Mechanisms for enhanced biomass production of microalgae by microalgae growth-promoting bacteria (MGPB) and its application

• Project/Area Number: 15K12243
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Environmental conscious materials and recycle
• Research Institution: University of Yamanashi
• Principal Investigator: TOYAMA Tadashi 山梨大学, 総合研究部, 准教授 (60431392)
• Project Period (FY): 2015-04-01 – 2017-03-31
• Project Status: Completed (Fiscal Year 2016)
• Budget Amount: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000); Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000); Fiscal Year 2015: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
• Keywords: グリーンプロダクション / 微細藻類バイオマス / 光合成 / バイオマス合成

Outline of Final Research Achievements

Microalgae Growth-Promoting Bacteria (MGPB) were isolated from some microalgae including Chlorella vulgaris and Euglena gracilis. Some strains of isolated MGPB increased microalgae growth rate more than 3 times. Some MGPB strains also increased chlorophyll synthesis rate and photosynthesis rate of microalgae more than 2 times. Nitrogen-containing compound produced by MGPB might be involved in these microalgae growth promotion. We demonstrated that the use of MGPB in microalgae culture reactor can improve the efficiency of microalgae biomass and oil productions.

Research Products

• [Presentation] 排水を用いた Euglena gracilis バイオマス生産と微細藻類成長促進細菌によるその効率化 (2017)
  • Author(s): 花岡翼，中島秀鷹，糟谷まり，遠山忠
  • Organizer: 第51回日本水環境学会年会
  • Place of Presentation: 熊本大学, 熊本市
  • Year and Date: 2017-03-15
• [Presentation] 排水中の細菌群集が微細藻類の成長に及ぼす影響の評価 (2017)
  • Author(s): 糟谷まり，遠山忠，森一博，清和成
  • Organizer: 第51回日本水環境学会年会
  • Place of Presentation: 熊本大学, 熊本市
  • Year and Date: 2017-03-15
• [Presentation] Enhanced biomass production of Euglena gracilis by microalgae growth-promoting bacteria. (2016)
  • Author(s): Tadashi Toyama, Naoto Kobayashi, Tsubasa Hanaoka, Yasuhiro Tanaka, Kazuhiro Mori
  • Organizer: Water and Environment Technology Conference 2016
  • Place of Presentation: Chuo University, Tokyo, Japan
  • Year and Date: 2016-08-27
  • Int'l Joint Research
• [Presentation] 微細藻類の光合成とバイオマス合成を促進する細菌の分離とその応用 (2016)
  • Author(s): 遠山忠、小林直人、森一博
  • Organizer: 第50回 日本水環境学会年会
  • Place of Presentation: 徳島市、アスティとくしま
  • Year and Date: 2016-03-16
• [Remarks] 山梨大学 環境保全研究室 森・遠山研究室
  • URL: http://www.ccn.yamanashi.ac.jp/~5lab/index.html
• [Remarks] 山梨大学 環境保全研究室 森・遠山研究室
  • URL: http://www.ccn.yamanashi.ac.jp/~5lab/mori_toyama/index.html