食品工业科技2017，Vol.38Issue(11)：111-115,121,6.DOI:10.13386/j.issn1002-0306.2017.11.013
离子交换树脂对山楂汁总酸与总黄酮的静态吸附动力学和热力学的影响
Effects of static adsorption kinetics and thermodynamics of total acid and flavonoids in hawthorn fruit juice on D315 ion-exchange resin
摘要
Abstract
In this paper,the adsorption kinetics and isotherms of total acid and flavonoids in hawthorn fruit juice on D315 weakly basic anion exchange resin were investigated through static adsorption method,and fitted by models.The results showed that the experiment data of total acid and flavonoids on D315 resin at 25 ℃ were best fitted by the Pseudo-second-order kinetics model(R2 ＞ 0.99),indicating this static adsorption was mainly chemical adsorption,and a good regression level of Elovich equation(R2 ＞ 0.95)further confirmed it.Thus,the fitting of W-M model showed that the whole adsorption process was dominated by multi-diflusion including film diffusion and intra-particle diffusion.The comprehensive analysis result of static adsorption isotherm showed the Langmuir isotherm model was more conducive to the fitting of static adsorption data of total acid and flavonoids in hawthorn fruit juice on D315 ion-exchange resin.关键词
D315离子交换树脂/山楂汁/吸附动力学/吸附等温线Key words
D315 ion-exchange resin/hawthorn fruit juice/adsorption kinetics/adsorption isotherm分类
轻工纺织引用本文复制引用
井丽丽,吴志莲,董艳琳,孙苗苗,田家浩,赵玉平..离子交换树脂对山楂汁总酸与总黄酮的静态吸附动力学和热力学的影响[J].食品工业科技,2017,38(11):111-115,121,6.基金项目
山东省自然基金(ZR2011CM026) （ZR2011CM026）
烟台大学研究生科技创新基金(YJSY201521). （YJSY201521）
