TAKAHISA TAJIMA

Last Updated :2025/04/03

Affiliations, Positions
Graduate School of Integrated Sciences for Life, Associate Professor
E-mail
ttajimahiroshima-u.ac.jp
Other Contact Details
1-3-１，Kagamiyama，Higashi-Hiroshima, Japan
TEL : (+81)82-424-7871 FAX : (+81)82-424-7047
Self-introduction
I am interested in biological conversion using various kinds of enzymes. We have developed psychrophile-based simple biocatalysts (PSCats) to conduct efficient conversion processes. PSCats can produce the various compounds with high yields only by their biosynthetic thermostable enzymes, which are heterologously expressed in psychrophilic cells whose psychrophilic metabolism is suppressed by heat treatment.

Basic Information

Major Professional Backgrounds

  • 2004/04/01, 2007/03/31, National Institute of Technology and Evaluation, Department of Biotechnology, Researcher
  • 2007/04/01, 2009/09/30, Research Institute of Innovative Technology for the Earth, Molecular Microbiology and Biotechnology group, Researcher
  • 2009/10/01, 2019/03/31, Hiroshima University, Graduate School of AdVanced Sciences of Matter, Assistant professor
  • 2019/04/01, 2021/03/31, Hiroshima University, Graduate School of Integrated Sciences for Life, Assistant Professor
  • 2021/04/01, Hiroshima University, Graduate School of Integrated Sciences for Life, Associate Professor

Educational Backgrounds

  • Hiroshima University, Graduate School of Advanced Sciences of Matter, Department of Molecular Biotechnology, Japan, 2001/04, 2004/03

Academic Degrees

  • Doctor of Philosophy in Engineering, Hiroshima University
  • Master of Engineering, Hiroshima University

Educational Activity

  • [Bachelor Degree Program] School of Engineering : Cluster 3(Applied Chemistry, Biotechnology and Chemical Engineering) : Program of Biotechnology
  • [Master's Program] Graduate School of Integrated Sciences for Life : Division of Integrated Sciences for Life : Program of Biotechnology
  • [Doctoral Program] Graduate School of Integrated Sciences for Life : Division of Integrated Sciences for Life : Program of Biotechnology

In Charge of Primary Major Programs

  • Biotechnology

Research Fields

  • Engineering;Process / Chemical engineering;Biofunction / Bioprocess
  • Agricultural sciences;Agricultural chemistry;Applied microbiology

Research Keywords

  • Bioconversion, Simple Biocatalyst, Psychrophile

Affiliated Academic Societies

  • The Society for Biotechnology, Japan
    Related URL
  • Japan Society for Bioscience, Biotechnology, and Agrochemistry
    Related URL
  • Japan Society for Environmental Biotechnology
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Educational Activity

Course in Charge

  1. 2025, Liberal Arts Education Program1, 2Term, Introduction to Applied Chemistry, Chemical Engineering,and Biotechnology
  2. 2025, Undergraduate Education, First Semester, Training of Biotechnology I
  3. 2025, Undergraduate Education, 3Term, Molecular Bioinformatics
  4. 2025, Undergraduate Education, Year, Graduation Thesis
  5. 2025, Graduate Education (Doctoral Program) , 1Term, Research Plans in Life Science
  6. 2025, Graduate Education (Master's Program) , 4Term, Environmental Biotechnology B
  7. 2025, Graduate Education (Master's Program) , Academic Year, Seminar in Biotechnology
  8. 2025, Graduate Education (Master's Program) , 1Term, Exercises in Biotechnology A
  9. 2025, Graduate Education (Master's Program) , 2Term, Exercises in Biotechnology A
  10. 2025, Graduate Education (Master's Program) , 3Term, Exercises in Biotechnology B
  11. 2025, Graduate Education (Master's Program) , 4Term, Exercises in Biotechnology B
  12. 2025, Graduate Education (Master's Program) , Academic Year, Research for Academic Degree Dissertation in Biotechnology
  13. 2025, Graduate Education (Doctoral Program) , Academic Year, Research for Academic Degree Dissertation in Integrated Life Sciences

