Optimal Sparging Conditions for Algal Cultivation

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  • OHIRA Yuichi
    Department of Applied Chemistry, Muroran Institute of Technology
  • KUSUNOKI Fumiko
    Department of Applied Chemistry, Muroran Institute of Technology
  • KUGA Yoshikazu
    Department of Applied Chemistry, Muroran Institute of Technology
  • YOSHIDA Yutaka
    Department of Applied Chemistry, Muroran Institute of Technology
  • OBATA Eiji
    Department of Applied Chemistry, Muroran Institute of Technology
  • ANDO Koji
    Department of Applied Chemistry, Muroran Institute of Technology

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  • 藻類培養における最適通気量
  • ソウルイ バイヨウ ニ オケル サイテキ ツウキリョウ

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Abstract

We experimentally investigated the effects of airflow rate on the specific growth rates of a blue-green algae, Spirulina platensis, and a green algae, Chlorella pyrenoidosa. For cultivation of C. pyrenoidosa, the specific growth rate was constant when the airflow rate was greater than 5 mL·s-1. For cultivation of S. platensis, the specific growth rate had a maximum value when the airflow rate was 6 mL·s-1. We found that an optimal flow rate existed for cultivation of S. platensis and that excess aeration tended to decrease its specific growth rate.

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