Journal
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
Volume 36, Issue 17, Pages 10701-10708Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2011.05.189
Keywords
Hydrogen production; Coculture; Clostridium butyricum; Escherichia coli; Dark fermentation; Biohydrogen
Categories
Funding
- Academy of Finland [107425, 108623, 126974, 140018, 213462]
- Nordic Energy Research [28-02]
- Tampere University of Technology Graduate School
- Academy of Finland (AKA) [140018, 140018, 108623, 108623] Funding Source: Academy of Finland (AKA)
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The effect of coculture of Clostridium butyricum and Escherichia coli on hydrogen production was investigated. C. butyricum and E. coli were grown separately and together as batch cultures. Gas production, growth, volatile fatty acid production and glucose degradation were monitored. Whilst C. butyricum alone produced 2.09 mol-H-2/mol-glucose the coculture produced 1.65 mol-H-2/mol-glucose. However, the coculture utilized glucose more efficiently in the batch culture, i.e., it was able to produce more H-2 (5.85 mmol H-2) in the same cultivation setting than C. butyricum (4.62 mmol H-2), before the growth limiting pH was reached. Copyright (C) 2011, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
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