正交试验优选杜仲叶绿原酸的提取工艺

Extraction Technology of Chlorogenic Acid from Eucommia ulmoides by Orthogonal Test

目的:优选杜仲叶绿原酸的提取工艺。方法:采用单因素试验考察酶解pH、酶解时间、酶解温度、酶用量、固液比、超声时间、超声提取温度对绿原酸提取率的影响。以绿原酸提取率为指标,以超声提取时间、固液比、酶解温度和酶用量为考察因素,采用正交试验优选杜仲叶绿原酸的提取工艺。结果:优选工艺为提取时间40 min,固液比1∶15(g/ml),酶解温度45℃,酶用量20mg,绿原酸提取率为2.37%。结论:优选的工艺合理、可行,具有提取率高、节能等优点,可为工业化生产提供参考。

OBJECTIVE： To optimize the extraction technology of chlorogenic acid in Eucommiae ulmoides. METHODS： The single factor test was used to investigate the effects of pH, time, temperature and amount of enzymolysis, ratio of solid to liquid, ultrasonic time