Abstract
The dissolution of CO2, a greenhouse gas most responsible for global warming, in seawater lowers its pH and increases its ionic strength. Sulfurovum lithotrophicum 42BKTT, a deep-sea chemolithotrophic bacterium, can fix high concentration CO2. In this study, we investigated the effect of pH and ionic strength variation of seawater on CO2 fixation by this bacterium. For a stable and continuous fixation of high concentration CO2 by S. lithotrophicum 42BKTT, the pH and ionic strength of the seawater-based medium should be 6.1–6.8 and <0.8 M, respectively. The deviation of pH and ionic strength from these ranges was indicated by the appearance of lengthened and fattened cells whose length and diameter increased by 70–90%. These results imply that the harmful effect of dissolved CO2 on marine ecosystem is due to the increase in ionic strength and decrease in pH of seawater.
Original language | English |
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Pages (from-to) | 72-76 |
Number of pages | 5 |
Journal | Journal of Industrial and Engineering Chemistry |
Volume | 57 |
DOIs | |
Publication status | Published - 2018 Jan 25 |
Bibliographical note
Funding Information:This work was supported by Yonsei University.
Publisher Copyright:
© 2017 The Korean Society of Industrial and Engineering Chemistry
All Science Journal Classification (ASJC) codes
- Chemical Engineering(all)