Please use this identifier to cite or link to this item: https://scholarbank.nus.edu.sg/handle/10635/91412
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dc.titleCharacterization and application of an on-line flow injection analysis/wall-jet electrode system for glucose monitoring during fermentation
dc.contributor.authorHuang, Y.L.
dc.contributor.authorFoellmer, T.J.
dc.contributor.authorAng, K.C.
dc.contributor.authorKhoo, S.B.
dc.contributor.authorYap, M.G.S.
dc.date.accessioned2014-10-09T08:17:48Z
dc.date.available2014-10-09T08:17:48Z
dc.date.issued1995-12-20
dc.identifier.citationHuang, Y.L.,Foellmer, T.J.,Ang, K.C.,Khoo, S.B.,Yap, M.G.S. (1995-12-20). Characterization and application of an on-line flow injection analysis/wall-jet electrode system for glucose monitoring during fermentation. Analytica Chimica Acta 317 (1-3) : 223-232. ScholarBank@NUS Repository.
dc.identifier.issn00032670
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/91412
dc.description.abstractAn on-line system for glucose monitoring during fermentation was developed. The system employed flow-injection analysis coupled with a wall-jet electrode. Glucose was converted enzymatically in a tubular reactor packed with controlled pore glass beads containing immobilized glucose oxidase. The hydrogen peroxide produced was detected amperometrically. A filtration/sampling module operated by a peristaltic pump enabled sample withdrawal from the fermenter. The system was interfaced to a programmable language controller which was in turn linked to a microcomputer. The dual injection valve of the flow system was operated in a novel configuration to achieve sample dilution, by dispersion, and standardization simultaneously. The developed system was characterized for dilution factor, stability and linearity of response. After conditioning of the reactor, sample peak heights were found to have a precision of 1.07% (R.S.D., 25 determinations) when the glucose concentration was 1.32 g l-1. Under the conditions studied, linear response to glucose concentration from 0.062 to 4.0 g l-1 was obtained. Sample throughput was about 7 per hour. Interferences from the fermentation media were negligible after filtration through the sampling module and dilution. The on-line system was applied to glucose monitoring during E. coli fermentation. Good results were obtained as shown by the high cell density (OD600nm = 168 in 9 h fermentation), constant specific growth rate (μ = 0.66) and lower acetate accumulation (less than 2 g l-1 when OD600nm was over 50). © 1995.
dc.sourceScopus
dc.subjectFermentation
dc.subjectFlow injection
dc.subjectGlucose
dc.subjectWall-jet electrode system
dc.typeArticle
dc.contributor.departmentCHEMISTRY
dc.contributor.departmentBIOPROCESSING TECHNOLOGY CENTRE
dc.contributor.departmentCHEMICAL ENGINEERING
dc.description.sourcetitleAnalytica Chimica Acta
dc.description.volume317
dc.description.issue1-3
dc.description.page223-232
dc.description.codenACACA
dc.identifier.isiutNOT_IN_WOS
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