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KMID : 0380020030180040277
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Korean Journal of Biotechnology and Bioengineering
2003 Volume.18 No. 4 p.277 ~ p.281
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The Growth Characteristics of Spirulina platensis in Cylindrical Photobioreactor
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Kim Yong-Sang
Park Ho-Il
Kim Dong-Gun
Park Dae-Won
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Abstract
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The study of growth characteristics for Spirulina platensis were carried out in 400 mL cylindrical photobioreactor and the effects of carbon dioxide concentration and flow rate during the growth of Spirulina platensis were investigated. The results showed that relatively low carbon dioxide concentration and high flow rate forced the growth of Spirulina platensis in experiment conditions. The pH analysis showed that different carbon dioxide concentration might form particular aqueous carbonate system in culture medium and affect the growth of Spirulina platensis. In addition, the possibility of limiting light radiation by cell density was investigated by the analysis of specific growth rate. The result intimated that the cause of decrease of specific growth rate at exponential phase was due to the limitation of light radiation by Spirulina platensis cell density in cylindrical photobioreactor.
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KEYWORD
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Spirulina platensis, carbon dioxide fixation, photobioreactor
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