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KMID : 0545120070170050853
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Journal of Microbiology and Biotechnology
2007 Volume.17 No. 5 p.853 ~ p.857
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Raceway Cultivation of Spirulina platensis Using Underground Water
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Kim Choong-Jae
Jung Yun-Ho
Ko So-Ra
Kim Hong-Ik
Park Yong-Ha
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Abstract
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The semi-outdoor cultivation of Spirulina platensis was attempted using an underground-water-based medium. Occurrence of contaminant organisms such as Chlorella sp. and Chlamydomonas sp. was not found from a microscopic observation and bacteria were not detected from denaturing gradient gel electrophoresis (DGGE) analysis of PCR-amplified 16S rDNA during the cultivation, owing to pH control and the high quality of the underground water. The mean productivity was high at 10.5 g/m2/d with a range of 4.2-12.3 g/m2/d despite the unfavorable weather conditions. The cultivated S. platensis included a normal protein content of 58.9%. Consequently, the underground water improved the biomass productivity and the biomass quality because of an abundant supplementation of natural minerals and through a contaminantfree culture.
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KEYWORD
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Semi-outdoor cultivation, Spirulina platensis, underground water
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