Multicopper Oxidase-Catalyzed Biotransformation of Dihydroquercetin


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Abstract

Multicopper oxidases such as bilirubin oxidase (BOD) from Myrothecium verrucaria and laccase (LC) from the basidial fungus Trametes hirsuta have been used as catalysts in dihydroquercetin (DHQ) oxidative polymerization. The conditions selected enabled good yields of DHQ oligomers, which were then analyzed using UV-vis, FTIR, 1Н and 13С NMR spectroscopy. DHQ oligomers synthesized using both enzymes showed higher thermostability as compared with the monomer. Depending on the oxidase, the products of DHQ polymerization differed in physicochemical properties, and as shown by NMR studies, had different structures.

About the authors

M. E. Khlupova

Bach Institute of Biochemistry, Research Center of Biotechnology

Email: yaropolov@inbi.ras.ru
Russian Federation, Moscow, 119071

I. S. Vasil’eva

Bach Institute of Biochemistry, Research Center of Biotechnology

Email: yaropolov@inbi.ras.ru
Russian Federation, Moscow, 119071

G. P. Shumakovich

Bach Institute of Biochemistry, Research Center of Biotechnology

Email: yaropolov@inbi.ras.ru
Russian Federation, Moscow, 119071

O. V. Morozova

Bach Institute of Biochemistry, Research Center of Biotechnology

Email: yaropolov@inbi.ras.ru
Russian Federation, Moscow, 119071

E. A. Zaitseva

Department of Enzymology, Faculty of Chemistry

Email: yaropolov@inbi.ras.ru
Russian Federation, Moscow, 119991

V. A. Chertkov

Department of Organic Chemistry, Faculty of Chemistry

Email: yaropolov@inbi.ras.ru
Russian Federation, Moscow, 119991

A. K. Shestakova

State Research Institute of Chemistry and Technology of Organoelement Compounds

Email: yaropolov@inbi.ras.ru
Russian Federation, Moscow, 119334

A. V. Kisin

State Research Institute of Chemistry and Technology of Organoelement Compounds

Email: yaropolov@inbi.ras.ru
Russian Federation, Moscow, 119334

A. I. Yaropolov

Bach Institute of Biochemistry, Research Center of Biotechnology

Author for correspondence.
Email: yaropolov@inbi.ras.ru
Russian Federation, Moscow, 119071

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