Studies on methane fermentation in coastal area

2013 Fiscal Year Final Research Report

• Project/Area Number: 22380179
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Boundary agriculture
• Research Institution: Kyoto University
• Principal Investigator: SAWAYAMA Shigeki 京都大学, (連合)農学研究科(研究院), 教授 (80357178)
• Co-Investigator(Kenkyū-buntansha): SAKO Yoshihiko 京都大学, 大学院・農学研究科, 教授 (60153970)
• Co-Investigator(Renkei-kenkyūsha): TSUKAHARA Kenichiro (独)産業技術総合研究所, バイオマス研究センター, 研究員 (70357507)
• Project Period (FY): 2010-04-01 – 2014-03-31
• Keywords: メタン / 地球温暖化 / 水質汚染

Research Abstract

While methane production was not observed in the control Wakasa bay sediment (Japan) without substrate addition, methane production was drastically enhanced by adding trimethylamine (TMA), significantly increased by adding dimethyl sulfide (DMS) and slightly increased by acetate. After incubation with TMA, relative abundance of Methanococcoides-affiliated clones was drastically increased. Methylotrophic methanogens might have an important role for methane production cycle in coastal marine sediments. Following the addition of 11 different types of microalgal cells to coastal marine Maizuru Bay sediment, the highest methane production was recognized from sediment containing the dinoflagellate Heterocapsa circularisquama. These results indicate that the Maizuru Bay coastal marine sediment has potential for methanogenic activity and that microalgal cell addition to coastal sediments leads to methane fermentation.

Research Products

• [Presentation] 由良川河口域におけるメタン生成菌の検出
  • Author(s): 石野亮太, 上野正博, 鰺坂哲朗, 澤山 茂樹
  • Organizer: 第27回日本微生物生態学会大会
• [Presentation] Anaerobic treatiment of ethanol stillage from cellulosic fecdstocks under mesophilic and thermophilic conditions
  • Author(s): Tsukahara, K., Sawayama, S
  • Organizer: International Symposium on Alcohol Fuels
• [Presentation] Activity and diversity of methanogens in a coastal marine sediment
  • Author(s): Ishino, R., Ishii, K. Ueno, M., Ajisaka, T., and Sawayama, S.
  • Organizer: Wakasa Bay, Japan. The 9th Asia-Pacific Marine Biotechnology Conference
• [Presentation] メタン発酵とバイオガスの利用について
  • Author(s): 澤山茂樹
  • Organizer: 産業機械工業会環境ビジネス委員会
• [Presentation] 微細藻類ブルームがメタン生成に及ぼす影響
  • Author(s): 石野亮太, 石井健一郎, 上野正博, 鰺坂哲朗, 澤山茂樹
  • Organizer: 平成24年度日本水産学会秋季大会
• [Presentation] 海底泥への微細藻類バイオマス添加に伴うメタン生成について
  • Author(s): 今井理人, 石井健一郎, 上野正博, 澤 山茂樹
  • Organizer: 平成25年度日本水産学会近畿支部後期例会
• [Remarks] ホームページ
  • URL: http://www.kanbi.marine.kais.kyoto-u.ac.jp/kenkyunaiyou.html
• [Remarks] 澤山茂樹, バイオガスとメタン生成,BTJ/GreenInnovation メール,Vol.193, 2011/7/21