穿心莲内酯的提取论文2014.doc

穿心莲内酯的提取论文2014
穿心莲内酯探索性实验论文班别:2011级16班
组员:谭继欢201140143 范辉庆201140425 黄振提201140140
指导老师:欧冰凝
穿心莲内酯的提取
广西医科大学药学院 11-16 谭继欢201140143 范辉庆201140425 黄振提201140140
【摘要】学****中药中内酯类成分的提取分离及检识,通过实验要求:
1、掌握从穿心莲中提取、分离穿心莲内酯的操作方法。2、熟悉穿心莲内酯类成分的性质和检识方法。3、了解去除叶绿素的方法。方法:穿心莲中的内酯类化合物易溶于甲醇、乙醇、***等溶剂,故利用性质选用乙醇提取之;穿心莲中含有大量叶绿素,可用活性炭脱色除去叶绿素类杂质;利用穿心莲内酯与杂质在乙酸乙酯中溶解度不同,初步分离。结果:%。结论:实验产率太低,主要原因是加热多次破坏穿心莲内酯,活性炭用量把握不准使穿心莲内酯过多损失。
【关键词】:穿心莲内醋;提取;纯化;
Extraction of andrographolide [Abstract] to learn extraction ponents in Chinese traditional medicine and identify, through the experimental requirements: 1, to master the operation method to extract,
separate from the andrographolide in Andrographis paniculata. 2, familiar with the properties and detection of pounds of general method. 3, understand the removal of chlorophyll. Methods: lactones in Andrographis paniculata soluble in methanol, ethanol, acetone, the properties of the ethanol extract of Andrographis paniculata; contains large amounts of chlorophyll, available activated carbon decolorization remove chlorophyll impurities; use of andrographolide and impurities with different solubility in ethyl acetate, preliminary separation. Results: andrographolide extraction yield of coarse powder was %. Conclusion: the yield is very low, the main reason is heated repeated destruction of andrographolide, the dosage of activated carbo