Research Activities

Academic Papers

  1. A novel salt- and organic solvent-tolerant phosphite dehydrogenase from Cyanothece sp. ATCC 51142, FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY, 11, 20230818
    Link to Paper Search Results by DOI
  2. Bioaugmentation with marine sediment-derived microbial consortia in mesophilic anaerobic digestion for enhancing methane production under ammonium or salinity stress, BIORESOURCE TECHNOLOGY, 376, 202305
    Link to Paper Search Results by DOI
  3. Unexpectedly high thermostability of an NADP-dependent malic enzyme from a psychrophilic bacterium, Shewanella livingstonensis Ac10, JOURNAL OF BIOSCIENCE AND BIOENGINEERING, 132(5), 445-450, 20211101
    Link to Paper Search Results by DOI
  4. Chemotactic disruption as a method to control bacterial wilt caused by Ralstonia pseudosolanacearum, BIOSCIENCE BIOTECHNOLOGY AND BIOCHEMISTRY, 85(3), 697-702, 20210224
    Link to Paper Search Results by DOI
  5. Psychrophile-based simple biocatalysts for effective coproduction of 3-hydroxypropionic acid and 1,3-propanediol, BIOSCIENCE BIOTECHNOLOGY AND BIOCHEMISTRY, 85(3), 728-738, 20210224
    Link to Paper Search Results by DOI
  6. Efficient production of 1,3-propanediol by psychrophile-based simple biocatalysts in Shewanella livingstonensis Ac10 and Shewanella frigidimarina DSM 12253, Journal of Biotechnology, 323, 293-301, 202011
    Link to Paper Search Results by DOI
  7. Characterization of methyl-accepting chemotaxis proteins (MCPs) for amino acids in plant-growth-promoting rhizobacterium Pseudomonas protegens CHA0 and enhancement of amino acid chemotaxis by MCP genes overexpression, Bioscience, Biotechnology, and Biochemistry, 202005
    Link to Paper Search Results by DOI
  8. Accelerating itaconic acid production by increasing membrane permeability of whole-cell biocatalyst based on a psychrophilic bacterium Shewanella livingstonensis Ac10, JOURNAL OF BIOTECHNOLOGY, 312, 56-62, 20200320
    Link to Paper Search Results by DOI
  9. Ethanol yield and sugar usability in thermophilic ethanol production from lignocellulose hydrolysate by genetically engineered Moorella thermoacetica, JOURNAL OF BIOSCIENCE AND BIOENGINEERING, 129(2), 160-164, 202002
    Link to Paper Search Results by DOI
  10. Two citrate chemoreceptors involved in chemotaxis to citrate and/or citrate-metal complexes in Ralstonia pseudosolanacearum, JOURNAL OF BIOSCIENCE AND BIOENGINEERING, 127(2), 169-175, 201902
    Link to Paper Search Results by DOI
  11. Isolation of High Carotenoid-producing Aurantiochytrium sp Mutants and Improvement of Astaxanthin Productivity Using Metabolic Information, JOURNAL OF OLEO SCIENCE, 67(5), 571-578, 201805
    Link to Paper Search Results by DOI
  12. Efficient conversion of mannitol derived from brown seaweed to fructose for fermentation with a thraustochytrid, JOURNAL OF BIOSCIENCE AND BIOENGINEERING, 125(2), 180-184, 201802
    Link to Paper Search Results by DOI
  13. Thermophilic ethanol fermentation from lignocellulose hydrolysate by genetically engineered Moorella thermoacetica, BIORESOURCE TECHNOLOGY, 245, 1393-1399, 201712
    Link to Paper Search Results by DOI
  14. Improved methanization and microbial diversity during batch mode cultivation with repetition of substrate addition using defined organic matter and marine sediment inoculum at seawater salinity, BIORESOURCE TECHNOLOGY, 245, 833-840, 201712
    Link to Paper Search Results by DOI
  15. Negative chemotaxis of Ralstonia pseudosolanacearum to maleate and identification of the maleate chemosensory protein, JOURNAL OF BIOSCIENCE AND BIOENGINEERING, 124(6), 647-652, 201712
    Link to Paper Search Results by DOI
  16. Involvement of many chemotaxis sensors in negative chemotaxis to ethanol in Ralstonia pseudosolanacearum Ps29, MICROBIOLOGY-SGM, 163(12), 1880-1889, 201712
    Link to Paper Search Results by DOI
  17. Quantitative In Situ Mass Spectrometry Analysis of Mannitol Decomposition Products under Hydrothermal Conditions, ENERGY & FUELS, 31(10), 10866-10873, 201710
    Link to Paper Search Results by DOI
  18. Real-Time Mass Spectrometric Analysis of Hydrothermal Reaction Products, INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 56(36), 9993-9998, 20170913
    Link to Paper Search Results by DOI
  19. Identification of boric acid as a novel chemoattractant and elucidation of its chemoreceptor in Ralstonia pseudosolanacearum Ps29, SCIENTIFIC REPORTS, 7, 20170817
    Link to Paper Search Results by DOI
  20. In situ mass spectrometry of glucose decomposition under hydrothermal reactions, KOREAN JOURNAL OF CHEMICAL ENGINEERING, 34(5), 1524-1530, 201705
    Link to Paper Search Results by DOI
  21. Decomposition kinetics of uronic acids obtained from kelp under hydrothermal condition, JOURNAL OF THE ENERGY INSTITUTE, 90(2), 185-190, 201704
    Link to Paper Search Results by DOI
