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ISSN 2410-7751 (Print)
ISSN 2410-776X (Online)

 3 2013

"Biotechnologia Acta" v. 6, no. 3, 2013
https://doi.org/10.15407/biotech6.03.046
Р. 46-52, Bibliography 19, Ukrainian.
Universal Decimal classification: 543.555 + 543.635.226 + 577.152.119

ENZYME CONDUCTOMETRIC BIOSENSOR FOR FRUCTOSE DETERMINATION

O. Y. Dudchenko1, 2, V. N. Pyeshkova1,
O. O. Soldatkin1, O. P. Soldatkin1, 2, S. V. Dzyadevych1, 2

1Institute of Molecular Biology and Genetics of National Academy of Sciences of Ukraine, Kyiv
2Institute of High Technologies of Kyiv National Taras Shevchenko University, Ukraine

The conductometric biosensor for fructose determination based on fructose dehydrogenase and potassium ferricyanide mediator as electron acceptor has been developed. The enzyme was immobilized on a surface of the conductometric transducer together with bovine serum albumin using crosslinking with glutaraldehyde. Working conditions of the discribed fructose biosensor were optimized. The results concerning influence of the buffer solution concentration and potassium ferricyanide concentration on the biosensor performance are given. The fructose biosensor is characterized by high signal reproducibility and selectivity to fructose. The developed conductometric biosensor can be successfully used for fructose monitoring in the procedures of food and clinical diagnostic.

Key words: conductometric biosensor, fructose, fructose dehydrogenase, potassium ferricyanide.

© Palladin Institute of Biochemistry of National Academy of Sciences of Ukraine, 2013