正交试验法优化苔干中黄酮含量

Orthogonal Test Taigan of Flavonoids

采用传统的乙醇提取法,设计了4因素3水平正交试验,考察不同提取温度、料液比、提取时间等对提取苔干中黄酮含量的影响。确定最佳提取工艺为乙醇浓度70%,温度70℃,提取时间45 min,料液比1∶30,此条件下测得苔干中黄酮含量为2.80%。

In this paper,the conventional ethanol extraction,design of four factors and three level orthogonal test,the influence of different extraction temperature,solid to liquid ratio,extraction time on the extraction of flavonoid content and to determine the best extraction: 70% ethanol concentration,temperature 70℃,extraction time of 45 min,solid to liquid ratio of 1∶30,under these conditions,the flavonoid content measured Taigan 2.80%.