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dc.contributor.authorRiedlberger, Peter-
dc.contributor.authorBrüning, Stefanie-
dc.contributor.authorWeuster-Botz, Dirk-
dc.date.accessioned2018-08-17T09:48:33Z-
dc.date.available2018-08-17T09:48:33Z-
dc.date.issued2013-
dc.identifier.issn1615-7591de_CH
dc.identifier.issn1615-7605de_CH
dc.identifier.urihttps://digitalcollection.zhaw.ch/handle/11475/9148-
dc.description.abstractThe evaluation of mixing quality is an important factor for improving the geometry of stirred-tank reactors and impellers used in bioprocess engineering applications, such as the enzymatic hydrolysis of plant materials. Homogeneity depends on different factors, including the stirrer type and the reactor type (e.g., ratio of diameter/height, ratio of impeller tip diameter/reactor diameter) with or without baffles. This study compares two impellers for enzymatic hydrolysis of suspensions of biomass particles on a milliliter scale. Both impellers were derived from industrially relevant geometries, such as blade and grid stirrers, although the geometry of the second stirrer was slightly modified to an asymmetric shape. The stirrers were investigated with different stirrer-reactor configurations. This was done experimentally and with the aid of computational fluid dynamics. The flow field, mixing numbers, power characteristics and initial conversion rates of sugars were considered to compare the two stirrers. The simulated mixing numbers and power characteristics in baffled and unbaffled milliliter-scale reactors were found to be in good agreement with the measured mixing times and power consumption. The mixing numbers required to reach homogeneity were much higher for the symmetric impeller and remained at least twice as high as the mixing numbers required when using the asymmetric impeller. The highest initial sugar releases from milled corn stover suspensions were achieved with the asymmetric impeller shape. Regardless of the differences in the flow fields or mixing times, diverging enzymatic sugar releases could be confirmed for Newtonian media only.de_CH
dc.language.isoende_CH
dc.publisherSpringerde_CH
dc.relation.ispartofBioprocess and Biosystems Engineeringde_CH
dc.rightsLicence according to publishing contractde_CH
dc.subjectBioreactorsde_CH
dc.subjectEnzymesde_CH
dc.subjectHydrolysisde_CH
dc.subjectBiomassde_CH
dc.subjectProcess Developmentde_CH
dc.subject.ddc660: Technische Chemiede_CH
dc.titleCharacterization of stirrers for screening studies of enzymatic biomass hydrolyses on a milliliter scalede_CH
dc.typeBeitrag in wissenschaftlicher Zeitschriftde_CH
dcterms.typeTextde_CH
zhaw.departementLife Sciences und Facility Managementde_CH
zhaw.organisationalunitInstitut für Chemie und Biotechnologie (ICBT)de_CH
dc.identifier.doi10.1007/s00449-012-0826-xde_CH
dc.identifier.pmid23010724de_CH
zhaw.funding.euNode_CH
zhaw.issue7de_CH
zhaw.originated.zhawNode_CH
zhaw.pages.end935de_CH
zhaw.pages.start927de_CH
zhaw.publication.statuspublishedVersionde_CH
zhaw.volume36de_CH
zhaw.publication.reviewPeer review (Publikation)de_CH
zhaw.webfeedChemieingenieurwesende_CH
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Riedlberger, P., Brüning, S., & Weuster-Botz, D. (2013). Characterization of stirrers for screening studies of enzymatic biomass hydrolyses on a milliliter scale. Bioprocess and Biosystems Engineering, 36(7), 927–935. https://doi.org/10.1007/s00449-012-0826-x
Riedlberger, P., Brüning, S. and Weuster-Botz, D. (2013) ‘Characterization of stirrers for screening studies of enzymatic biomass hydrolyses on a milliliter scale’, Bioprocess and Biosystems Engineering, 36(7), pp. 927–935. Available at: https://doi.org/10.1007/s00449-012-0826-x.
P. Riedlberger, S. Brüning, and D. Weuster-Botz, “Characterization of stirrers for screening studies of enzymatic biomass hydrolyses on a milliliter scale,” Bioprocess and Biosystems Engineering, vol. 36, no. 7, pp. 927–935, 2013, doi: 10.1007/s00449-012-0826-x.
RIEDLBERGER, Peter, Stefanie BRÜNING und Dirk WEUSTER-BOTZ, 2013. Characterization of stirrers for screening studies of enzymatic biomass hydrolyses on a milliliter scale. Bioprocess and Biosystems Engineering. 2013. Bd. 36, Nr. 7, S. 927–935. DOI 10.1007/s00449-012-0826-x
Riedlberger, Peter, Stefanie Brüning, and Dirk Weuster-Botz. 2013. “Characterization of Stirrers for Screening Studies of Enzymatic Biomass Hydrolyses on a Milliliter Scale.” Bioprocess and Biosystems Engineering 36 (7): 927–35. https://doi.org/10.1007/s00449-012-0826-x.
Riedlberger, Peter, et al. “Characterization of Stirrers for Screening Studies of Enzymatic Biomass Hydrolyses on a Milliliter Scale.” Bioprocess and Biosystems Engineering, vol. 36, no. 7, 2013, pp. 927–35, https://doi.org/10.1007/s00449-012-0826-x.


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