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Peer-reviewed papers: 41 (2023.05.18)

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  1. Best presenter's award in International conference, Iweh, N. S., M. Koyama, S. Akizuki, T. Toda. "Enhancing anaerobic digestibility of aquatic plant biomass by wet-solid states serial digestion process – in comparison with conventional single stage digestion". The 7th International Water Association (IWA)―Asian Pacific Regional Group (ASPIRE) Conference, Kuala Lumpur, Malaysia, September 2017, Poster number: 035. 

  2. Best presenter's award in International conference,  Koyama, M., S. Yamamoto, K. Ishikawa, S. Ban, T. Toda. "Effect of dissolved lignin on anaerobic digestion of alkali pre-treated aquatic macrophyte: inhibition and acclimatization". The 13th IWA Leading Edge Conference on Water and Wastewater Technologies, Jerez de la Frontera, Spain, June 2016, Poster number: 39.

  3. Awarded JSPS Research Fellowship, April 2015―March 2016 (DC2), April 2016-March 2017 (PD). 研究課題名:「高含水率植物バイオマスのメタン発酵におけるリグニンの回収と利用」

Acquired research funds

  1. Japan Society for the Promotion of Science Grants-in-Aid for Young Scientists. Elucidation of the response and adaptability of microorganisms to changes in organic matter load in methane fermentation (2021-2020, research expenses 4.68 million yen, representative)

  2. Japan Society for the Promotion of Science Grants-in-Aid for Scientific Research Fostering International Collaborative Research (B). 14.5 million yen in total), share)

  3. Japan Society for the Promotion of Science Grants-in-Aid for Young Scientists. A novel methane fermentation that achieves both methane production and ammonia stripping in the same tank (2019-2020, research expenses of 3.9 million yen, representative)

  4. Sumitomo Foundation Environmental Research Grant. Development of a stable methane fermentation process that precisely controls the rate of acid production by temperature manipulation (FY2018-FY2019, research expenses 2.5 million yen, representative)

  5. Japan International Cooperation Agency/Japan Science and Technology Agency International Science and Technology Joint Research Promotion Project/International Science and Technology Cooperation Program for Addressing Global Issues. 3rd year, research expenses 26 million yen (total 163.32 million yen))

  6. Japan Society for the Promotion of Science Grant-in-Aid for Research Fellows. Removal and recovery of lignin in methane fermentation of plant biomass with high water content (FY2015-2016, research expenses: 2.17 million yen, representative)


  1. Shuhei Tomo, Seiko Kimura, Tatsuki Toda, Shinichi Akizuki, Mitsuhiko Koyama. Cultivation method of microalgae using methane fermentation digestive juice of aquatic plants. Patent application 2016-200156

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