HZ-202阴离子交换树脂吸附茶氨酸的研究  

Preliminary study on adsorption of L-theanine with anion exchange resin HZ-202

作　　者：张天明[1] 谢鑫陟[1] 杜守平 高学玲[1] 

机构地区：[1]安徽农业大学茶与食品科技学院,合肥230036 [2]黄山天健农业科技有限公司,黄山245700

出　　处：《安徽农业大学学报》2013年第2期254-257,共4页Journal of Anhui Agricultural University

基　　金：国家十二五科技支撑计划项目(2011BAD01B03)资助

摘　　要：研究了茶氨酸在一种阴离子交换树脂HZ-202上的动态吸附与解吸过程,确定了HZ-202阴离子交换树脂吸附解吸茶氨酸的较优操作参数。结果表明,HZ-202对茶氨酸有较好的吸附能力,动态吸附的较优参数为茶氨酸浓度1.0 mg.mL-1、上样流速0.75 mL.min-1、料液pH值6、料液温度25℃,吸附率超过98%;洗脱的较优参数为洗脱剂NaOH浓度为0.02 mol.L-1、洗脱速度0.75 mL.min-1下,解吸率为86.22%。The adsorption and desorption behaviors of L-theanine with HZ-202 anion exchange resin were investigated.The dynamic kinetics of HZ-202 anion exchange resin was studied,and the optimum parameters of adsorption were procured.It was shown that the pH value and concentration of L-theanine,the flow rate and temperature affected the kinetic curves of HZ-202 anion exchange resin to L-theanine.The optimum adsorption conditions were the flow rate 0.75 mL.min-1,sample concentration 1.0 mg.mL-1,pH 6,and temperature 25℃;And the optimum desorption conditions were the eluent flow rate 0.75 mL.min-1,eluent concentration 0.02 mol.L-1.In these conditions,the adsorption rate was 98%,while the desorption rate was 86.22%.

关 键 词：茶氨酸 HZ-202阴离子交换树脂 吸附 洗脱 

分 类 号：TS272[农业科学—茶叶生产加工] O647.3[轻工技术与工程—农产品加工及贮藏工程]