| 학회 |
한국공업화학회 |
| 학술대회 |
2020년 가을 (10/28 ~ 10/30, 광주 김대중컨벤션센터(Kimdaejung Convention Center)) |
| 권호 |
24권 1호 |
| 발표분야 |
포스터-생물공학 |
| 제목 |
Medium optimization and CO2 fixation kinetics of Sulfurovum lithotrophicum 42BKTT |
| 초록 |
Sulfurovum lithotrophicum 42BKTT is a chemolithoautotroph which uses thiosulfate nitrate ion as an electron donor and acceptor respectively and CO2 as a carbon source. We adopt the CO2 assimilating character of this bacterium to CO2 fixation for reducing anthropogenic CO2. We studied kinetics of CO2 fixation of this bacterium under 0.2 atm and 1 atm respectively using Continuously Stirred Tank Reactor (CSTR). The Monod model successfully described the kinetics of CO2 fixation of Sulfurovum lithotrophicum 42BKTT. The maximum specific growth rate was 0.33 h-1 regardless of CO2 pressure while the Monod constant (Ks) was 0.0379 g Na2S2O3/L and 0.196 g Na2S2O3/L under 0.2 atm and 1.0 atm CO2, respectively. We concluded that when substrates were supplied sufficiently, S. lithotrophicum 42BKTT is not subject to CO2 toxicity. |
| 저자 |
박세원, 안익성
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| 소속 |
연세대 |
| 키워드 |
Chemolithoautotrophic sulfur oxidizing bacterium; tolerance of CO2 toxicity; Continuous stirred tank reactor(CSTR); growth kinetics; Monod model
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| E-Mail |
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