论文部分内容阅读
目的:研究侧柏叶总黄酮最佳提取工艺。方法:以总黄酮及槲皮苷的提取率为考察指标,采用L9(34)正交试验,考察提取溶媒、提取次数、提取时间、料液比因素对提取的影响,确定侧柏叶最佳提取工艺。结果:用70%乙醇为溶媒,以1∶8的料液比,回流3次,每次1.5 h为最佳提取条件。结论:该提取工艺方法简单、合理,是侧柏叶黄酮类化合物的最佳提取工艺。
Objective: To study the best extraction technology of total flavonoids from oriental arborvitae. Methods: Taking the extraction rate of total flavonoids and quercitrin as indexes, the effects of extraction solvent, extraction times, extraction time and ratio of solid to liquid on the extraction were studied by L9 (34) orthogonal test to determine the best Extraction process. Results: With 70% ethanol as the solvent, the best extraction conditions were 1.5 h at reflux ratio of 1: 8. Conclusion: The extraction method is simple and reasonable, which is the best extraction technology of flavonoids from oriental arborvitae.