食品科学

• 工艺技术 • 上一篇    下一篇

响应面法优化苏氨酸铬合成工艺

胡晓波,王光然,姜雯雯,龚 毅,谢明勇*   

  1. 南昌大学 食品科学与技术国家重点实验室,江西 南昌 330047
  • 出版日期:2015-01-25 发布日期:2015-01-16
  • 通讯作者: 谢明勇
  • 基金资助:

    江西省自然科学基金项目(20132BAB204002);江西省重大科技创新研究项目(20124ACF00400);
    江西省教育厅产学研合作项目(GJJ11002)

Optimization of Synthesis of Chromium Threoninate by Response Surface Methodology

HU Xiaobo, WANG Guangran, JIANG Wenwen, GONG Yi, XIE Mingyong*   

  1. State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
  • Online:2015-01-25 Published:2015-01-16
  • Contact: XIE Mingyong

摘要:

以苏氨酸和氯化铬为原料,在水溶液中反应合成了新型铬营养强化剂——苏氨酸铬。在单因素试验的基础上,利用Box-Behnken试验设计原理,选择四因素三水平,利用响应面法优化苏氨酸铬的合成工艺条件,确定其最佳工艺条件为苏氨酸与氯化铬物质的量比3.86∶1、反应体系pH 6.11、反应温度93.52 ℃、反应时间3.25 h,在此条件下苏氨酸铬产率为68.73%。实测值与回归模型预测值(68.82%)相对误差为0.13%,说明采用响应面法优化得到的合成条件可靠。

关键词: 苏氨酸铬, 合成, 响应面法

Abstract:

Chromium threoninate is a new type of chromium supplement. It was prepared by adding chromium chloride
to an aqueous solution of threonine. By combined use of single factor method and response surface methodology with a
Box-Behnken design involving four factors with three levels, the optimal synthesis conditions were determined as reaction
between threonine and chromium chloride with a molar ratio of 3.86:1 for 3.25 h at pH 6.11 and 93.52 ℃. Under these
conditions, the actual yield of chromium threoninate was 68.73%, similar to the expected value (68.82%) with a relative
error of 0.13%, suggesting the reliability of the optimized synthesis conditions.

Key words: chromium threoninate, synthesis, response surface methodology

中图分类号: