Effects of a static magnetic field on phenol degradation effectiveness and Rhodococcus erythropolis growth and respiration in a fed-batch reactor
Jazyk angličtina Země Anglie, Velká Británie Médium print-electronic
Typ dokumentu časopisecké články, práce podpořená grantem
PubMed
25013934
DOI
10.1016/j.biortech.2014.06.060
PII: S0960-8524(14)00914-6
Knihovny.cz E-zdroje
- Klíčová slova
- Bacterial degradation enhanced, Fed-batch bioreactor, Phenol biodegradation, Rhodococcus erythropolis, Static magnetic field,
- MeSH
- aerobióza MeSH
- biodegradace MeSH
- bioreaktory mikrobiologie MeSH
- fenol metabolismus MeSH
- magnetické pole * MeSH
- počítačová simulace MeSH
- Rhodococcus růst a vývoj metabolismus MeSH
- techniky vsádkové kultivace přístrojové vybavení MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
- Názvy látek
- fenol MeSH
The aim of this study was to evaluate the impact of short-term repeated exposure to a static magnetic field (induction 370 mT) on the Rhodococcus erythropolis cells. Specifically, it was ascertained the magnetic field's potential to influence degradation of a phenol substrate, cell growth and respiration activity (oxygen consumption) during substrate biodegradation. The experiment took place over 3 days, with R. erythropolis exposed to the magnetic field for the first day. During the experiment, different recirculation rates between the reactor and the magnetic contactor has been tested. Use of the magnetic field at higher recirculation rates (residence time in contactor was less than 7 min) stimulated substrate (phenol) oxidation by around 34%; which, in turn, promoted R. erythropolis growth by around 28% by shortening the lag- and exponential-phases and increasing bacterial respiration activity by around 10%.
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