Purification of allophycocyanin from Porphyra haitanensis and prepraration of its polyclonal antibody

Bowen Li*, Zhenghong Zuo, Hongpo Dong, Yongbin Li, Yixin Chen

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

In this study, a series of methods including grinding in the presence of liquid N2, ultrasonic disruption, ammonium sulfate precipitation and gel filtration chromatography on DEAE-Sephadex-A-50 were applied to isolation of allophycocyanin, a crucial chlorophyll-protein in the photosynthesis of algae and an important marine bio-active substance, from Porphyra haitanensis. The purified allophycocyanin was injected into rabbits to prepare its polyclonal antibody, and specificity of polyclonal antibody was detected by Western blotting. The results indicated that the purified allophycocyanin producted two bands on SDS-PAGE, which denoted the a and β subunit of the allophycocyanin, and the purity and rate of recovery of allophycocyanin obtained were high, up to 3.5 (A650/A280) and 70.5% respectively. The result of indirect ELISA assay showed that the liter of the polyclonal antibody was nearly 1: 100000.

Original languageEnglish
Pages (from-to)638-642
Number of pages5
JournalGaojishu Tongxin/Chinese High Technology Letters
Volume16
Issue number6
StatePublished - Jun 2006
Externally publishedYes

Keywords

  • Allophycocyanin
  • Polyclonal-antibody
  • Porphyra haitanensis
  • Purification

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