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Investigation of Microalgal Growth, Tetraselmis sp. KCTC12432BP by Supplying Bicarbonate on the Ocean Cultivation

해양배양기 내 중탄산염 공급에 따른 Tetraselmis sp. KCTC12432BP 증식에 관한 연구

Cho, Yonghee;Shin, Dong-Woo;Lee, Sangmin;Jeon, Hyonam;Ryu, Young-Jin;Lee, Jong-Chan;Lim, Sang-Min;Lee, Choul-Gyun
조용희;신동우;이상민;전효남;류영진;이종찬;임상민;이철균

  • Received : 2014.12.30
  • Accepted : 2015.01.14
  • Published : 2014.12.31

Abstract

The ocean provide great benefits for microalgal mass cultures with maintaining stable temperature due to high specific heat, mixing by wave energy, and providing large area for large-scale microalgae cultures. In this study, we cultivated a marine green microalga, Tetraselmis sp. KCTC12432BP, using marine photobioreactors on the ocean for investigating the effect of $NaHCO_3$ concentration on the biomass productivities and evaluating the potential of ocean microalgae culture. The culture medium consist of three fold concentrated f/2-Si with 4 g/L of $NaHCO_3$, which is dissolved in natural seawater. After 11 days of cultivation, the cultures reached stationary phase at biomass concentration of 1.6 g/L. At that time, $NaHCO_3$ concentration of 0, 2, and 4 g/L were fed to the cultures. The daily productivities of 0.11, 0.19, 0.30 g/L/day were attained with feeding rate of 0, 2, and 4 g/L $NaHCO_3$, respectively. Biomass productivity of Tetraselmis sp. KCTC12432BP was a function of the $NaHCO_3$ feeding rate as expected. This research shows that the microalgae can grow with $NaHCO_3$ as carbon source in marine photobioreactors on the ocean while exploiting various benefits of ocean cultivation.

Keywords

microalgae;ocean cultivation;biodiesel;sodium bicarbonate

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Cited by

  1. Theoretical Calculations on the Feasibility of Microalgal Biofuels: Utilization of Marine Resources Could Help Realizing the Potential of Microalgae vol.11, pp.11, 2016, https://doi.org/10.1002/biot.201600041
  2. Phycospheric Native Bacteria Pelagibaca bermudensis and Stappia sp. Ameliorate Biomass Productivity of Tetraselmis striata (KCTC1432BP) in Co-cultivation System through Mutualistic Interaction vol.8, pp.1664-462X, 2017, https://doi.org/10.3389/fpls.2017.00289

Acknowledgement

Grant : 해양미세조류 이용 바이오디젤 생산기술 개발

Supported by : 한국해양과학기술진흥원