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Generation of electricity through yeast Galactomyces sp.

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Date of Conference

July 18-22, 2022

Published In

"Education, Research and Leadership in Post-pandemic Engineering: Resilient, Inclusive and Sustainable Actions"

Location of Conference

Boca Raton


De La Cruz Noriega, M.

Rojas Flores, S.

Nazario Naveda, R.

Benites, Santiago M.

Delfín Narciso, D.

Vives Garnique, Juan Carlos


In the search for new fuels capable of generating electrical energy in a sustainable and environmentally friendly way, this research used the yeast Galactomyces sp in low-cost, laboratory-scale microbial fuel cells to provide a new innovative solution. Microbial fuel cells were made of polyethylene with zinc and copper electrodes as anode and cathode, respectively. Managing to generate peak values of current and voltage in open circuit of 4.23033 ± 0.3102 mA and 0.7522 ± 0.03573 V, with an optimal pH of 7.84772 ± 0.21744 and peak electrical conductivity of the substrate of 58.89078 ± 2.51661 mS/cm. Similarly, the power density displayed was 4.749 ± 0.294 W/cm2 with a current density of 351.086 mA/cm2. Finally, the microbial fuel cells were connected in series, generating 2.60 V and turning on a green led light. Giving in this way a new and promising use of this yeast to generate electricity

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