马齿苋多糖的微波提取及含量测定  

Microwave Technique Extraction and Content Determinations of Polysaccharide of Portulaca oleracea

作　　者：刘志勇[1] 王莉[1] 鲁建江[1] 顾承志 陈宏伟[1] 

机构地区：[1]石河子大学师范学院,新疆石河子市832002

出　　处：《中国药师》2002年第11期667-668,共2页China Pharmacist

摘　　要：目的:从马齿苋中提取多糖,并测定其含量。方法:运用微波技术用水提醇沉法提取马齿苋多糖,用酚-硫酸比色法测定多糖含量。结果:测得马齿苋中多糖含量 8.94％,平均回收率为97.6％,RSD=1.28％(n=6)。结论:首次运用微波技术从马齿苋中提取出多糖,反应速度加快,收率提高。Objective: To extract polysaccharides from Portulaca oleracea and determine its content. Method: The polysaccharides of portulaca oleracea were obtained through hot water extraction and ethanol precipitation by microwave technique, which content was determined by phenol-vitriolic colorimetry. Result: The polysaccharides content of Portulaca oleracea was 8.94% , a average recovery was 98.52% with RSD = 1.28% ( n = 6). Conclusion: The polysaccharides extrated from Portulaca oleracea has been obtained by microwave technique applied first.

关 键 词：微波技术 马齿苋 多糖 提取 含量 测定 药物 

分 类 号：R927.2[医药卫生—药学]