E.R. Faskhutdinova1, M.Yu. Drozdova2, A.I. Dmitrieva3

1–3 Kemerovo State University (Kemerovo, Russia)

The active use of oil, gas and coal causes irreparable damage to the environment. A new and promising solution to this problem is the technology of a microbial fuel cell, which allows converting chemical energy into electrical energy. The key role in this system belongs to microorganisms with electroactive properties. The purpose of this review is to study the electroactive properties of various groups of microorganisms to obtain environmentally friendly energy.

Among the electroactive microorganisms, bacteria, fungi, yeast and microalgae are isolated. The most common electroactive microorganisms are Shewanella and Geobacter bacteria due to the ability to generate a significant amount of energy, the annotated sequence of the Shewanella genome and the ability of Geobacter to participate in bioremediation. Pseudomonas aeruginosa and Escherichia coli generate a relatively low amount of energy, besides their electroactive ability is due to genetic manipulation. Electroactive microorganisms are also representatives of yeast (Candida fukuyamaensis, Lipomyces starkeyi and Saccharomyces cerevisiae) and white rot fungi (Ganoderma lucidum, Pleurotus eryngii, Simplicillium oblavatum). Promising electroactive microorganisms are microalgae. They are able to synthesize energy in light conditions. Microalgae such as Chlorella sp have found their application in microbial fuel cell technology.

During the scientific review, it was found that electroactive microorganisms are present in many groups of microorganisms. Understanding their diversity and unique electronic capabilities leads to a wide range of applications, for example, the removal of heavy metals and azo dyes from wastewater, polycyclic aromatic hydrocarbons from wastewater, as well as salt water desalination.

Faskhutdinova E.R., Drozdova M.Yu., Dmitrieva A.I. Prospects for the use of electroactive microorganisms for the production of environmentally friendly energy. Technologies of Living Systems. 2022. V. 19. № 4. Р. 70-82. DOI: https://doi.org/10.18127/j20700997-202204-07 (In Russian)

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