Article: Effects of Mo(VI) on phototrophic hydrogen production by Rhodobacter sphaeroides
| Title | Effects of Mo(VI) on phototrophic hydrogen production by Rhodobacter sphaeroides |
|---|---|
| Authors | Fang, HHP1 Li, RY1 Zhang, T1 |
| Issue Date | 2011 |
| Publisher | Taylor & Francis. The Journal's web site is http://www.tandf.co.uk/journals/titles/09593330.asp |
| Citation | Environmental Technology, 2011, v. 32 n. 11, p. 1279-1285 [How to Cite?] DOI: http://dx.doi.org/10.1080/09593330.2010.535176 |
| Abstract | Effects of Mo 6+ concentration on phototrophic hydrogen production of Rhodobacter sphaeroides were investigated using lactate as the sole carbon source. Results showed that an increase of Mo 6+ from nil to 1000 μg l -1 led to increases in hydrogen yield, maximum production rate, conversion efficiency, biomass yield and lactate removal. At 100Μg-Mo l -1, the maximum rate was 12.0 ml h -1 l -1 with a conversion efficiency of 36.1%, the cell yields were 1.11 g-cell g -1-lactate and 2.4 g-cell g -1-TOC removed. Further increase of Mo 6+ improved hydrogen production only marginally. Degradation of lactate by R. sphaeroides produced not just hydrogen but also acetate, butyrate, i-valerate, i-caproate, hexanoate and some unidentified organic intermediates, but did not produce propionate and alcohols. Nitrogenase activity, as measured by the acetylene reduction method, had no clear correlation with either Mo 6+ concentration or hydrogen yield. © 2011 Taylor & Francis. |
| ISSN | 0959-3330 2011 Impact Factor: 1.406 2011 SCImago Journal Rankings: 0.065 |
| DOI | http://dx.doi.org/10.1080/09593330.2010.535176 |
| References | References in Scopus |
| Grants | Photo-biohydrogen production from acidified wastewater |
| dc.contributor.author | Fang, HHP | ||||||
|---|---|---|---|---|---|---|---|
| dc.contributor.author | Li, RY | ||||||
| dc.contributor.author | Zhang, T | ||||||
| dc.date.accessioned | 2012-06-26T06:05:53Z | ||||||
| dc.date.available | 2012-06-26T06:05:53Z | ||||||
| dc.date.issued | 2011 | ||||||
| dc.description.abstract | Effects of Mo 6+ concentration on phototrophic hydrogen production of Rhodobacter sphaeroides were investigated using lactate as the sole carbon source. Results showed that an increase of Mo 6+ from nil to 1000 μg l -1 led to increases in hydrogen yield, maximum production rate, conversion efficiency, biomass yield and lactate removal. At 100Μg-Mo l -1, the maximum rate was 12.0 ml h -1 l -1 with a conversion efficiency of 36.1%, the cell yields were 1.11 g-cell g -1-lactate and 2.4 g-cell g -1-TOC removed. Further increase of Mo 6+ improved hydrogen production only marginally. Degradation of lactate by R. sphaeroides produced not just hydrogen but also acetate, butyrate, i-valerate, i-caproate, hexanoate and some unidentified organic intermediates, but did not produce propionate and alcohols. Nitrogenase activity, as measured by the acetylene reduction method, had no clear correlation with either Mo 6+ concentration or hydrogen yield. © 2011 Taylor & Francis. | ||||||
| dc.description.grant | Photo-biohydrogen production from acidified wastewater | ||||||
| dc.description.grantcode | 9819 | ||||||
| dc.description.nature | Link_to_subscribed_fulltext | ||||||
| dc.identifier.citation | Environmental Technology, 2011, v. 32 n. 11, p. 1279-1285 [How to Cite?] DOI: http://dx.doi.org/10.1080/09593330.2010.535176 | ||||||
| dc.identifier.doi | http://dx.doi.org/10.1080/09593330.2010.535176 | ||||||
| dc.identifier.epage | 1285 | ||||||
| dc.identifier.hkuros | 208093 | ||||||
| dc.identifier.isi | WOS:000296187500012
Funding Information: The authors wish to thank the Hong Kong Research Grants Council for the financial support of this study (HKU 7106/04E), and Ru Ying Li wishes to thank HKU for the postgraduate studentship. | ||||||
| dc.identifier.issn | 0959-3330 2011 Impact Factor: 1.406 2011 SCImago Journal Rankings: 0.065 | ||||||
| dc.identifier.issue | 11 | ||||||
| dc.identifier.pmid | 21970170 | ||||||
| dc.identifier.scopus | eid_2-s2.0-79960488870 | ||||||
| dc.identifier.spage | 1279 | ||||||
| dc.identifier.uri | http://hdl.handle.net/10722/150578 | ||||||
| dc.identifier.volume | 32 | ||||||
| dc.language | eng | ||||||
| dc.publisher | Taylor & Francis. The Journal's web site is http://www.tandf.co.uk/journals/titles/09593330.asp | ||||||
| dc.publisher.place | United Kingdom | ||||||
| dc.relation.ispartof | Environmental Technology | ||||||
| dc.relation.references | References in Scopus | ||||||
| dc.subject.mesh | Bioelectric Energy Sources | ||||||
| dc.subject.mesh | Biomass | ||||||
| dc.subject.mesh | Bioreactors - Microbiology | ||||||
| dc.subject.mesh | Carbon - Metabolism | ||||||
| dc.subject.mesh | Fatty Acids - Metabolism | ||||||
| dc.subject.mesh | Fermentation | ||||||
| dc.subject.mesh | Hydrogen - Analysis - Metabolism | ||||||
| dc.subject.mesh | Lactic Acid - Metabolism | ||||||
| dc.subject.mesh | Molybdenum - Metabolism - Pharmacology | ||||||
| dc.subject.mesh | Phototrophic Processes | ||||||
| dc.subject.mesh | Rhodobacter Sphaeroides - Drug Effects - Growth & Development - Metabolism | ||||||
| dc.title | Effects of Mo(VI) on phototrophic hydrogen production by Rhodobacter sphaeroides | ||||||
| dc.type | Article |
Author Affiliations
- The University of Hong Kong