AB-8大孔树脂吸附黑枸杞中花青素行为研究

doi:10.3969/j.issn.0253-2417.2016.04.011

林产化学与工业 ›› 2016, Vol. 36 ›› Issue (4): 79-86.doi: 10.3969/j.issn.0253-2417.2016.04.011

AB-8大孔树脂吸附黑枸杞中花青素行为研究

王宏¹, 付燕秋¹, 韩静¹, 赵宇明¹, 刘栋²

1. 沈阳药科大学制药工程学院, 辽宁沈阳 110016;
2. 济南博纳生物科技公司, 山东济南 250101

收稿日期:2015-10-16 出版日期:2016-08-25 发布日期:2016-09-01
通讯作者: 韩静,教授,硕士生导师,从事生物化工、制药工程方面研究;E-mail:Hj-8080@163.com。 E-mail:Hj-8080@163.com
作者简介:王宏(1990-),男,安徽六安人,硕士生,主要从事生物化工方面研究工作
基金资助:
国家基础科学人才培养基金（J1103606）

Adsorption Behavior of AB-8 Resin for Anthocyanins from Lycium ruthenicum Murray

WANG Hong¹, FU Yan-qiu¹, HAN Jing¹, ZHAO Yu-ming¹, LIU Dong²

1. School of Pharmaceutical Englineering, Shenyang Pharmaceutical University, Shenyang 110016, China;
2. Jinan Boehner Biological Technology Co., Ltd., Jinan 250101, China

Received:2015-10-16 Online:2016-08-25 Published:2016-09-01

摘要/Abstract

摘要： 通过平衡吸附实验、等温吸附实验及柱吸附实验，研究了黑枸杞中花青素在AB-8大孔树脂中的吸附行为及吸附机理。结果表明：AB-8大孔树脂对花青素的吸附可用Elovich动力学模型描述，且吸附符合Freundlich及Langmuir等温吸附模型，Freundlich模型的线性拟合性更好；此外，花青素的等温吸附焓变为正值且绝对值小于40 kJ/mol，吉布斯自由能为负值，熵变为正，说明吸附过程为多层物理吸附，吸附可自发进行；由粒子内部扩散模型和Boyd模型可知吸附机理很复杂，主要受粒子扩散的影响；Adams-Bohart模型分析表明，在柱吸附分离纯化花青素过程中，应减小流动相的流量和床层高度，增加花青素质量浓度。

关键词: 花青素, 动力学, 热力学, 吸附机理, 分离纯化

Abstract: The adsorption performance of AB-8 resin for anthocyanin from Lycium ruthenicum Murray and adsorption mechanism were analyzed by equilibrium adsorption experiment, isothermal adsorption experiment and column adsorption experiment. The results showed that the adsorption kinetics process of AB-8 resin for anthocyanin could well fit with Elovich kinetic model. The linear straight of regression displayed that the Freundlich model was more suitable. Moreover, the enthalpy changes were positive and the absolute value was less than 40 kJ/mol. This indicated the adsorptions of AB-8 resin for anthocyanins were endothermic and physical changes. The Gibbs free energy changes were negative. It indicated that the adsorption process occurred spontaneously. The positive value of entropy changes indicated the increased randomness during the adsorption process. The adsorption mechanism was complicated and the adsorption process was mainly affected by particle diffusion. Adams-Bohart model analysis showed that in the process of column adsorption purification anthocyanins, the flow of mobile phase and the bed height should be reduced and the quality of anthocyanin concentrations should be increased.

Key words: anthocyanin, kinetics, thermodynamics, adsorption mechanism, separation purification

中图分类号:

TQ35

王宏, 付燕秋, 韩静, 赵宇明, 刘栋. AB-8大孔树脂吸附黑枸杞中花青素行为研究[J]. 林产化学与工业, 2016, 36(4): 79-86.

WANG Hong, FU Yan-qiu, HAN Jing, ZHAO Yu-ming, LIU Dong. Adsorption Behavior of AB-8 Resin for Anthocyanins from Lycium ruthenicum Murray[J]. Chemistry and Industry of Forest Products, 2016, 36(4): 79-86.

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AB-8大孔树脂吸附黑枸杞中花青素行为研究

Adsorption Behavior of AB-8 Resin for Anthocyanins from Lycium ruthenicum Murray

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