
In the third session of the Biotechnology Seminar hosted by the Faculty of Agriculture, Universitas Gadjah Mada (Faperta UGM), Dr. Kengo Inoue from the Faculty of Agriculture, Miyazaki University presented his research on electrogenic microbial communities in Microbial Fuel Cell (MFC) systems. His work demonstrates the dual functionality of these systems in treating liquid waste while simultaneously generating electrical energy.
Dr. Inoue explained that MFC systems operated continuously for more than three years were able to maintain stable and high performance. During that period, an enrichment of specific microorganisms occurred, particularly methanogens and sulfate-reducing bacteria, which play a vital role in maintaining system stability. The presence of these two microbial groups not only increases the efficiency of organic compound degradation in liquid waste but also strengthens the system’s capacity to produce clean energy.

The findings highlight that the sustainability of MFCs is highly dependent on the naturally formed balance of microbial communities. By understanding microbial population dynamics, this technology can be further developed to address waste management challenges while supporting the transition toward renewable energy. Dr. Inoue’s presentation showed how research from Miyazaki University can make a tangible contribution to the development of global biotechnology.
Dr. Inoue’s research makes a real contribution to the achievement of Sustainable Development Goals (SDGs), covering SDG 3: Good Health and Well-being, SDG 4: Quality Education, SDG 6: Clean Water and Sanitation, SDG 7: Affordable and Clean Energy, SDG 9: Industry, Innovation and Infrastructure, SDG 12: Responsible Consumption and Production, and SDG 13: Climate Action.
Writer: Beny Nabila Happy Fauziah
Editor: Tantriani
Documentation: Faperta UGM Media Unit