Abstract
To evaluate the effect of substrate concentration on competition between hydrogen producing bacteria and lactic acid bacteria during hydrogen fermentation, a series of batch tests was conducted using galactose or glucose as a carbon source. Clostridium butyricum, Lactobacillus casei, and mixture of the two species were used for inoculum, respectively. The batch tests based on single species revealed that C. butyricum utilized galactose faster than L. casei, regardless of substrate concentration (0.2–5.7 g/L), while L. casei utilized glucose faster than C. butyricum at low levels of glucose (<1 g/L). These trends were also observed in the batch test based on a mixture of the two species. L. casei outcompeted C. butyricum only when glucose was provided at low concentration. Taken together, the results suggest that failure of biohydrogen production can occur at low glucose concentration via outcompeting of lactic acid bacteria over hydrogen producing bacteria.
| Original language | English |
|---|---|
| Pages (from-to) | 11460-11469 |
| Number of pages | 10 |
| Journal | International Journal of Hydrogen Energy |
| Volume | 43 |
| Issue number | 25 |
| DOIs | |
| Publication status | Published - 2018 Jun 21 |
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All Science Journal Classification (ASJC) codes
- Renewable Energy, Sustainability and the Environment
- Fuel Technology
- Condensed Matter Physics
- Energy Engineering and Power Technology
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Effect of substrate concentration on the competition between Clostridium and Lactobacillus during biohydrogen production. / Park, Jeong Hoon; Kim, Do Hyung; Kim, Sang-Hyoun; Yoon, Jeong Jun; Park, Hee Deung.
In: International Journal of Hydrogen Energy, Vol. 43, No. 25, 21.06.2018, p. 11460-11469.Research output: Contribution to journal › Article
TY - JOUR
T1 - Effect of substrate concentration on the competition between Clostridium and Lactobacillus during biohydrogen production
AU - Park, Jeong Hoon
AU - Kim, Do Hyung
AU - Kim, Sang-Hyoun
AU - Yoon, Jeong Jun
AU - Park, Hee Deung
PY - 2018/6/21
Y1 - 2018/6/21
N2 - To evaluate the effect of substrate concentration on competition between hydrogen producing bacteria and lactic acid bacteria during hydrogen fermentation, a series of batch tests was conducted using galactose or glucose as a carbon source. Clostridium butyricum, Lactobacillus casei, and mixture of the two species were used for inoculum, respectively. The batch tests based on single species revealed that C. butyricum utilized galactose faster than L. casei, regardless of substrate concentration (0.2–5.7 g/L), while L. casei utilized glucose faster than C. butyricum at low levels of glucose (<1 g/L). These trends were also observed in the batch test based on a mixture of the two species. L. casei outcompeted C. butyricum only when glucose was provided at low concentration. Taken together, the results suggest that failure of biohydrogen production can occur at low glucose concentration via outcompeting of lactic acid bacteria over hydrogen producing bacteria.
AB - To evaluate the effect of substrate concentration on competition between hydrogen producing bacteria and lactic acid bacteria during hydrogen fermentation, a series of batch tests was conducted using galactose or glucose as a carbon source. Clostridium butyricum, Lactobacillus casei, and mixture of the two species were used for inoculum, respectively. The batch tests based on single species revealed that C. butyricum utilized galactose faster than L. casei, regardless of substrate concentration (0.2–5.7 g/L), while L. casei utilized glucose faster than C. butyricum at low levels of glucose (<1 g/L). These trends were also observed in the batch test based on a mixture of the two species. L. casei outcompeted C. butyricum only when glucose was provided at low concentration. Taken together, the results suggest that failure of biohydrogen production can occur at low glucose concentration via outcompeting of lactic acid bacteria over hydrogen producing bacteria.
UR - http://www.scopus.com/inward/record.url?scp=85029428772&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85029428772&partnerID=8YFLogxK
U2 - 10.1016/j.ijhydene.2017.08.150
DO - 10.1016/j.ijhydene.2017.08.150
M3 - Article
AN - SCOPUS:85029428772
VL - 43
SP - 11460
EP - 11469
JO - International Journal of Hydrogen Energy
JF - International Journal of Hydrogen Energy
SN - 0360-3199
IS - 25
ER -