Solvent effects on equilibrium position and initial rate of lipase-catalyzed esterification reactions in organic solvents: Experimental results and prediction capabilities (Journal article)

Voutsas, E. C./ Stamatis, H./ Kolisis, F. N./ Tassios, D.

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dc.contributor.authorVoutsas, E. C.en
dc.contributor.authorStamatis, H.en
dc.contributor.authorKolisis, F. N.en
dc.contributor.authorTassios, D.en
dc.date.accessioned2015-11-24T16:32:54Z-
dc.date.available2015-11-24T16:32:54Z-
dc.identifier.issn1024-2422-
dc.identifier.urihttps://olympias.lib.uoi.gr/jspui/handle/123456789/7597-
dc.rightsDefault Licence-
dc.subjectenzymesen
dc.subjectesterificationen
dc.subjectsolventen
dc.subjectunifacen
dc.subjectsubstrate-specificityen
dc.subjectkinetic-parametersen
dc.subjectester hydrolysisen
dc.subjectsystemsen
dc.subjectmediaen
dc.subjectbiocatalysisen
dc.subjectcoefficientsen
dc.subjectenzymesen
dc.subjectmodelen
dc.titleSolvent effects on equilibrium position and initial rate of lipase-catalyzed esterification reactions in organic solvents: Experimental results and prediction capabilitiesen
heal.typejournalArticle-
heal.type.enJournal articleen
heal.type.elΆρθρο Περιοδικούel
heal.identifier.primaryDoi 10.1080/10242420290018087-
heal.identifier.secondary<Go to ISI>://000176147700003-
heal.identifier.secondaryhttp://informahealthcare.com/doi/abs/10.1080/10242420290018087-
heal.languageen-
heal.accesscampus-
heal.recordProviderΠανεπιστήμιο Ιωαννίνων. Σχολή Επιστημών και Τεχνολογιών. Τμήμα Βιολογικών Εφαρμογών και Τεχνολογιώνel
heal.publicationDate2002-
heal.abstractThe solvent effect on the equilibrium position and the initial rate of esterification of 1-hexanol with acetic acid catalyzed by a lipase has been experimentally investigated. A variety of non-polar and polar solvents have been considered and the results obtained indicate that the solvent effect on the equilibrium conversion is very important compared to that for transesterification reactions. A theoretically sound methodology using the group-contribution UNIFAC model for the prediction of solvent effects on the equilibrium position of enzymatic reactions is presented and it is applied to the reaction of 1-hexanol with acetic acid as well as to a similar reaction from the literature. The results obtained are better than those from empirical methods proposed in the literature such as correlations with the octanol-water partition coefficient of the solvent, as well as the solubility of water in the solvent. Moreover, the proposed methodology can be used for the determination of the equilibrium constant of the reaction. For the prediction of the solvent effect on the initial rate of enzymatic reactions it is found that it is more accurately determined using the product of the activities of the reactants, which can be predicted by the UNIFAC model, than the octanol-water partition coefficient of the solvent or the solubility of water in the solvent.en
heal.journalNameBiocatalysis and Biotransformationen
heal.journalTypepeer reviewed-
heal.fullTextAvailabilityTRUE-
Appears in Collections:Άρθρα σε επιστημονικά περιοδικά ( Ανοικτά)



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