Production of Ethanol in Electrochemical Cell Using Saccharomyces Cereviseae and Wickerhamomyces Anomalous As Counter Microbes
Ethanol production by the yeast strains Saccharomyces cerevisiae and Wickerhamomyces anomalous was done by simultaneously cultivating the yeasts in the anode and the cathode of an electrochemical cell alternatively on either side of the electrolytic compartments. When Saccharomyces cerevisiae was cu...
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Published in | Meeting abstracts (Electrochemical Society) Vol. MA2017-01; no. 20; p. 1071 |
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Main Authors | , , , , |
Format | Journal Article |
Language | English |
Published |
15.04.2017
|
Online Access | Get full text |
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Summary: | Ethanol production by the yeast strains
Saccharomyces cerevisiae
and
Wickerhamomyces anomalous
was done by simultaneously cultivating the yeasts in the anode and the cathode of an electrochemical cell alternatively on either side of the electrolytic compartments.
When
Saccharomyces cerevisiae
was cultivated on a platinum plate anode and
Wickerhamomyces anomalus
was cultivated in graphite rod cathode and an external electric potential of 4V was applied to induce the electrochemical redox reaction in the anode and cathode compartment of an electrochemical cell using glucose as a substrate, 27.61±0.35 mg/ml ethanol was produced. However counter combination produced only 24.78±0.45 mg/ml ethanol. Electrochemical oxidation potential inhibited
Wickerhamomyces anomalus
but showed a reduced effect on
Saccharomyces cerevisiae
. Graphite rod when modified by the immobilization of neutral red as a mediator of electron transfer showed improvement in ethanol production. The
Wickerhamomyces anomalus
when cultured with modified graphite rod and
Saccharomyces cerevisiae
when cultured in the anode 11.67% more than the neutral red non-immobilized combination of
Saccharomyces cerevisiae
and
Wickerhamomyces anomalus
and 64.28% more than that of the control maintained without the supply of external voltage.
Key words:
Saccharomyces cerevisiae, Wickerhamomyces anomalus
, Electrochemical cell, Neutral red, Platinum, Graphite rod
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ISSN: | 2151-2043 2151-2035 |
DOI: | 10.1149/MA2017-01/20/1071 |