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University Twente – Electrodialysis of amino acids

Last updated 989 days ago by Albert Verver


NL GUTS Group of Users of Technology for Separation in the Netherlands


20130226 University Twente – Mrs. Olga Kattan - Electrodialysis of amino acids for the production of biochemicals

The MESA+ Nanotechnology Group of UT investigates bio-refinery concepts for the production of industrial materials applying membranes. Focus here is to separate the different amino-acids generated from cheap protein sources into the pure compounds by applying ED making use of electrical charge dependency from pH. The proof of principle was demonstrated for the Aspartic acid –Glutamic acid mixture; for the γ-Aminobutyric acid – Aspartic acid mixture enhanced by enzymatic conversion and for similar mixtures including neutral amino acids. To avoid the use of pH- control chemicals bi-polar ED membranes were used for OH- and H+ .

Complex mixtures were successfully separated, including tackling the negative properties of Arginine by optimizing between EDUF and SPEEK membranes. Mixed Matrix Membranes in this ED - enzymatic conversion field require further development www.utwente.nl


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