虎杖中白藜芦醇的吸附特性和稳定性研究
Research on the Adsorption Characteristics and Stability of Resveratrol from Polygonum cuspidatum
杜苏萌 1王媛 1任勇 1李建鹏 1王燕子1
作者信息
- 1. 太原工业学院环境与安全工程系,山西太原030008
- 折叠
摘要
[目的]研究用大孔树脂吸附分离虎杖中白藜芦醇的特性及其稳定性.[方法]分析大孔树脂对白藜芦醇的吸附曲线,分析流速、乙醇体积分数、提取时间、提取温度、pH等因素对大孔树脂吸附白藜芦醇的影响.[结果]AB-8树脂对虎杖中白藜芦醇的吸附更接近单分子层吸附.以1.5 mL/min流速通过层析柱时吸附率更高,用70％乙醇提取虎杖中白藜芦醇时提取率最高,3h是最佳提取时间;60℃是最佳提取温度;pH为4时白藜芦醇提取率最高.稳定性研究表明,白藜芦醇在酸性条件下保存浓度基本不变.[结论]用大孔树脂吸附分离白藜芦醇具有一定的优势.
Abstract
[Objective]The research aimed to study the adsorption characteristics and stability of resveratrol from Polygonum cuspidatum by macroporous resin adsorption.[Method] The adsorption curve of resveratrol was analyzed by macroporous resin.The effects of flow rate,ethanol volumn fraction,extraction time,extraction temperature and pH on the adsorption of resveratrol by macroporous resin were analyzed.[Result] The adsorption of AB-8 resin for resveratrol was more close to the monolayer adsorption.When the flow rate was 1.5 mL/min,the adsorption rate was higher;extraction rate of resveratrol from Polygonum cuspidatum with 70％ ethanol was the highest;3 h was the optimum extraction time;60 ℃ was the optimum extraction temperature;when the pH was 4,extraction rate of resveratrol was highest.Stability research showed that resveratrol concentration kept unchanged under acidic conditions.[Conclution] Adsorption and separation of resveratrol by macroporous resin has some advantages.
关键词
虎杖/白藜芦醇/吸附/稳定性/大孔树脂Key words
Polygonum cuspidatum/Resveratrol/Adsorption/Stability/Macroporous resin引用本文复制引用
基金项目
太原工业学院大学生创新项目(GK2016054)
出版年
2017
国家科技期刊平台
NSTL
维普
万方数据