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Kinetic modeling of the autotrophic growth of pavlova lutheri: Study of the combined influence of light and temperature

2003Journal article Open access
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dc.contributor.authorCarvalho, Ana P.
dc.contributor.authorMalcata, F. Xavier
dc.date.accessioned2011-10-23T09:26:24Z
dc.date.available2011-10-23T09:26:24Z
dc.date.issued2003
dc.description.abstractThe optimization and control of biochemical processes require the previous establishment of mathematical models that can describe the effect of process variables on their actual kinetics. Environmental temperature is a modulating factor to which the algal cells respond continuously by adjusting their rates of cellular reactions, their nutritional requirements, and, consequently, their biomass composition. Light intensity is an exhaustible resource, indispensable to autotrophic organisms. The effects of light intensity and temperature on growth of the microalga Pavlova lutheri, which have hardly been considered to date in a simultaneous fashion, were experimentally assessed using a factorial experimental design; in this way, the effects of each variable independently and their interactions could be quantified, using maximum biomass (Xmax) or maximum specific growth rate (μmax) as objective functions. The preliminary results produced indicated that light intensity plays a more important role on μmax than temperature; in the case of Xmax, both temperature and, to a lesser extent, light intensity do apparently play a role. The highest values of Xmax were associated with low temperatures and high light intensities; a similar behavior could be observed for μmax concerning light intensity, although the dependency on temperature did not seem to be as important. A more complex mechanistic model was then postulated, incorporating light and temperature as input variables, which was successfully fitted to the experimental data generated during batch cultivation of P. lutheri.por
dc.description.versioninfo:eu-repo/semantics/acceptedVersion
dc.identifier.citationCARVALHO, Ana P. ; MALCATA, F. Xavier - Kinetic Modeling of the Autotrophic Growth of Pavlova lutheri: Study of the Combined Influence of Light and Temperature. Biotechnology Progress. ISSN 1520-6033. Vol. 19, n.º 4 (2003), p. 1128–1135por
dc.identifier.doi10.1021/bp034083
dc.identifier.urihttp://hdl.handle.net/10400.14/6919
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherACS Publication; American Institute of Chemical Engineerspor
dc.titleKinetic modeling of the autotrophic growth of pavlova lutheri: Study of the combined influence of light and temperaturepor
dc.typejournal article
dspace.entity.typePublication
person.familyNameCarvalho
person.familyNameMalcata
person.givenNameAna
person.givenNameFrancisco
person.identifierK-5479-2013
person.identifier.ciencia-id6F1E-301F-71BA
person.identifier.ciencia-id1B13-38A5-35F5
person.identifier.orcid0000-0001-5967-4200
person.identifier.orcid0000-0003-3073-1659
person.identifier.ridK-5479-2013
person.identifier.scopus-author-id36855267200
person.identifier.scopus-author-id7102542478
rcaap.rightsopenAccesspor
rcaap.typearticlepor
relation.isAuthorOfPublication61e93e5c-d206-455d-84cb-d5cbc048ee5b
relation.isAuthorOfPublicationa06c00da-0e2f-4434-8ede-4d7b22c0dfe9
relation.isAuthorOfPublication.latestForDiscoverya06c00da-0e2f-4434-8ede-4d7b22c0dfe9

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