Single stage hydrogen production from cellulose through photo-fermentation by a co-culture of Cellulomonas fimi and Rhodopseudomonas palustris
| Autor: | Zeynep Yilmazer Hitit, Patrick C. Hallenbeck, Carolina Zampol Lazaro |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
biology
Renewable Energy Sustainability and the Environment 05 social sciences Energy Engineering and Power Technology Substrate (chemistry) 010501 environmental sciences Condensed Matter Physics biology.organism_classification 7. Clean energy 01 natural sciences chemistry.chemical_compound Fuel Technology chemistry 0502 economics and business Yeast extract Fermentation Biohydrogen 050207 economics Cellulose Rhodopseudomonas palustris Bacteria 0105 earth and related environmental sciences Nuclear chemistry Hydrogen production |
| Zdroj: | International Journal of Hydrogen Energy. 42:6556-6566 |
| ISSN: | 0360-3199 |
| Popis: | Biohydrogen production from cellulose by a bacterial co-culture is a potentially promising approach for producing bioenergy from a low cost substrate. The use of a cellulolytic bacterium, Cellulomonas fimi , permits cellulose conversion and the in situ production of substrate for growth and hydrogen production by the photosynthetic bacterium Rhodopseudomonas palustris . Response surface methodology (RSM) with a Box-Behnken design (BBD) was used to examine variations in the key parameters: substrate (cellulose) concentration, yeast extract concentration and the microorganism ratio ( Rps. palustris/C. fimi ). For the co-culture of R. palustris and C. fimi the highest hydrogen production (44 mmol H 2 /L) was achieved at the highest substrate concentration (5 g/L); however, the highest hydrogen yield (3.84 mol H 2 /mol glucose equivalent) was observed at the lowest cellulose concentration and highest microorganism ratio. High COD removal efficiencies, over 70%, were achieved over a wide range of conditions and were positively affected by the concentration of yeast extract. |
| Databáze: | OpenAIRE |
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