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Article: Effects of Mo(VI) on phototrophic hydrogen production by Rhodobacter sphaeroides
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TitleEffects of Mo(VI) on phototrophic hydrogen production by Rhodobacter sphaeroides
 
AuthorsFang, HHP1
Li, RY1
Zhang, T1
 
Issue Date2011
 
PublisherTaylor & Francis. The Journal's web site is http://www.tandf.co.uk/journals/titles/09593330.asp
 
CitationEnvironmental Technology, 2011, v. 32 n. 11, p. 1279-1285 [How to Cite?]
DOI: http://dx.doi.org/10.1080/09593330.2010.535176
 
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.
 
ISSN0959-3330
2012 Impact Factor: 1.606
2012 SCImago Journal Rankings: 0.565
 
DOIhttp://dx.doi.org/10.1080/09593330.2010.535176
 
ISI Accession Number IDWOS:000296187500012
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.

 
ReferencesReferences in Scopus
 
GrantsPhoto-biohydrogen production from acidified wastewater
 
DC FieldValue
dc.contributor.authorFang, HHP
 
dc.contributor.authorLi, RY
 
dc.contributor.authorZhang, T
 
dc.date.accessioned2012-06-26T06:05:53Z
 
dc.date.available2012-06-26T06:05:53Z
 
dc.date.issued2011
 
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.
 
dc.description.natureLink_to_subscribed_fulltext
 
dc.identifier.citationEnvironmental Technology, 2011, v. 32 n. 11, p. 1279-1285 [How to Cite?]
DOI: http://dx.doi.org/10.1080/09593330.2010.535176
 
dc.identifier.doihttp://dx.doi.org/10.1080/09593330.2010.535176
 
dc.identifier.epage1285
 
dc.identifier.hkuros208093
 
dc.identifier.isiWOS:000296187500012
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.

 
dc.identifier.issn0959-3330
2012 Impact Factor: 1.606
2012 SCImago Journal Rankings: 0.565
 
dc.identifier.issue11
 
dc.identifier.pmid21970170
 
dc.identifier.scopuseid_2-s2.0-79960488870
 
dc.identifier.spage1279
 
dc.identifier.urihttp://hdl.handle.net/10722/150578
 
dc.identifier.volume32
 
dc.languageeng
 
dc.publisherTaylor & Francis. The Journal's web site is http://www.tandf.co.uk/journals/titles/09593330.asp
 
dc.publisher.placeUnited Kingdom
 
dc.relation.ispartofEnvironmental Technology
 
dc.relation.projectPhoto-biohydrogen production from acidified wastewater
 
dc.relation.referencesReferences in Scopus
 
dc.subject.meshBioelectric Energy Sources
 
dc.subject.meshBiomass
 
dc.subject.meshBioreactors - Microbiology
 
dc.subject.meshCarbon - Metabolism
 
dc.subject.meshFatty Acids - Metabolism
 
dc.subject.meshFermentation
 
dc.subject.meshHydrogen - Analysis - Metabolism
 
dc.subject.meshLactic Acid - Metabolism
 
dc.subject.meshMolybdenum - Metabolism - Pharmacology
 
dc.subject.meshPhototrophic Processes
 
dc.subject.meshRhodobacter Sphaeroides - Drug Effects - Growth & Development - Metabolism
 
dc.titleEffects of Mo(VI) on phototrophic hydrogen production by Rhodobacter sphaeroides
 
dc.typeArticle
 
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<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 &#956;g l -1 led to increases in hydrogen yield, maximum production rate, conversion efficiency, biomass yield and lactate removal. At 100&#924;g-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. &#169; 2011 Taylor &amp; Francis.</description.abstract>
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Author Affiliations
  1. The University of Hong Kong