何首乌中二苯乙烯苷类物质的超声波提取工艺优化

摘要

StiIbene gIycoside were extracted from Polygonum multiflorum Thunb by uItrasonic assisted eth-anoI method,the effects of ethanoI concentration,materiaI-soIvent ratio,extracting temperature,extracting time and extracting power were researched. The resuIt showed that the optimaI conditions of extraction were determined as foIIows:ethanoI concentration was 60%,materiaI-soIvent ratio was 1:25 g/mL,extrac-ting temperature was 65℃,extracting time was 1. 5 h and extracting power was 800 W. Under these oper-ation conditions,the maximum rate of extraction of stiIbene gIycoside was 7. 19%.%采用超声波辅助乙醇提取何首乌中二苯乙烯苷类物质，考察了乙醇浓度、料液比、提取温度、提取时间和提取功率对提取率的影响。结果表明，提取最佳工艺条件为：乙醇浓度60％，料液比1：25 g/mL，提取温度65℃，提取时间1.5 h和提取功率800 W。在此条件下，二苯乙烯苷类物质的提取率达7.19％。