 .998%,平均回收率为 99.86%,相对标准偏差 (RSD)为 1.68(n=5 )。更多还原

【Abstract】 Using Ultrasonic methods,polysaccharides in Seeds of Brassica Alba were obtained by hot water extraction and ethanol precipitation,and content was determined with phenol-vitriolic colorimetry Polysaccharides in Seeds of Brassica Alba is 3.998%, and recovery rate is 99.86%,RSD was 1.68%(n=5).更多还原