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Effect of liquid circulation velocity and cell density on the growth ofParietochloris incisa in flat plate photobioreactors


For more accurately describing the durations of the light and the dark phases of microalgal cells over the whole light-dark cycle, and probing into the relationship between the liquid circulation time or velocity, the aeration rate and cell density, a series of experiments was carried out in 10 cm light-path flat plate photobioreactors. The results indicated that the liquid flow in the flat plate photobioreactor could be described by liquid dynamic equations, and a high biomass output, higher content and productivity of arachidonic acid, 70.10 gm−2d−1, 9.62% and 510.3 mg/L, respectively, were obtained under the optimal culture conditions.

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Correspondence to Wang Changhai.

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Changhai, W., Yingying, S., Ronglian, X. et al. Effect of liquid circulation velocity and cell density on the growth ofParietochloris incisa in flat plate photobioreactors. Biotechnol. Bioprocess Eng. 10, 103–108 (2005).

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  • liquid circulation velocity
  • microalgae
  • light-dark cycle
  • Parietochloris incisa
  • flat plate photobioreactor