Effect of culture conditions on the competitive interaction between lactate oxidizers and fermenters in a biological sulfate reduction system

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dc.contributor.authorOyekola, Oluwaseun O
dc.contributor.authorHarrison, Susan T L
dc.contributor.authorVan Hille, Robert P
dc.date.accessioned2016-07-12T12:13:00Z
dc.date.available2016-07-12T12:13:00Z
dc.date.issued2012
dc.date.updated2016-07-12T12:02:13Z
dc.description.abstractKinetic constants (lmax and Ks) describing the predominance of lactate oxidation and fermentation were determined in chemostat cultures. The kinetics of sulfate reduction and lactate utilization were determined from 0.5 to 5 d residence times at feed sulfate concentrations of 1.0–10.0 g l1 . The kinetics of lactate fermentation in the absence of sulfate were investigated at residence times of 0.5–5 d. The lactate oxidizers (LO) were characterized by a lmax of 0.2 h1 and Ks value of 0.6 g l1 compared with a lmax of 0.3 h1 and Ks of 3.3 g l1 for the lactate fermenters (LF). Using mathematical models, it was shown that LO competed more effectively for lactate at low lactate concentrations (65gl1 ) and high sulfide concentrations (0.5 g l1 ). Lactate fermenters outcompeted the oxidizers under conditions of excess lactate (>5 g l1 ) and low sulfide (0.014–0.088 g l1 ). 2011 Een_ZA
dc.identifierhttp://dx.doi.org/10.1016/j.biortech.2011.11.052
dc.identifier.apacitationOyekola, O. O., Harrison, S. T. L., & Van Hille, R. P. (2012). Effect of culture conditions on the competitive interaction between lactate oxidizers and fermenters in a biological sulfate reduction system. <i>Bioresource Technology</i>, http://hdl.handle.net/11427/20317en_ZA
dc.identifier.chicagocitationOyekola, Oluwaseun O, Susan T L Harrison, and Robert P Van Hille "Effect of culture conditions on the competitive interaction between lactate oxidizers and fermenters in a biological sulfate reduction system." <i>Bioresource Technology</i> (2012) http://hdl.handle.net/11427/20317en_ZA
dc.identifier.citationOyekola, O. O., Harrison, S. T., & Van Hille, R. P. (2012). Effect of culture conditions on the competitive interaction between lactate oxidizers and fermenters in a biological sulfate reduction system. Bioresource technology, 104, 616-621.en_ZA
dc.identifier.issn0960-8524en_ZA
dc.identifier.ris TY - Journal Article AU - Oyekola, Oluwaseun O AU - Harrison, Susan T L AU - Van Hille, Robert P AB - Kinetic constants (lmax and Ks) describing the predominance of lactate oxidation and fermentation were determined in chemostat cultures. The kinetics of sulfate reduction and lactate utilization were determined from 0.5 to 5 d residence times at feed sulfate concentrations of 1.0–10.0 g l1 . The kinetics of lactate fermentation in the absence of sulfate were investigated at residence times of 0.5–5 d. The lactate oxidizers (LO) were characterized by a lmax of 0.2 h1 and Ks value of 0.6 g l1 compared with a lmax of 0.3 h1 and Ks of 3.3 g l1 for the lactate fermenters (LF). Using mathematical models, it was shown that LO competed more effectively for lactate at low lactate concentrations (65gl1 ) and high sulfide concentrations (0.5 g l1 ). Lactate fermenters outcompeted the oxidizers under conditions of excess lactate (>5 g l1 ) and low sulfide (0.014–0.088 g l1 ). 2011 E DA - 2012 DB - OpenUCT DP - University of Cape Town J1 - Bioresource Technology LK - https://open.uct.ac.za PB - University of Cape Town PY - 2012 SM - 0960-8524 T1 - Effect of culture conditions on the competitive interaction between lactate oxidizers and fermenters in a biological sulfate reduction system TI - Effect of culture conditions on the competitive interaction between lactate oxidizers and fermenters in a biological sulfate reduction system UR - http://hdl.handle.net/11427/20317 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/20317
dc.identifier.vancouvercitationOyekola OO, Harrison STL, Van Hille RP. Effect of culture conditions on the competitive interaction between lactate oxidizers and fermenters in a biological sulfate reduction system. Bioresource Technology. 2012; http://hdl.handle.net/11427/20317.en_ZA
dc.languageengen_ZA
dc.publisherElsevieren_ZA
dc.publisher.departmentCentre for Social Science Research(CSSR)en_ZA
dc.publisher.facultyFaculty of Humanitiesen_ZA
dc.publisher.institutionUniversity of Cape Town
dc.sourceBioresource Technologyen_ZA
dc.source.urihttp://www.sciencedirect.com/science/journal/09608524
dc.subject.otherAcid mine drainage
dc.subject.otherBiological sulfate reduction
dc.subject.otherFermentation
dc.subject.otherOxidation
dc.subject.otherKinetics
dc.subject.otherStoichiometry
dc.titleEffect of culture conditions on the competitive interaction between lactate oxidizers and fermenters in a biological sulfate reduction systemen_ZA
dc.typeJournal Articleen_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceArticleen_ZA
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