食品科学 ›› 2010, Vol. 31 ›› Issue (13): 56-59.doi: 10.7506/spkx1002-6630-201013014

• 基础研究 • 上一篇    下一篇

表面活性剂沉淀鱼精蛋白及复溶回收过程研究

刘 琳1,2,付朝霞3,刘俊果1,2,*,杜立业1,赵紫华1   

  1. 1.河北科技大学生物科学与工程学院
    2.河北省发酵工程技术研究中心
    3.河北科技大学科研处
  • 收稿日期:2009-11-16 修回日期:2010-04-07 出版日期:2010-07-01 发布日期:2010-12-29
  • 通讯作者: 刘俊果 E-mail:happyliu1997@yahoo.com.cn
  • 基金资助:

    河北省教育科学研究计划项目(2006315);河北科技大学学科建设项目(2006JC-13)

Surfactant Precipitation and Recovery of Protamine

LIU Lin1,2,FU Zhao-xia3,LIU Jun-guo1,2,*,DU Li-ye1,ZHAO Zi-hua1   

  1. 1. College of Bioscience and Bioengineering, Hebei University of Science and Technology, Shijiazhuang 050018, China;
    2. R&D Center for Fermentation Engineering of Hebei Province, Shijiazhuang 050018, China;
    3. Department of Scientific Research, Hebei University of Science and Technology, Shijiazhuang 050018, China
  • Received:2009-11-16 Revised:2010-04-07 Online:2010-07-01 Published:2010-12-29
  • Contact: LIU Jun-guo E-mail:happyliu1997@yahoo.com.cn

摘要:

采用两种阴离子型表面活性剂:十二烷基硫酸钠(SDS)和2- 乙基己基琥珀酸酯磺酸钠(AOT)沉淀鱼精蛋白并用极性有机溶剂从沉淀中复溶回收鱼精蛋白。结果表明:SDS 可以完全沉淀鱼精蛋白,而表面活性剂AOT 最高只能沉淀75.02% 的鱼精蛋白;极性有机溶剂的种类及辅助无机盐的添加量,对从鱼精蛋白- 表面活性剂难溶复合物中回收鱼精蛋白有很大的影响;对于SDS- 鱼精蛋白复合物,正丙醇为最佳回收剂,鱼精蛋白最高回收率可达83.33%;对于AOT- 鱼精蛋白复合物,丙酮为最佳回收剂,鱼精蛋白最高回收率达到85.71%。回收后的鱼精蛋白抗菌活性同原始鱼精蛋白相比没有明显变化。

关键词: 鱼精蛋白, 表面活性剂, 沉淀, 纯化

Abstract:

The precipitation and recovery of protamine was investigated using ionic surfactants as precipitating ligands and polar organic solvents as recovery agents. Ionic surfactant such as sodium dodecyl sulfate (SDS) exhibited a complete removal of protamine; however, sodium di-(2-ethylhexyl) sulfosuccinate (AOT) exhibited only 75.02% removal of protamine. In addition, an obvious effect of organic solvent and salt amount on the recovery of protamine from its precipitate. As for SDS-protamine precipitate, n-propanol was the optimal solvent with protamine recovery rate of more than 83.33%. As for AOT-protamine precipitate, acetone was the optimal solvent with protamine recovery rate of more than 85.71%. Compared with original protamine, no significant change in antibacterial activity of recovered protamine was observed.

Key words: protamine, surfactant, precipitation, purification

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