食品科学

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pH值过程控制优化低聚异麦芽糖铁配合物的制备工艺

毛 凯,李 丹,吴姣娇,潘红春*,刘 红*   

  1. 西南大学药学院,重庆药物过程与质量控制工程技术研究中心,重庆 400716
  • 出版日期:2015-08-25 发布日期:2015-08-17
  • 通讯作者: 潘红春,刘 红
  • 基金资助:

    重庆市制药过程与质量控制工程技术研究中心能力提升项目(CSTC2012gg-yyjsb10002-33);
    重庆市研究生教育教学改革研究项目(yjg143085);西南大学博士基金项目(SWU110056;SWU110057)

Optimization of Preparation of Isomaltooligosaccharide-Iron Complex by pH Control

MAO Kai, LI Dan, WU Jiaojiao, PAN Hongchun*, LIU Hong*   

  1. Chongqing Engineering Research Center for Pharmaceutical Process and Quality Control, College of Pharmaceutical Sciences,
    Southwest University, Chongqing 400716, China
  • Online:2015-08-25 Published:2015-08-17
  • Contact: PAN Hongchun, LIU Hong

摘要:

以低聚异麦芽糖和三氯化铁为原料,以铁含量、产率和反应时间为指标,采用pH值过程控制来制备低聚异麦芽糖铁配合物,筛选出最佳的工艺条件;以粒径、Zeta电位、多分散指数、电导率来展现最佳工艺条件下反应过程的变化情况,并用红外光谱和差示扫描量热分析对最佳工艺条件下制备的产物进行表征。结果表明:当反应起始pH 12.1、反应过程pH值控制为11.5时,制得的低聚异麦芽糖铁配合物的铁含量可达43.16%,产率为96.35%,反应时间缩短为1 h,相比于未控制反应过程pH值的工艺(铁含量为37.14%,反应时间为2.7 h),铁含量提高了16.21%,反应时间缩短了62.96%,低聚异麦芽糖与Fe3+发生了配位反应,表明该工艺具有较高的应用价值。

关键词: 低聚异麦芽糖铁, 制备, pH值, 过程控制, 优化

Abstract:

The preparation of isomaltooligosaccharide-iron complex from isomaltooligosaccharide and FeCl3 by pH control
was optimized based on iron content, yield and reaction time. The formation and evolution of isomaltooligosaccharideiron
complex were elucidated by particle size, zeta potential, polydispersity and conductivity of reaction products under the
optimal conditions. FTIR spectroscopy and differential thermal analysis were used to confirm the products. Results showed
that when pH control for the reaction process was 11.5 with an initial pH of 12.1, the obtained product contained 43.16%
iron with a yield of 96.35% and the reaction time was shortened to 1 h. Compared to the condition without pH control (iron
content of 37.14%, reaction time of 2.7 h), the iron content was increased by 16.21% and the reaction time was shortened
by 62.96%. The chelating reaction occurred between Isomaltooligosaccharide and Fe3+. The optimal process has high
application potential.

Key words: isomaltooligosaccharide-iron complex, preparation, pH, process control, optimization

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