食品科学 ›› 2012, Vol. 33 ›› Issue (2): 48-52.doi: 10.7506/spkx1002-6630-201202011

• 工艺技术 • 上一篇    下一篇

响应面法优化鳕鱼皮胶原蛋白肽螯合铁工艺

蔡冰娜,陈 忻,潘剑宇,邓婉桦,万 鹏,陈得科,孙恢礼   

  1. 1.中国科学院海洋生物资源可持续利用重点实验室 2.中国科学院研究生院 3.佛山科学技术学院化学化工系
  • 出版日期:2012-01-25 发布日期:2012-01-16
  • 基金资助:
    中国科学院知识创新工程重要方向项目(KZCX2-EW-Q214);广东省中国科学院全面战略合作项目 (2010A090100029;2010B090300027);中国科学院南海海洋研究所2010 年青年人才领域前沿项目(SQ201017)

Optimization of Preparation Process for Cod Skin Collagen Peptide-Iron (Ⅱ) Chelate via Response Surface Methodology

CAI Bing-na,CHEN Xin,PAN Jian-yu,DENG Wan-hua,WAN Peng,CHEN De-ke,SUN Hui-li   

  1. 1. Key Laboratory of Marine Bio-resoures Sustainable Utilization, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China;2. Graduate University of Chinese Academy of Sciences, Beijing 100049, China; 3. Department of Chemistry and Chemical Engineering, Foshan University, Foshan 528000, China
  • Online:2012-01-25 Published:2012-01-16

摘要: 采用响应面法优化鳕鱼皮胶原蛋白肽与氯化亚铁进行螯合反应的条件,制备小分子肽螯合铁产品。以pH值、小分子肽与FeCl2的质量比和小分子肽液质量分数3因素的5水平进行二次正交旋转组合试验,建立螯合物得率的二次回归方程。结果表明:最佳螯合工艺条件为胶原蛋白肽与氯化亚铁的质量比4:1、小分子肽液质量分数3.5%、pH7.0。在此条件下,螯合物得率为37.31%,与模型的预测值37.46%接近。红外光谱检测结果显示,亚铁离子与小分子肽中的NH2+和COO-有螯合,是一种新型螯合物。

关键词: 响应面, 鳕鱼皮胶原蛋白肽, 螯合铁

Abstract:  The optimal chelating conditions for cod skin collagen peptide and ferrous chloride were investigated by response surface methodology (RSM) to explore the effects of pH (X1), collagen peptide-ferrous chloride ratio (X2) and collagen peptide concentration (X3) on chelating efficiency. The optimal chelating conditions were collagen peptide-ferrous chloride ratio of 4:1, collagen peptide concentration of 3.5% and pH 7.0. Under the optimal chelating conditions, the predicted and experimental yields of the peptide-iron (Ⅱ) chelate were 37.46% and 37.31%, respectively. The infrared spectral analysis revealed that the ferrous ions were chelated with NH2+ and COO- groups, suggesting the formation of a new kind of peptide-iron (Ⅱ) chelate.

Key words: cod skin collagen peptide, response surface methodology, peptide-iron (Ⅱ) chelate

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