Express Method for Redox Potential and pH Measuring in Microbial Cultures
The new modification of potentiometric pH and Eh measuring was developed. The essence of the method is to measure pH and Eh in compact hermetic redox cell. This modification provides reliable and fast pH and Eh measuring with minimum expense of culture liquid (1 cm3 for each measuring). The applicat...
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Bulgarian Academy of Sciences
2014-09-01
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Online Access: | http://www.biomed.bas.bg/bioautomation/2014/vol_18.3/files/18.3_05.pdf |
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doaj-9877022cb0ce45188c85201d285b00682020-11-25T03:27:40ZengBulgarian Academy of SciencesInternational Journal Bioautomation1314-19021314-23212014-09-01183217230Express Method for Redox Potential and pH Measuring in Microbial CulturesOleksandr Tashyrev0Ievgeniia PrekrasnaDepartment of Extremophilic Microorganisms Biology, Zabolotny Institute of Microbiology and Virology University, National Academy of Sciences of Ukraine, 154 Zabolotnogo Str., Kyiv D03680, UkraineThe new modification of potentiometric pH and Eh measuring was developed. The essence of the method is to measure pH and Eh in compact hermetic redox cell. This modification provides reliable and fast pH and Eh measuring with minimum expense of culture liquid (1 cm3 for each measuring). The application of the developed modification in microbiology was shown on the example of bacterial culture Kocuria carniphila isolated from Negev desert soil (Israel). Dynamics of the Eh changing in the growing culture allows establishing the influence of the carbon and energy sources concentration on the microbial growth, the rate of oxygen consumption and character of microbial interaction with toxic compounds. Copiotriphic conditions (800 mg/l C) were shown to be optimal for K. carniphila. It was shown that K. carniphila was resistant to 200 ppm of Cu2+, nevertheless it did not extract Cu2+ out of liquid medium.http://www.biomed.bas.bg/bioautomation/2014/vol_18.3/files/18.3_05.pdfRedox potentialMethod modificationKocuria carniphilaCarbon concentrationCopper |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Oleksandr Tashyrev Ievgeniia Prekrasna |
spellingShingle |
Oleksandr Tashyrev Ievgeniia Prekrasna Express Method for Redox Potential and pH Measuring in Microbial Cultures International Journal Bioautomation Redox potential Method modification Kocuria carniphila Carbon concentration Copper |
author_facet |
Oleksandr Tashyrev Ievgeniia Prekrasna |
author_sort |
Oleksandr Tashyrev |
title |
Express Method for Redox Potential and pH Measuring in Microbial Cultures |
title_short |
Express Method for Redox Potential and pH Measuring in Microbial Cultures |
title_full |
Express Method for Redox Potential and pH Measuring in Microbial Cultures |
title_fullStr |
Express Method for Redox Potential and pH Measuring in Microbial Cultures |
title_full_unstemmed |
Express Method for Redox Potential and pH Measuring in Microbial Cultures |
title_sort |
express method for redox potential and ph measuring in microbial cultures |
publisher |
Bulgarian Academy of Sciences |
series |
International Journal Bioautomation |
issn |
1314-1902 1314-2321 |
publishDate |
2014-09-01 |
description |
The new modification of potentiometric pH and Eh measuring was developed. The essence of the method is to measure pH and Eh in compact hermetic redox cell. This modification provides reliable and fast pH and Eh measuring with minimum expense of culture liquid (1 cm3 for each measuring). The application of the developed modification in microbiology was shown on the example of bacterial culture Kocuria carniphila isolated from Negev desert soil (Israel). Dynamics of the Eh changing in the growing culture allows establishing the influence of the carbon and energy sources concentration on the microbial growth, the rate of oxygen consumption and character of microbial interaction with toxic compounds. Copiotriphic conditions (800 mg/l C) were shown to be optimal for K. carniphila. It was shown that K. carniphila was resistant to 200 ppm of Cu2+, nevertheless it did not extract Cu2+ out of liquid medium. |
topic |
Redox potential Method modification Kocuria carniphila Carbon concentration Copper |
url |
http://www.biomed.bas.bg/bioautomation/2014/vol_18.3/files/18.3_05.pdf |
work_keys_str_mv |
AT oleksandrtashyrev expressmethodforredoxpotentialandphmeasuringinmicrobialcultures AT ievgeniiaprekrasna expressmethodforredoxpotentialandphmeasuringinmicrobialcultures |
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1724587683376791552 |