《三种不同提取溶剂对黄芩苷提取效果的影响》-毕业论文（设计）.docVIP

PAGE 摘要 本文研究了不同提取溶剂对黄芩苷提取效果的影响。具体内容摘要如下：使用超声波法从干燥的黄芩根中提取黄芩苷，提取过程分别采用不同的提取溶剂，不同提取溶剂选择水、60%乙醇、60%甲醇为实验材料。分别提取出黄芩苷粗品后，对提取出来的黄芩苷粗品进行分离纯化，用紫外分光光度法对黄芩苷的浓度和质量进行测定，从而测出每种溶剂中黄芩苷的提取率，然后对三种不同溶剂的提取率进行分析和比较，分析不同提取溶剂对黄芩苷提取效果的影响，以确定提取黄芩苷可使用的最佳的提取溶剂。通过实验分析黄芩苷的最佳提取溶剂为乙醇，甲醇次之，最后为水。 关键词：黄芩苷；黄芩根；不同溶剂；超声波提取；紫外分光光度法 Abstract On the basis of a lot of literatures,we studied different extraction effect of the different extraction solvent. Specific summary as follows： extract baicalin from the root of Scutellaria baicalensis with ultrasonic wave extraction , baicalin extraction process using different extraction solvent, we choose methanol 、ethanoland、 water as the extraction solvent. When the baicalin are extracted, we separated and purified them from compound. Baicalin were analysed and determined by UV Spectrophotometry .We also worked out the extraction efficiency of baicalin and made a comparation among different extraction efficiency. Finally we confirmed that ethanol is the best extraction solvent，the second is methanol，the last one is water. Key Words：Baicalin;Ultraviolet spectrophotomeg; Ultrasonic wave extraction; The root of Scutellaria baicalensis;Different extraction solvent 目录 TOC \o 1-3 \h \z \u HYPERLINK \l _Toc295904539 第一章 绪论 1 HYPERLINK \l _Toc295904540 1.1 概述 PAGEREF _Toc295904540 \h 1 HYPERLINK \l _Toc295904541 1.2 黄芩中的化学成分 PAGEREF _Toc295904541 \h 2 HYPERLINK \l _Toc295904542 1.2.1黄酮和黄酮醇类 PAGEREF _Toc295904542 \h 2 HYPERLINK \l _Toc295904543 1.2.2挥发油类 PAGEREF _Toc295904543 \h 2 HYPERLINK \l _Toc295904544 1.3 黄芩的临床应用 PAGEREF _Toc295904544 \h 2 HYPERLINK \l _Toc295904545 1.4 黄芩苷的理化性质 PAGEREF _Toc295904545 \h 2 HYPERLINK \l _Toc295904546 1.5 黄芩苷的药理作用 PAGEREF _Toc295904546 \h 3 HYPERLINK \l _Toc295904547 1.5.1抗氧化 PAGEREF _Toc295904547 \h 3 HYPERLINK \l _Toc295904548 1.5.2 抗菌及抗病毒 PAGEREF _Toc295904548 \h 3 HYPERLINK \l _Toc295904549 1.5.3 抑制醛糖还原酶活性 PAGEREF _Toc295904549 \h 4 HYPERLINK \l _Toc295904550 1.5.4 其它 PAGEREF _Toc295904550 \h 4 HYPERLINK