Development of a high-rate biofuel production system using a newly isolated alga, Chlorococcum sp.
Project/Area Number |
20K12276
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Review Section |
Basic Section 64050:Sound material-cycle social systems-related
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Research Institution | Hiroshima National College of Maritime Technology |
Principal Investigator |
Ohnuma Mio 広島商船高等専門学校, その他部局等, 准教授 (70594076)
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Co-Investigator(Kenkyū-buntansha) |
三角 修己 山口大学, 大学院創成科学研究科, 教授 (90583625)
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Project Period (FY) |
2020-04-01 – 2023-03-31
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Project Status |
Completed (Fiscal Year 2022)
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Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2021: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2020: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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Keywords | 微細藻類 / バイオ燃料 / 細胞培養 / 油脂生産 / 野外培養 / 細胞増殖 / Chlorococcum sp / 次世代再生可能エネルギー / バイオディーゼル / Chlorococcum sp. / 海上培養 / 藻類バイオ燃料 / 藻類バイオマス燃料 / 油滴 |
Outline of Research at the Start |
本研究では、次世代再生可能エネルギーとして期待されているバイオ燃料の普及・発展へ向けて、新規に単離された増殖能、油脂生産効率の高い単細胞藻類Chlorococcum sp. Nibukawa HS-Aを用いて、高率バイオ燃料生産系の構築を目指す。
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Outline of Final Research Achievements |
A field culture system was developed to obtain algal biofuel from the green alga Chlorococcum sp., which has high oil production and cell proliferation capacity. A culture medium developed in a previous study that allows high oil production and cell proliferation was used. Improved pre-culture methods for field culture have made maintaining cells at approximately twice their concentration possible before the improvements were made. We developed an open culture system (100 L) and a closed sea culture system (10 L) as field culture systems. Since Chlorococcum sp. has cell-sedimentation properties, sedimentation rates were measured. The result indicated that spontaneous sedimentation can be used for primary enrichment during cell harvest.
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Academic Significance and Societal Importance of the Research Achievements |
藻類バイオ燃料を社会実装化するには、低コスト野外培養系の構築が必須である。本研究で、Chlorococcum sp.は、油脂生産能・増殖能が高いだけでなく、細胞沈降性があることが明らかになった。一般に、微細藻類の細胞を収穫するときは、遠心分離や濾過などコストの高い方法が取られることが多いが、第一段階の濃縮を沈殿によって行うことにより、大幅なコストカットが可能と考えられる。本藻を用いて野外大型培養のさらなる改良を行うことは、藻類バイオ燃料の社会実装化に貢献すると考えられる。
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Report
(4 results)
Research Products
(17 results)
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[Journal Article] ESCRT machinery mediates cytokinetic abscission in the unicellular red alga Cyanidioschyzon merolae.2020
Author(s)
Yagisawa F., Fujiwara T., Takemura T., Kobayashi Y., Sumiya N., Miyagishima S. Y., Nakamura S., Imoto Y., Misumi O., Tanaka K., Kuroiwa H., Kuroiwa T.
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Journal Title
Frontiers in Cell and Developmental Biology
Volume: 8
Pages: 169-169
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Presentation] 愛媛県鈍川温泉由来高油脂生産藻類の野外大量培養系構築の試み2022
Author(s)
西浦周, 坂本岳人, 宮前俊彦, 奥田悠希, 八木沢芙美, 廣岡俊亮, 藤原崇之, 宮城島進也, 黒岩晴子, 黒岩常祥, 眞田宣明, 三角修己, 月坂明広, 広兼元, 岸 拓真, 大沼みお
Organizer
日本植物学会第 86 回大会
Related Report
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