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Associate Professor
Institute of Applied Biochemistry
University of Tsukuba, Japan
Institute of Applied Biochemistry, University of Tsukuba, 1 - 1 - 1 Tennodai Tsukuba, Ibaraki ken 305-8572, Japan

Phone: +81-298-53-6646
FAX: +81-298-53-4605
Email: jogbonna@sakura.cc.tsukuba.ac.jp
URL:

B.S. University of Jos, Nigeria 1982
M.S. Yamanashi University, Japan 1988
Ph.D. University of Tsukuba, Japan 1991

Picture of James Ogbonna
James Ogbonna

Description of Research
I am working on bioprocess design and optimization for cultivation of microbial and photosynthetic cells as well as on environmental biotechnology. My current research topics include bioreactor/photobioreactor design and scale up, solar light collection and utilization in photobioreactors, mitigation of carbon dioxide, nitrogen and sulphur oxides, production of renewable energy sources (microbial oils, ethanol and hydrogen), production of various metabolites (mainly antioxidants and bioinsecticides) by photosynthetic, bacteria and fungi cells, wastewater treatment and immobilized cell technology.

Recent Papers or Publications
Ogbonna, J. C., Soejima, T., Tanaka, H.: An integerated solar and artificial light system for internal illumination of photobioreactors. J. Biotechnol. 70, 289-297 (1999).

Ogbonna, J. C. and Tanaka, H. Cyclic autotrophic/heterotrophic cultivation of photosynthetic cells - A method of achieving continuous cell growth under light/dark cycles. Biores. Technol., 65, 65-72 (1998)

Ogbonna, J. C., Shota Tomiyama and Tanaka, H. Heterotrophic cultivation of Euglena gracilis Z for efficient production of Ix-tocopherol. J. Appl. Phycol. 10, 67-74 (1998)

Ogbonna J. C., Tomiyama S., Liu, Y. C. and Tanaka, H.:Efficient production of ethanol by cells immobilized in loffa (Luffa cylindrica) sponge. J. Ferment. Bioeng.84, 271 - 274(1997)

Special Honors or Awards
I am interested in bioprocess (Bioindustries) development and technology transfer to developing countries.

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