Removal and conversion of selenium and tellurium oxyaninos into their elemental forms by deep-see micbrobes
Project/Area Number |
24580482
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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 |
Research Field |
Boundary agriculture
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Research Institution | Prefectural University of Hiroshima |
Principal Investigator |
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Project Period (FY) |
2012-04-01 – 2015-03-31
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Project Status |
Completed (Fiscal Year 2014)
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Budget Amount *help |
¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2014: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2013: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2012: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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Keywords | 深海底生物資源 / 元素回収 / レアエレメント / 海洋微生物 / カルコゲン元素 / 単体元素 / 生物セレン回収 / 微生物 / 分子系統解析 / セレン同化代謝 |
Outline of Final Research Achievements |
Selenium and tellurium have the rarity as rare element, and the effective method for recovery and recycling of selenium and tellurium under mild conditions, has been required. As selenium (Tellurium) -oxyanion which is one of the oxide form of Se (Te) is toxic to various organisms, the simple and practical technique for detoxification of Se (Te) -oxyanions is necessary. In this study, we searched for and isolated microbes capable of reducing Se (Te)-oxyanions into elemental Se (Te) nano-spheres from deep-sea sediments. Furthermore, the biochemical and culture properties, phylogenetic analysis, and the possibility of the nano-sphere formation were investigated. Formation of nano-sphere which consist of almost pure Se (Te) due to deep-sea isolates that were identified as Shewanella spp. was confirmed by the TEM observation and the EDS analysis. In addition, it was suggested that the isolates were also available for the synthesis of fine particles of rare elements such as silver.
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Report
(4 results)
Research Products
(24 results)
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[Presentation] Selenium Recovery and Conversion by a Filamentous Fungus, Aspergillus oryzae Strain RIB40, 2nd International Conference Sustainable Agriculture, Food, and Energy2014
Author(s)
Hiromi Kimura, Toshi-Hide Arima, Yoshiko Okamura, Takashi Oku and Toshifumi Sakaguchi
Organizer
2nd International Conference Sustainable Agriculture, Food, and Energy, SAFE2014
Place of Presentation
Bari, Indoneshia
Year and Date
2014-09-17 – 2014-09-19
Related Report
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[Presentation] Selenium reduction by a marine microbe, Acidovorax sp. strain SSe6-1 newly isolated from the intracellular water of planktonic tunicate (salpa) bodies that were collected in the offcoast of Enshu, Pacific Ocean2014
Author(s)
Toshifumi Sakaguchi, Tatsuya Hiraoka, Hiromi Kimura,Yukari Kato, Akira Ishikawa, Kazunori Taguchi, Hideaki Miyashita
Organizer
The 10th Asia-Pacific Marine Biotechnology Conference
Place of Presentation
Academia Sinica, Taipei, Taiwan
Year and Date
2014-05-04 – 2014-05-08
Related Report
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