虎杖中白藜芦醇的提取与纯化  

Extraction and purification of resveratrol from Polygonum cuspidatum

作　　者：王莹[1,2] 李梦耀[1,2] 马岚[1,2] 王莉莉[1] 

机构地区：[1]长安大学环境科学与工程学院,陕西西安710054 [2]长安大学旱区地下水文与生态效应教育部重点实验室,陕西西安710054

出　　处：《应用化工》2014年第1期128-131,共4页Applied Chemical Industry

摘　　要：用乙醇提取虎杖中的白藜芦醇,并用LS-303大孔吸附树脂进行纯化。研究表明,乙醇的体积分数为70%,提取温度为70℃,固液比为2∶100(g/mL),恒温2 h,白藜芦醇一次提取率为88.5%;LS-303树脂对白藜芦醇的静态吸附速率为13.9μg/(g·min)。吸附热力学曲线可用Freundlich方程和Langmuir方程描述,吸附的白藜芦醇可用60%乙醇解吸,虎杖白藜芦醇提取液纯化后,杂质含量显著降低。Using ethanol to extracted the resveratrol from Polygonum cuspidatum,and use LS-303 macroporous resin for purification. The results showed that the extraction rate of resveratrol can reach 88. 5% when the volume fraction of alcohol is 70%. The extraction temperature is 70 ℃,solid and liquid ratio is 2∶ 100（g/mL）,isothermal 2 h,the static adsorption rate of LS-303 macroporous resin is 13. 9 μg/（g·min）, the thermodynamics of adsorption curve can describe by the Freundlich and Langmuir equations. Resveratrol can be desorbed by the 60% alcohol that adsorption on the resin. Extraction significantly decreased the content of impurities of resveratrol extracts from Polygonum cuspidatum that purifying.

关 键 词：虎杖 白藜芦醇 提取 纯化 大孔吸附树脂 

分 类 号：TQ028[化学工程]