摘要
研究了苹果汁中棒曲霉素在八种大孔吸附树脂上的吸附行为,并筛选出最佳吸附树脂;研究了棒曲霉素在LSA-800B大孔吸附树脂上的静态动力学、吸附等温线和动态动力学曲线以及影响动态动力学曲线的因素,并确定了LSA-800B树脂吸附棒曲霉素的最适操作条件,结果表明:在实验条件LSA-800B树脂对棒曲霉素的静态吸附平衡时间为3h;20℃时LSA-800B树脂的吸附过程可用佛伦德列希(Freundlich)吸附等温式来描述,方程为:q=0.0539C1.0278(r2=0.9907);流速、果汁中棒曲霉素的浓度、操作温度对LSA-800B树脂的动态动力学曲线都有影响。树脂柱操作的最适条件为:流速4BV/h,温度50℃。
The adsorption behavior of apple juice patulin with eight kinds of macroreticular adsorption resins was investigated in the work. The optimum kinds of macroreticular adsorption resins were selected. The isotherm of LSA-800B macroreticular adsorption resin and its static and dynamic kinetics were both studied, and the optimum parameters of adsorption were procured. It was shown that the equilibrium time of LSA-800B macroreticular adsorption resin for patulin was 3h. The isotherm of LSA-800B macroreticular adsorption resin at 20℃ could be described by Freundiich isotherm. The flow rate, temperature and concentration of patulin in apple juice affected very much the kinetic curves of LSA-800B macroreticular adsorption resin to patulin. The optimum conditions were： 4BV/h and 50℃.
出处
《食品科学》
EI
CAS
CSCD
北大核心
2006年第6期91-95,共5页
Food Science
关键词
苹果汁
棒曲霉素
大孔吸附树脂
吸附动力学
apple juice
patulin
macroreticular adsorption resin
kinetics of adsorption
