Zobrazeno 1 - 5
of 5
pro vyhledávání: '"Emrah Altuntepe"'
Autor:
Sergey P. Verevkin, Emrah Altuntepe, Maximilian Forster-Rotgers, Vladimir N. Emel’yanenko, Christoph Held, Gabriele Sadowski
Publikováno v:
Applied Microbiology and Biotechnology. 101:7509-7521
Levulinic acid was esterified with methanol, ethanol, and 1-butanol with the final goal to predict the maximum yield of these equilibrium-limited reactions as function of medium composition. In a first step, standard reaction data (standard Gibbs ene
Autor:
Gabriele Sadowski, Emrah Altuntepe, Christoph Held, Tom Briesemann, Joscha Brinkmann, Annika Reinhardt
Publikováno v:
Journal of Chemical & Engineering Data. 62:1983-1993
This work provides experimental data and thermodynamic modeling on phase equilibria of binary mixtures that are relevant for esterification reactions. The components under investigation include water, succinic acid (SA), ethanol (EtOH), 1-butanol (1-
Autor:
Christoph Held, Tülay Köse, Sultan Mohammad, Irina Smirnova, Gabriele Sadowski, Thomas Gerlach, Emrah Altuntepe
Publikováno v:
Fluid Phase Equilibria. 416:83-93
In biotechnological processes, salts might be present during reaction steps and in downstream processes. Salts are known to have a strong impact on phase equilibria of aqueous systems. In this work, the liquid–liquid equilibria (LLE) of ternary sal
Publikováno v:
The Journal of Physical Chemistry B. 120:3797-3808
This study investigates the influence of electrolytes on the performance of extracting 5-hydroxymethylfurfural (HMF) from aqueous media using methyl isobutyl ketone (MIBK). For that purpose, liquid-liquid phase equilibria (LLE) of quaternary systems
Autor:
Thorsten Greinert, Christoph Held, Annika Reinhardt, Emrah Altuntepe, Felix Hartmann, Gabriele Sadowski
Publikováno v:
Applied microbiology and biotechnology. 101(15)
Succinic acid (SA) was esterified with ethanol using Candida antarctica lipase B immobilized on acrylic resin at 40 and 50 °C. Enzyme activity in the reaction medium was assured prior to reaction experiments. Reaction-equilibrium experiments were pe