广东工业大学学报 ›› 2016, Vol. 33 ›› Issue (04): 69-73.doi: 10.3969/j.issn.1007-7162.2016.04.012

• 综合研究 • 上一篇    下一篇

响应面法优化蛋氨酸锰的合成

舒绪刚1， 吴春丽1， 万轲2， 李翠金1， 邱桂雄3， 高均勇3   

  1. 1.仲恺农业工程学院 化学化工学院，广东 广州 510225; 2.广东工业大学 轻工化工学院, 广东 广州 510225; 3.广州天科生物科技有限公司, 广东 广州 510689
  • 收稿日期:2015-05-07 出版日期:2016-08-02 发布日期:2016-08-02
  • 作者简介:舒绪刚（1976-），男，副教授，博士,主要研究方向为食品和饲料添加剂.E-mail：xgshu@21cn.com
  • 基金资助:

    广东省科技计划项目（2013B090900007、2013B070704081）；广州市创新型企业专项（2013J1400006）

Optimization of Methionine Manganese Production by Response Surface Method

Shu Xu-gang1, Wu Chun-li1, Wan Ke2, Li Cui-jin1, Qiu Gui-xiong3, Gao Jun-yong3   

  1. 1. College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineer, Guangzhou 510225, China; 2. School of Light Industry and Chemical Engineering,Guangdong University of Technology,  Guangzhou 510006, China; 3.Guangzhou Tanke Biological Technology co., LTD, Guangzhou 510627, China
  • Received:2015-05-07 Online:2016-08-02 Published:2016-08-02

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摘要：

以蛋氨酸和一水硫酸锰为原料合成蛋氨酸锰，在单因素试验的基础上，选择氢氧化钠用量、反应温度和反应原料摩尔配比为影响实验结果因素，通过响应曲面中心复合法优化蛋氨酸锰的制备工艺条件，并建立二次回归方程.优化的最佳条件：n(蛋氨酸)∶n(MnSO4·H2O)=2.006∶1，n(MnSO4·H2O)∶n(NaOH)=1∶2，反应温度为80℃，产率可达85.37%.采用红外光谱、热重及XRD粉末衍射验证产物发生络合反应且不含结晶水，采用EDTA法和凯氏定氮法进行含量分析，得蛋氨酸锰的分子结构式为Mn(C5H11O2NS)2.

关键词: 蛋氨酸锰；合成；响应曲面法；表征

Abstract:

On the basis of a single-factor experiment, the affecting factors of the amount of NaOH, reaction temperature and molar ratio of raw material for the reaction are chosen. Synthesized for complex of methionine manganese by the raw materials of methionine and manganese sulfate monohydrate, through the response surface center methodology to optimize the reaction conditions: n (methionine)∶n (MnSO4 ·H2O) = 2.006∶1 and n (MnSO4· H2O)∶n (NaOH) = 1∶2, reaction temperature at 80 ℃, the yield can reach 85.37%, and a quadratic regression equation is established. The composition of the complex is characterized by content analysis, infrared spectra, thermogravimetric and XRD powder diffraction analysis. It is observed that the complex does not contain water of crystallization, and that content analysis of the complex by EDTA complexometric titration and kjeldahl determination obtains the formula of manganese methionine as Mn (C5H11O2NS)2.

Key words: methionine manganese; synthesis; response surface methodology; characterization

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