食品科学 ›› 2003, Vol. 24 ›› Issue (9): 66-69.

• 工艺技术 • 上一篇    下一篇

苹果汁中氨基态氮的分离—(Ⅱ)氨基态氮在LSI-1010阳离子交换树脂上解吸行为的研究

 易建华, 朱振宝, 仇农学, 寇晓康   

  1. 陕西科技大学生命科学与工程学院,陕西师范大学食品工程系,西安蓝深树脂有限公司
  • 出版日期:2003-09-15 发布日期:2011-12-13

Study on Elute Saving of Amino Nitrogen Elution in Apple Juice

 YI  Jian-Hua, ZHU  Zhen-Bao, CHOU  Nong-Xue, KOU  Xiao-Kang   

  • Online:2003-09-15 Published:2011-12-13

摘要: 研究了不同因素对氨基态氮洗脱曲线的影响,确定了氨基态氮从LSI-1010阳离子交换树脂上解吸的最佳工艺条件。结果表明:洗脱剂及其浓度、柱操作流速、温度对洗脱曲线及回收率有不同程度的影响;氨基态氮洗脱最佳条件为: 4%HCl,柱操作流速为2BV/h,温度为20℃;并且采用4周期为洗脱液更新一循环,可达到节约洗脱液的目的,且树脂的再生效率在80% 以上。一个循环洗脱液的节约量为18BV。

关键词: 苹果汁, 氨基态氮, 解吸行为, 洗脱

Abstract: The factors were studied which influenced elution curves of amino nitrogen on LSI-1010 cation exchange resin.Theoptimum conditions were determined. It was shown that the eluat especially its concentration, flow rate and temperature wouldinfluence elution curves of amino nitrogen on LS-1010 cation exchange resin; The optimum parameters were: 4% HCl,2BV/h and20℃.The aim of saving the eluate could be achieved when it the eluate was regenerated after 4 cycles of treatment. The efficiencyof eluate reclaim was above 80%.18BV of the eluate could be saved.

Key words: apple juice, amino nitrogen, desorption behavior, elution