华南理工大学学报(自然科学版) ›› 2007, Vol. 35 ›› Issue (12): 111-115.

• 食品科学与技术 • 上一篇    下一篇

HPLC 及LC-ESI-MS 分离鉴定B-藻红蛋白的亚基

陈峰 胡金梅 郭祀远 魏东 张学武   

  1. 华南理工大学 轻工与食品学院,广东 广州 510640
  • 收稿日期:2007-04-13 出版日期:2007-12-25 发布日期:2007-12-25
  • 通信作者: 陈峰(1961-) ,男,教授,博士生导师,主要从事微藻生物技术、食品加工技术、中药技术等方面的研究. E-mail:sfchen@hkusua.hku.hk
  • 作者简介:陈峰(1961-) ,男,教授,博士生导师,主要从事微藻生物技术、食品加工技术、中药技术等方面的研究.
  • 基金资助:

    广东省自然科学基金资助项目(05006524)

Separation and Identification of B-Phycoerythrin Subunits by HPLC and LC-ESI-MS

Chen Feng  Hu lin-mei  Guo Si-yuan  Wei Dong  Zhang Xue-wu   

  1. School of Light Industry and Food Sciences , South China Univ. of Tech. , Guangzhou 510640 , Guangdong , China
  • Received:2007-04-13 Online:2007-12-25 Published:2007-12-25
  • Contact: Chen Feng (1961-) , male , Professor, Ph. D. supervisor , mainly researches on microalgal hiotechnology, food process technology , Chinese medicine technology. E-mail:sfchen@hkusua.hku.hk
  • About author:Chen Feng (1961-) , male , Professor, Ph. D. supervisor , mainly researches on microalgal hiotechnology, food process technology , Chinese medicine technology.
  • Supported by:

    Guangdong Provincial Natural Science Fundation (05006524)

摘要: 为了分析B- 藻红蛋白的三种亚基,采用反相HPLC 并通过二极管阵列/紫外可见光检测器和荧光检测器,以及LC- 电喷雾/MS 质谱检测器进行在线检测与鉴定.结果表明,根据在线检测的光谱特征,α ,β 和3 个明显的γ 亚基都能成功地被C4 柱分离,且α 和β 亚基均在555 nm 处有最大吸收峰,而γ 亚基在493nm 和555nm 处有最大吸收峰.并结合质谱信息,可鉴别出α 和β 亚基,它们的相对分子质量分别为18977 和20330. 说明结合上述几种检测技术可为B-藻红蛋白的亚基鉴定提供可靠的结果.

关键词: B-藻红蛋白, 亚基, 液质联用, 吸收光谱, 荧光光谱, 分离, 鉴定

Abstract:

In this paper , three kinds of suhunits of B-þhycoerythrin (B-PE) were tested and identified on line hy using inverse HPLC with photodiode array/UV -Vis and fluorescence detector , and hy using LC-electrospray ionization/MS. The results show that the α and β suhunits as well as three γ suhunits of B-PE are all successfully separated hy C4 column according to the on-line spectroscopic characteristics , and that hoth the α and the Bsuhunits have a maximum ahsorption at 555 nm , while the γ suhunit species show their maximum absorptions at 493 and 555 nm. Moreover , hy coupling with the MS ,α and β suhunits with respective relative molecular masses of 18977 and 20330 can he identified. It is thus concluded that a comhination of the techniques mentioned ahove helps to identify the suhunits of B-PE reliahly.

Key words: B-phycoerythrin, suhunit, HPLC/MS, ahsorption spectrum, fluorescent spectrum, separation, identification