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Article: Effects of Mo(VI) on phototrophic hydrogen production by Rhodobacter sphaeroides

TitleEffects of Mo(VI) on phototrophic hydrogen production by Rhodobacter sphaeroides
Authors
Issue Date2011
PublisherTaylor & 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?
AbstractEffects 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.
Persistent Identifierhttp://hdl.handle.net/10722/150578
ISSN
2014 Impact Factor: 1.560
2013 SCImago Journal Rankings: 0.494
ISI Accession Number ID
Funding AgencyGrant Number
Hong Kong Research Grants CouncilHKU 7106/04E
HKU
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.

References
Grants

 

DC FieldValueLanguage
dc.contributor.authorFang, HHPen_US
dc.contributor.authorLi, RYen_US
dc.contributor.authorZhang, Ten_US
dc.date.accessioned2012-06-26T06:05:53Z-
dc.date.available2012-06-26T06:05:53Z-
dc.date.issued2011en_US
dc.identifier.citationEnvironmental Technology, 2011, v. 32 n. 11, p. 1279-1285en_US
dc.identifier.issn0959-3330en_US
dc.identifier.urihttp://hdl.handle.net/10722/150578-
dc.description.abstractEffects 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.en_US
dc.languageengen_US
dc.publisherTaylor & Francis. The Journal's web site is http://www.tandf.co.uk/journals/titles/09593330.aspen_US
dc.relation.ispartofEnvironmental Technologyen_US
dc.subject.meshBioelectric Energy Sourcesen_US
dc.subject.meshBiomassen_US
dc.subject.meshBioreactors - Microbiologyen_US
dc.subject.meshCarbon - Metabolismen_US
dc.subject.meshFatty Acids - Metabolismen_US
dc.subject.meshFermentationen_US
dc.subject.meshHydrogen - Analysis - Metabolismen_US
dc.subject.meshLactic Acid - Metabolismen_US
dc.subject.meshMolybdenum - Metabolism - Pharmacologyen_US
dc.subject.meshPhototrophic Processesen_US
dc.subject.meshRhodobacter Sphaeroides - Drug Effects - Growth & Development - Metabolismen_US
dc.titleEffects of Mo(VI) on phototrophic hydrogen production by Rhodobacter sphaeroidesen_US
dc.typeArticleen_US
dc.identifier.emailFang, HHP:hrechef@hkucc.hku.hken_US
dc.identifier.emailZhang, T:zhangt@hkucc.hku.hken_US
dc.identifier.authorityFang, HHP=rp00115en_US
dc.identifier.authorityZhang, T=rp00211en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1080/09593330.2010.535176en_US
dc.identifier.pmid21970170en_US
dc.identifier.scopuseid_2-s2.0-79960488870en_US
dc.identifier.hkuros208093-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-79960488870&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume32en_US
dc.identifier.issue11en_US
dc.identifier.spage1279en_US
dc.identifier.epage1285en_US
dc.identifier.isiWOS:000296187500012-
dc.publisher.placeUnited Kingdomen_US
dc.relation.projectPhoto-biohydrogen production from acidified wastewater-
dc.identifier.scopusauthoridFang, HHP=7402542625en_US
dc.identifier.scopusauthoridLi, RY=54389491600en_US
dc.identifier.scopusauthoridZhang, T=24470677400en_US

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