Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/1592
Registo completo
Campo DC | Valor | Idioma |
---|---|---|
dc.contributor.author | Vicente, A. A. | - |
dc.contributor.author | Dluhý, M. | - |
dc.contributor.author | Teixeira, J. A. | - |
dc.date.accessioned | 2005-05-16T10:43:51Z | - |
dc.date.available | 2005-05-16T10:43:51Z | - |
dc.date.issued | 1999-06 | - |
dc.identifier.citation | Vicente, A.A., Dluhý, M. and Teixeira, J.A. (1999), Increase of ethanol productivity in an airlift reactor with a modified draught tube. Can. J. Chem. Eng., 77: 497-502. https://doi.org/10.1002/cjce.5450770309 | eng |
dc.identifier.issn | 0008-4034 | - |
dc.identifier.uri | https://hdl.handle.net/1822/1592 | - |
dc.description.abstract | Static mixers were introduced in the draught tube of a three-phase, concentric tube type airlift bioreactor, resulting in a 30% increase in ethanol productivity during glucose fermentation with a highly flocculent strain of Saccharomyces cerevisiae. Increased productivity was obtained as a consequence of the floc size reduction provoked by the new design of the draught tube and of the smaller applied aeration rates, allowing a higher dilution rate to be used. Steady state data at different dilution rates were measured for both systems and the results were compared in terms of specific consumption / production rates and ethanol productivity. An approach based on heterogeneous catalysis principles was used in order to consider the presence of porous yeast flocs. Total glucose conversion was achieved at a dilution rate of 0.34 hˉ¹. The smaller floc size contributed to the higher observed reaction rates by reducing diffusional limitations inside the flocs. The respiratory quotient had a constant value (around 23) at all dilution rates, meaning that the metabolic state of the cells in the flocs remained constant, having a strong fermentative metabolism. | eng |
dc.description.sponsorship | Junta Nacional de Investigação Científica e Tecnológica (JNICT); Instituto de Biotecnologia e Química Fina (IBQF). | por |
dc.language.iso | eng | eng |
dc.publisher | Wiley-Blackwell | eng |
dc.rights | openAccess | eng |
dc.subject | Ethanol productivity | eng |
dc.subject | Airlift | eng |
dc.subject | Fermentation | eng |
dc.subject | Yeast flocs | eng |
dc.subject | Static mixers | eng |
dc.subject | Yeast floes | por |
dc.title | Increase of ethanol productivity in an airlift reactor with a modified draught tube | eng |
dc.type | article | eng |
dc.peerreviewed | yes | eng |
oaire.citationStartPage | 497 | por |
oaire.citationEndPage | 502 | por |
oaire.citationIssue | 3 | por |
oaire.citationVolume | 77 | por |
dc.identifier.doi | 10.1002/cjce.5450770309 | por |
dc.subject.wos | Science & Technology | por |
sdum.journal | Canadian Journal of Chemical Engineering | por |
Aparece nas coleções: | CEB - Publicações em Revistas/Séries Internacionais / Publications in International Journals/Series |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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1999-22[1].pdf | 551,65 kB | Adobe PDF | Ver/Abrir |