Bubble-column Photobioreactor에서의 Astaxanthin 유도배양의 연구

  • 최수림 (인하대학교 생물공학과, 생물산업기술 연구소) ;
  • 서인수 (인하대학교 생물공학과, 생물산업기술 연구소) ;
  • 이철균 (인하대학교 생물공학과, 생물산업기술 연구소)
  • Published : 2002.04.12


This study investigated a lab-scale inducing method for efficient astaxanthin accumulation. As a model system. Haematococcus pluvialis was cultivated in 2 liter bubble-column photobioreactors. The astaxanthin - inducing results using high light irradiation were compared with that of the control experiment under standard irradiation (40 ${\mu}E/m^2/s$). After the late linear growth phase (> 20 days). high light energy (230 ${\mu}E/m^2/s$) was supplied to the culture broth for astaxanthin induction. As a result. the dr γ cell weight and the astaxanthin productivity were increased up to 68% and 215%, respectively. higher than those of the control experiment. This result indicates that bubble-column type photobioreactor is a good candidate for mass cultivation of H. pluvialis and high light irradiation is an efficient induction method for astaxanthin accumulation in lab-scale bubble-column photobioreactors.