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Enzymatic production of decyl acetate: kinetic study in n-hexane and comparison with supercritical CO2

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dc.contributor.authorRibeiro, Adriano S.
dc.contributor.authorOliveira, Manuela V.
dc.contributor.authorRebocho, Sílvia F.
dc.contributor.authorFerreira, Olga
dc.contributor.authorVidinha, Pedro
dc.contributor.authorBarreiros, Susana F.
dc.contributor.authorMacedo, Eugénia A.
dc.contributor.authorLoureiro, José M.
dc.date.accessioned2011-04-04T14:17:53Z
dc.date.available2011-04-04T14:17:53Z
dc.date.issued2010
dc.description.abstractThe kinetics of the lipase-catalyzed synthesis of decyl acetate, by the transesterification reaction of vinyl acetate with decanol, was investigated at 30 °C using n-hexane as the solvent. Novozym 435 was found to be the most active catalyst among the immobilized lipases tested. Given the nonideality of the reaction mixture, only a thermodynamic activity-based kinetics was found to be suitable to represent the experimental data in the entire range of compositions tested (0.1-1.4 M). The reaction follows a ping-pong bi-bi mechanism, in which inhibition only by excess of alcohol was identified. Although intraparticle diffusional limitations were detected, intrinsic kinetic parameters were obtained by crushing the catalyst particles. The results were compared to those obtained with supercritical CO2 as the solvent. For the conditions tested, Candida antarctica lipase B showed higher activity in the organic medium.por
dc.description.sponsorshipThe authors thank Fundacção para a Ciência e Tecnologia (Portugal) for A.S.R.’s Ph.D. grant (SFRH/BD/13084/2003) and for the financial support of the project POCI/EQU/56732/2004, FEDER for financing LSRE (FEDER/POCI/2010), Professor Romualdo Salcedo from FEUP for the optimization code, and Novozymes and Amano Enzyme Inc. for kindly providing the catalysts.por
dc.identifier.citationRibeiro, Adriano S.; Oliveira, Manuela V.; Rebocho, Sílvia F.; Ferreira, Olga; Vidinha, Pedro; Barreiros, Susana; Macedo, Eugénia A.; Loureiro, José M. (2010). Enzymatic production of decyl acetate: kinetic study in n-hexane and comparison with supercritical CO2. Industrial & Engineering Chemistry Research. ISSN 0888-5885. 49:16, p. 7168-7175.por
dc.identifier.doi10.1021/ie902026d
dc.identifier.eissn1520-5045
dc.identifier.issn0888-5885
dc.identifier.urihttp://hdl.handle.net/10198/3928
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherAmerican Chemical Societypor
dc.relationESTUDOS DE CATÁLISE ENZIMÁTICA EM MEIO SUPERCRÍTICO
dc.relationDecyl acetate synthesis by enzymatic catalysis in supercritical media
dc.subjectEnzymztic catalysispor
dc.subjectSupercritical CO2por
dc.titleEnzymatic production of decyl acetate: kinetic study in n-hexane and comparison with supercritical CO2por
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleESTUDOS DE CATÁLISE ENZIMÁTICA EM MEIO SUPERCRÍTICO
oaire.awardTitleDecyl acetate synthesis by enzymatic catalysis in supercritical media
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBD%2F13084%2F2003/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/POCI/POCI%2FEQU%2F56732%2F2004/PT
oaire.citation.endPage7175por
oaire.citation.startPage7168por
oaire.citation.titleIndustrial and Engineering Chemistry Researchpor
oaire.fundingStreamPOCI
person.familyNameAmorim Sá Ferreira
person.givenNameMaria Olga
person.identifier.ciencia-id9F1D-C75A-4A54
person.identifier.orcid0000-0001-8414-3479
person.identifier.ridM-4567-2013
person.identifier.scopus-author-id57203083219
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsrestrictedAccesspor
rcaap.typearticlepor
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relation.isAuthorOfPublication.latestForDiscovery59e0c608-0c21-4191-af5e-529d21970399
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