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KMID : 0380020180330030209
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Korean Journal of Biotechnology and Bioengineering
2018 Volume.33 No. 3 p.209 ~ p.213
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Cultivation of Oscillatoria sp. under Mixotrophic Conditions with Ethyl Acetate as Organic Carbon
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Gao Si-Yun
Hong Kai
Lee Tae-Yoon
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Abstract
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The purpose of this study was to determine optimum value of aeration rate for the cultivation of Oscillatoria sp. and to find adequate acetate types and concentration as organic carbon source. The highest specific growth rate of 0.287 day-1 was obtained at the aeration of 0.55 vvm. Among four different acetate compounds, ammonium acetate and ethyl acetate were effective for Oscillatoria cultivation. For 30 mM ethyl acetate usage, the highest maximum specific growth rate (0.347 day-1), maximum biomass productivity (0.214 g L-1 d-1), and maximum concentration (2.05 g/L) were obtain. For the effective cultivation of Oscillatoria, aeration and dosage of more than 20 mM of ethyl acetate is recommended.
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KEYWORD
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oscillatoria, mixotrophic cultivation, ethyl acetate, aeration, biomass
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