Multistage operation of airlift photobioreactor for increased production of astaxanthin from Haematococcus pluvialis

Yoon E. Choi, Yeoung Sang Yun, Jong Moon Park, Ji Won Yang

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

An internally radiating photobioreactor was applied for the production of astaxanthin using the unicellular green alga Haematococcus pluvialis. The cellular morphology of H. pluvialis was significantly affected by the intensity of irradiance of the photobioreactor. Small green cells were widespread under lower light intensity, whereas big reddish cells were predominant under high light intensity. For these reasons, growth reflected by cell number or dry weight varied markedly with light conditions. Even under internal illumination of the photobioreactor, light penetration was significantly decreased as algal cells grew. Therefore, we employed a multistage process by gradually increasing the internal illuminations for astaxanthin production. Our results revealed that a multistage process might be essential to the successful operation of a photobioreactor for astaxnthin production using H. pluvialis.

Original languageEnglish
Pages (from-to)1081-1087
Number of pages7
JournalJournal of microbiology and biotechnology
Volume21
Issue number10
DOIs
Publication statusPublished - 2011 Oct

Keywords

  • Astaxanthin
  • Haematococcus pluvialis
  • Multistage process
  • Photobioreactor

ASJC Scopus subject areas

  • Biotechnology
  • Applied Microbiology and Biotechnology

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