大孔吸附树脂对葡萄籽原花青素的吸附特性  

Adsorption Properties of Proanthocyanidins from Grape Seeds on Macro Porous Adsorption Resins

作　　者：杨迎花[1] 李晓丽[1] 

机构地区：[1]天津科技大学理学院,天津300222

出　　处：《精细化工》2007年第9期899-902,共4页Fine Chemicals

基　　金：天津科技大学科学研究基金(20060226)~~

摘　　要：从9种大孔吸附树脂中筛选出AB-8树脂对原花青素有较好的吸附和解吸性能。研究了原花青素在AB-8树脂上的吸附特性。静态吸附表明,吸附略有放热,平衡吸附时间为2 h,吸附行为更符合Langmuir等温式,用体积分数为50%的乙醇时解吸效果最好。当流速为1.5 BV/h时,动态泄漏吸附量比静态吸附量低15%,5BV可达到完全洗脱的目的,其原花青素的质量分数可达85.8%。Adsorption behavior of proanthocyanidin of grape seed on AB - 8 macroporous adsorption resin was studied. The results of static adsorption showed that the adsorption process is slightly exothermic. The adsorption equilibrium time was 2 h. The adsorption isotherm could be well correlated with Langmuir isotherm equation. 50% ethanol solution gave the best desorption property. The dynamic adsorption capacity was 15 % lower than the static adsorption capacity when the flow rate was 1.5 BV/ h. The adsorbed proanthocyanidin was eluted thoroughly by 5 BV of 50% ethanol solution. The mass fraction of proanthocyanidin can be up to 85.8%.

关 键 词：葡萄籽 原花青素 大孔吸附树脂 吸附 医药原料 

分 类 号：O647.3[理学—物理化学]