摘要
研究大孔树脂HZ818对葡萄籽原花青素的吸附性能。静态吸附特性研究表明:HZ818树脂对原花青素的吸附为吸热过程,溶液初始质量浓度为1.07mg/mL时,静态吸附容量为73.55mg/g,吸附等温线符合Langmiur方程,用体积分数为50%的乙醇解吸时效果最好。动态吸附特性研究表明:当溶液上样质量浓度为1.36mg/mL,流速为2BV/h时,动态吸附容量为109.13mg/g,当50%乙醇溶液流速为1BV/h,4BV洗脱液情况下洗脱率为93.81%。
This study was carried out to investigate adsorption properties of grape seed proanthocyanidins on HZ818 macroporous resin. Through static adsorption experiments, we found that the adsorption process was endothermic. The static adsorption capacity of HZ818 macroporous resin for proanthocyanidins was 73.55 mg/g at an initial concentration of 1.07 mg/mL. Adsorption isotherms were plotted each of which could be well fitted to Langmiur equation. Fifty percent ethanol revealed the best desorption effect. The dynamic adsorption capacity was 109.13 mg/g at a loading concentration of 1.36 mg/mL and a flow rate of 2 BV/h. The desorption rate of proanthocyanidins was 93.81% after desorption with a 4-fold BV excess of 50% ethanol at a flow rate of 1 BV/h.
出处
《食品科学》
EI
CAS
CSCD
北大核心
2012年第19期138-140,共3页
Food Science
基金
重庆市自然科学基金项目(CSTC2009BB7374)
关键词
原花青素
葡萄籽
大孔吸附树脂
吸附
proanthocyanidin
grape seed
macroporousresin
adsorption.
