التفاصيل البيبلوغرافية
العنوان: |
Utilization of enzyme cascades for complete oxidation of lactate in an enzymatic biofuel cell |
المؤلفون: |
Sokic-Lazic, Daria1, de Andrade, Adalgisa Rodrigues2, Minteer, Shelley D.1 minteers@slu.edu |
المصدر: |
Electrochimica Acta. Dec2011, Vol. 56 Issue 28, p10772-10775. 4p. |
مصطلحات موضوعية: |
*ELECTROLYTIC oxidation, *ENZYMES, *BIOMASS energy, *ANODES, *LACTATE dehydrogenase, *PYRUVATES, *IMMOBILIZED enzymes |
مستخلص: |
Abstract: Lactate/lactic acid has been considered as a biofuel for enzymatic biofuel cells, but only with single enzyme bioanodes containing lactate dehydrogenase. A single enzyme-based bioanode results in the oxidation of lactate to pyruvate, which only allows for 2 of the total of 12 electrons to be harnessed from the lactate leaving the majority of the energy density of the fuel in the oxidized product (pyruvate); thereby, resulting in low energy density biofuel cells. This paper details an enzyme cascade for complete oxidation of lactate immobilized on a bioanode and employed in a lactate/air biofuel cell. This paper shows that complete oxidation of lactate increases the current density and power density of the biofuel cell, in a similar trend as was observed for complete oxidation of pyruvate in an enzymatic biofuel cell. [Copyright &y& Elsevier] |
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