Effect of electromagnetic fields on the denitrification activity of Paracoccus denitrificans

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14110%2F07%3A00019359" target="_blank" >RIV/00216224:14110/07:00019359 - isvavai.cz</a>

Alternative codes found

RIV/00159816:_____/07:#0000224 RIV/68081707:_____/07:00345210

Result on the web

—

DOI - Digital Object Identifier

—

Result language

angličtina

Original language name

Effect of electromagnetic fields on the denitrification activity of Paracoccus denitrificans

Original language description

Enzymatic activity (denitrification) of Paracoccus denitrificans was estimated electrochemically by reduction of duroquinone (DQ). Graphite electrodes covered with whole bacterial cells behind a dialysis membrane were used for measurement. P. denitrificans reduce nitrate and/or nitrite under anaerobic conditions to nitrogen gas. DQ acts as an electron mediator. After donation of the electrons to the respiratory system of the bacteria, produced DQ is reduced to durohydroquinone on the electrode surface electrocatalytically. P. denitrificans were exposed to low-frequency magnetic field (10 mT, 50 Hz) for 24 min. In comparison with the control samples, the reduction peak that represents denitrification activity of the cells decreased significantly after magnetic field exposure. The decrease of the peak current was about 20%. The CFU-colony forming units-method was used to estimate the number of surviving bacteria. After 24 min exposure of 10 mT magnetic field P. denitrificans culture on e

Czech name

Vliv elektromagnetických polí na denitrifikační aktivitu Paracoccus denitrificans.

Czech description

Enzymatická aktivita (denitrifikace) Paracoccus denitrificans byla sledována eletrochemicky redukcí durochinonu.

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BO - Biophysics

OECD FORD branch

—

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2007

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Bioelectrochemistry

ISSN

1567-5394

e-ISSN

—

Volume of the periodical

70

Issue of the periodical within the volume

1

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

5

Pages from-to

91-95

UT code for WoS article

—

EID of the result in the Scopus database

—