半枝莲中总黄酮和多糖的微波提取与含量测定
半枝莲,,微波技术；半枝莲；总黄酮；多糖；提取；含量测定,1仪器、样品及试剂,2方法与结果,3讨论,参考文献：
摘要：目的：从半枝莲中提取总黄酮和多糖，并测定其含量。方法：运用微波技术提取半枝莲总黄酮和多糖，用比色法测定总黄酮和多糖含量。结果：测得半枝莲中总黄酮含量为3.74%，平均回收率为98.91%，相对标准偏差(RSD)为2.01%(n=5)；多糖含量为5.79%，平均回收率为101.3%，相对标准偏差(RSD)为3.0%(n=5)。结论：运用微波技术从半枝莲中联合提取总黄酮和多糖，反应速度加快，提高了提取效率。关键词：微波技术；半枝莲；总黄酮；多糖；提取；含量测定
Microwave Extraction and Determination of Total Flavonoids and Polysaccharides in Scutellaria barbata D.Don
XUE Mei, WANG Zijun, ZHOU Jing
(Chemistry and Chemical Engineering College, Shihezi University, Shihezi, Xinjiang 832002, China)
Abstract:Objective:To extract and determine total flavonoids and polysaccharides in Scutellaria barbata D.Don.Methods:Total flavonoids and polysaccharides in Scutellaria barbata D.Don were extracted by microwave technology and determined by colorimetry.Results:Total flavonoids in Scutellaria barbata D.Don was 3.74%,and recovery rate was 98.91%,RSD was 2.01%(n=5)；Polysaccharides in Scutellaria barbata D.Don was 5.79%,and recovery rate was 101.3%,RSD was 3.0%(n=5).Conclusion:Microwave technology was applied to extracting total flavonoids and polysaccharides in Scutellaria barbata D.Don for the first time. The reaction speed is faster and the result is satisfactory. ......
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