Comparison of the Effective Components Extraction from Compound Chinese Herbal Medicine by Two Diffe

来源 :Medicinal Plant | 被引量 : 0次 | 上传用户:feiniao6688
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
[Objective] To compare the effective components extraction from compound Chinese herbal medicine by microwave-assisted extraction and ethanol reflux extraction. [Method] Effective components were extracted from compound Chinese herbal medicine by ethanol reflux extraction and microwave-assisted extraction. At the same time, baicalin and puerarin contents were detected by UV-Vis spectrophotometry. With the extraction rates of baicalin and puerarin as the indices, extraction efficiency of the two extraction methods were compared. And the effects of extraction time on extraction rate by microwave-assisted extraction were studied. [Result] Ethanol with different concentrations was used for reflux extraction. Extraction rates of baicalin and puerarin firstly enhanced and then reduced as the ethanol concentration increased. When using microwave-assisted extraction, extraction rates of baicalin and puerarin were the highest by 60% ethanol. When the ethanol concentration was 60%, extraction rates of baicalin and puerarin by microwave-assisted extraction were significantly higher than those by ethanol reflux extraction. The optimal extraction time of microwave-assisted extraction was 15min. Under this condition, the extraction rates of baicalin and puerarin were the highest, which were 0.3155 and 0.5025mg/g, respectively. [Conclusion] Microwave-assisted ethanol reflux extraction could significantly enhance the extraction rates of baicalin and puerarin. [Objective] To compare the effective components extracted from compound Chinese herbal medicine by microwave-assisted extraction and ethanol-reflux extraction. [The Method] Effective components were extracted from compound Chinese herbal medicine by ethanol reflux extraction and microwave-assisted extraction. At the same time , with the extraction rates of baicalin and puerarin as the indices, extraction efficiency of the two extraction methods were compared. And the effects of extraction time on extraction rate by microwave-assisted extraction were Extraction rates of baicalin and puerarin were enhanced and then reduced as the ethanol concentration increased. When using microwave-assisted extraction, extraction rates of baicalin and puerarin were the highest by 60 % ethanol. When the ethanol concentration was 60%, extraction ra tes of baicalin and puerarin by microwave-assisted extraction were significantly higher than those by ethanol reflux extraction. The optimal extraction time of microwave-assisted extraction was 15 min. Under this condition, the extraction rates of baicalin and puerarin were the highest, which were 0.3155 and 0.5025 mg / g, respectively. [Conclusion] Microwave-assisted ethanol reflux extraction could significantly enhance the extraction rates of baicalin and puerarin.
其他文献
“书”是人们的朋友,我们用它来传承我们的智慧和文明。千百年来,聪明的人们创造了许多优秀的书籍形态,从甲骨文到简策、从线捆的卷轴到蝴蝶装、背包装、从古时候的线装到现
鸡西矿业集团公司张辰煤矿西三采区3
期刊