Liquid–liquid equilibrium and molecular toxicity of active and inert diluents of the organic mixture tri-iso-octylamine/dodecanol/dodecane as a potential liquid membrane for lactic acid removal
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Autor:innen
Autor:in (Körperschaft)
Publikationsdatum
2019
Typ der Arbeit
Studiengang
Typ
01A - Beitrag in wissenschaftlicher Zeitschrift
Herausgeber:innen
Herausgeber:in (Körperschaft)
Betreuer:in
Übergeordnetes Werk
Journal of Chemical & Engineering Data
Themenheft
DOI der Originalpublikation
Link
Reihe / Serie
Reihennummer
Jahrgang / Band
64
Ausgabe / Nummer
7
Seiten / Dauer
3028-3035
Patentnummer
Verlag / Herausgebende Institution
American Chemical Society
Verlagsort / Veranstaltungsort
Auflage
Version
Programmiersprache
Abtretungsempfänger:in
Praxispartner:in/Auftraggeber:in
Zusammenfassung
Lactic acid can be in situ removed from a fermentation broth through reactive liquid extraction or a liquid membrane to enhance the fermentation process. The organic mixture tri-iso-octylamine (TiOA)/dodecanol/dodecane at 10 vol % of the amine is a potential organic mixture for lactic acid removal. Liquid–liquid equilibria with lactic acid aqueous solutions and molecular toxicity on the bacteria Lactobacillus casei ATCC 393 were measured with several dodecanol proportions in dodecane (0 to 90 vol %) and 10 vol % TiOA as potential solvents or membrane phases for LA removal from a fermentation broth. Effects of the organic phase on the bacteria as cell growth, biomass production, glucose consumption, productivity, and product to biomass yield are analyzed. Dodecanol increases the lactic acid chemical equilibrium constant for the liquid–liquid equilibria, while increasing the molecular toxicity on the bacteria. However, for dodecanol concentrations from 30 to 40 vol % the value of the chemical equilibrium constant is high enough for lactic acid distribution between the phases and its toxicity is low enough on the bacteria, making a proper range of dodecanol concentrations for lactic acid removal. Also, the distribution coefficient and the chemical equilibrium constant are fitted as a function of the dodecanol concentration in the organic mixture.
Schlagwörter
Fachgebiet (DDC)
540 - Chemie
Veranstaltung
Startdatum der Ausstellung
Enddatum der Ausstellung
Startdatum der Konferenz
Enddatum der Konferenz
Datum der letzten Prüfung
ISBN
ISSN
0021-9568
1520-5134
1520-5134
Sprache
Englisch
Während FHNW Zugehörigkeit erstellt
Nein
Zukunftsfelder FHNW
Publikationsstatus
Veröffentlicht
Begutachtung
Peer-Review der ganzen Publikation
Open Access-Status
Closed
Lizenz
Zitation
PÉREZ, Alan, Verónica M. GÓMEZ, Sneyder RODRÍGUEZ-BARONA und Javier FONTALVO, 2019. Liquid–liquid equilibrium and molecular toxicity of active and inert diluents of the organic mixture tri-iso-octylamine/dodecanol/dodecane as a potential liquid membrane for lactic acid removal. Journal of Chemical & Engineering Data. 2019. Bd. 64, Nr. 7, S. 3028–3035. DOI 10.1021/acs.jced.9b00132. Verfügbar unter: https://irf.fhnw.ch/handle/11654/43563