食品科学 ›› 2006, Vol. 27 ›› Issue (12): 482-486.

• 工艺技术 • 上一篇    下一篇

红毛藻藻红蛋白的分离纯化及性质研究

 付晓苹, 周琼, 翁凌, 苏文金, 曹敏杰   

  1. 集美大学生物工程学院;
  • 出版日期:2006-12-15 发布日期:2011-11-23

Purification and Characterization of Phycoerythrin from Bangia fusco-purpurea

 FU  Xiao-ping, ZHOU  Qiong, WENG  Ling, SU  Wen-Jin, CAO  Min-Jie   

  1. School of Bioengineering, Jimei University, Xiamen 361021, China
  • Online:2006-12-15 Published:2011-11-23

摘要: 从红毛藻(Bangiafusco-purpurea)中分离纯化得到纯度较高(A565/A280为5.0)的藻红蛋白(phycoerythrin,PE)。纯化过程包括:硫酸铵分级沉淀,阴离子交换柱层析,凝胶过滤柱层析。通过扫描藻红蛋白的紫外可见光谱,确定其为R-藻红蛋白。用SDS-PAGE及银染色法测定了组成R-藻红蛋白各亚基的相对分子量。并研究了pH值、温度、光照等理化因子对R-藻红蛋白稳定性的影响。

关键词: 红毛藻, 藻红蛋白, 分离纯化, 稳定性

Abstract: Phycoerythrin was isolated and purified from Bangia fusco-purpurea. After the successive procedures of ammonium sulfate fraction precipitation, ion-exchange column chromatography, and gel filtration chromatography, the purity (A565/A280) was 5.0. Absorption spectrum characteristic of the purified PE showed that it is R-PE. Relative molecular weight of subunits consisting of R-PE was detected by SDS-PAGE followed by silver staining. The stability of R-PE was investigated under a broad range of pH, different temperatures and light exposure.

Key words: Bangia fusco-purpurea, phycoerythrin, purification, stability