天然产物研究与开发 ›› 2017, Vol. 29 ›› Issue (12): 1999-2003.doi: 10.16333/j.1001-6880.2017.12.001

• 研究论文 •    下一篇

大孔树脂对八月瓜果皮总三萜的吸附特性研究

李雪峰1,符智荣1,张晓旭2,欧阳玉祝2*   

  1. 1吉首大学师范学院;2吉首大学化学化工学院,吉首 416000
  • 出版日期:2018-01-04 发布日期:2018-01-09
  • 基金资助:

    湖南省湘西自治州科技计划(2013-7)

Adsorption Characteristic of Total Triterpenes in Akebia Trifoliata Pericarp by Macroporous Resin


LI Xue-feng1,FU Zhi-rong1,ZHANG Xiao-xu2,OUYANG Yu-zhu2*   

  1. 1Normal College of Jishou University; 2College of Chemisty and Chemical Engineering,Jishou University,Jishou 416000,China  
  • Online:2018-01-04 Published:2018-01-09

摘要: 研究XDA-1型大孔树脂对八月瓜果皮总三萜的吸附特性。采用准一级动力学方程、准二级动力学方程、Van’t Hoff方程和吸附等温方程研究吸附动力学与吸附热力学参数。结果表明,XDA-1大孔树脂对八月瓜果皮中总三萜的吸附符合准二级动力学方程描述;吸附等温线符合Freundlich等温吸附方程;吸附焓变ΔH=-1.2792 kJ/mol,为物理吸附;吉布斯自由能ΔG<0,吸附过程是自发过程;吸附熵变ΔS>0,表明吸附是熵值增加的过程。

关键词: 八月瓜, 总三萜, 大孔树脂, 动力学, 热力学

Abstract: The adsorption characteristic of total triterpenes in Akebia Trifoliata pericarp was researched by XDA-1 macroporous resin.Adsorption dynamics and thermodynamic parameters were investigated by pseudo-first-order,pseudo-second-order model,Van’t Hoff equation and adsorption isoatherms.The results showed that adsorption of total triterpenes by XDA-1 macroporous resin is pseudo-second-order kinetics equation.The adsorption isotherm is freundlich adsorption isotherm equation.Its enthalpy changes ΔH=-1.2792 kJ/mol,and is physical adsorption process.Gibbs free energy changes ΔG<0 indicated that the absorption is a spontaneous process.The entropy changes ΔS>0 demonstrated that the absorption process is the process of entropy increase.

Key words: Akebia Trifoliata, total triterpenes, macroporous resin, kinetics, thermodynamics

中图分类号: 

TS202.3 TQ28