Selection of reaction system for dipeptides enzymatic synthesis

• Authors: A. Trusek-Holownia , A. Noworyta
• Languages of publication: PL

Abstracts

EN

Synthesis of dipeptides in water, in the solution of water/organic cosolvent and in the binary aqueous-organic system was studied. A set of equlibrium equations was determined and used to predict a product yield. Reagents activities served as variable. Verification of equation's validity was performed in the synthesis of ZAlaPheOMe dipeptide catalysed by thermolysin. The reaction was carried out in water, metanol-water solution and in binary system ethyl acetate - water. It was shown that the synthesis in the binary system was the most effective. It was concluded that the efficiency of ethyl acetate - water system resulted from: 1) improvement of the reagents solubility; 2) product extraction into the organic phase. An insignificant difference in enzyme stability when thermolysin was immersed in water or in the ethyl acetate - water system was observed. Process kinetics in the binary system will be the aim of the next studies.

Keywords

EN

DIPEPTIDE; EQULIBRIUM EQUATION; ORGANIC SOLVENT

Discipline

• BIOTECHNOLOGY: BIOTECHNOLOGY

• Publisher: Committee of Biotechnology, Polish Academy of Sciences
• Journal: Biotechnologia
• Year: 2000
• Issue: 1
• Pages: 156-170

Contributors

author

A. Trusek-Holownia

author

A. Noworyta

• Document Type: review
• Publication order reference: A. Noworyta, Instytut Inzynierii Chemicznej i Urzadzen Cieplnych, Politechnika Wroclawska, ul. Norwida 4/6, 50-373 Wroclaw, Poland, e mail; [e-mail]