  22. Homolactic Acid Fermentation by the Genetically Engineered Thermophilic Homoacetogen Moorella thermoacetica ATCC 39073, APPLIED AND ENVIRONMENTAL MICROBIOLOGY, 83(8), 201704
    Link to Paper Search Results by DOI
  23. In-situ Mass Spectroscopic Analysis of Glucose Decomposition under Hydrothermal Condition: Quantitative Analysis for Reaction Kinetics, JOURNAL OF THE JAPAN PETROLEUM INSTITUTE, 60(2), 101-109, 201703
    Link to Paper Search Results by DOI
  24. Identification and characterization of chemosensors for D-malate, unnatural enantiomer of malate, in Ralstonia pseudosolanacearum, MICROBIOLOGY-SGM, 163(2), 233-242, 201702
    Link to Paper Search Results by DOI
  25. Kinetics of Sorbitol Decomposition under Hydrothermal Condition, JOURNAL OF THE JAPAN PETROLEUM INSTITUTE, 59(4), 149-154, 201607
    Link to Paper Search Results by DOI
  26. Decomposition Kinetics of Mannose, Its Sugar Alcohol, and Its Uronic Acid under Hydrothermal Condition, JOURNAL OF CHEMICAL ENGINEERING OF JAPAN, 49(7), 663-667, 201607
    Link to Paper Search Results by DOI
  27. Isolation and characterization of bacterium producing lipid from short-chain fatty acids, BIORESOURCE TECHNOLOGY, 201, 215-221, 201602
    Link to Paper Search Results by DOI
  28. High-rate Fermentation of Acetate to Methane under Saline Condition by Aceticlastic Methanogens Immobilized in Marine Sediment, Journal of the Japan Petroleum Institute, 59(1), 9-15, 201602
    Link to Paper Search Results by DOI
  29. Semi-continuous methane production from undiluted brown algae using a halophilic marine microbial community, BIORESOURCE TECHNOLOGY, 200, 616-623, 201601
    Link to Paper Search Results by DOI
  30. Bacterial community structure and predicted alginate metabolic pathway in an alginate-degrading bacterial consortium, Journal of Bioscience and Bioengineering, 121(3), 286-292, 2016
    Link to Paper Search Results by DOI
  31. Determination of mannitol decomposition rate under hydrothermal pretreatment condition, Journal of the Japan Petroleum Institute, 58, 252-255, 20150901
    Link to Paper Search Results by DOI
  32. Improved methane production from brown algae under high salinity by fed-batch acclimation, Bioresource Technology, 187, 275-281, 201507
    Link to Paper Search Results by DOI
  33. Determination of Mannitol Decomposition Rate under Hydrothermal Pretreatment Condition, JOURNAL OF THE JAPAN PETROLEUM INSTITUTE, 58(4), 252-255, 201507
    Link to Paper Search Results by DOI
  34. Construction of CoA-dependent 1-butanol synthetic pathway functions under aerobic conditions in Escherichia coli, Journal of Biotechnology, 204, 25-32, 201506
    Link to Paper Search Results by DOI
  35. Metabolic engineering for improved production of ethanol by Corynebacterium glutamicum, Applied Microbiology and Biotechnology, 99(3), 1165-1172, 2015
    Link to Paper Search Results by DOI
  36. Characterization of a halotolerant acetoclastic methanogen highly enriched from marine sediment and its application in removal of acetate, Journal of Bioscience and Bioengineering, 121(2), 196-202, 2015
    Link to Paper Search Results by DOI
  37. Dysgonomonas alginatilytica sp. nov., a novel alginate-degrading bacterium isolated from microbial consortium, International Journal of Systematic and Evolutionary Microbiology, 65, 3570-3575, 2015
    Link to Paper Search Results by DOI
  38. ★, Efficient aspartic acid production by a psychrophile-based simple biocatalyst, JOURNAL OF INDUSTRIAL MICROBIOLOGY & BIOTECHNOLOGY, 42(10), 1319-1324, 2015
    Link to Paper Search Results by DOI
  39. Identification of the mcpA and mcpM Genes, Encoding Methyl-Accepting Proteins Involved in Amino Acid and L-Malate Chemotaxis, and Involvement of McpM-Mediated Chemotaxis in Plant Infection by Ralstonia pseudosolanacearum (Formerly Ralstonia solanacearum Phylotypes I and III), APPLIED AND ENVIRONMENTAL MICROBIOLOGY, 81(21), 7420-7430, 2015
    Link to Paper Search Results by DOI
  40. Effect of salinity on methanogenic propionate degradation by acclimated marine sediment-derived culture, Applied Biochemistry and Biotechnology, 177(7), 1541-1552, 2015
    Link to Paper Search Results by DOI
  41. Identification of Pseudomonas fluorescens Chemotaxis Sensory Proteins for Malate, Succinate, and Fumarate, and Their Involvement in Root Colonization, Microbes and Environments, 29(4), 413-419, 20141219
    Link to Paper Search Results by DOI
  42. Value-added lipid production from brown seaweed biomass by two-stage fermentation using acetic acid bacterium and thraustochytrid, Applied Microbiology and Biotechnology, 98(22), 9207-9216, 201411
    Link to Paper Search Results by DOI
  43. Evaluation of marine sediments as microbial sources for methane production from brown algae under high salinity, Bioresource Technology, 169, 362-366, 201410
    Link to Paper Search Results by DOI
  44. Enhancement of (R)-1,3-butanediol production by engineered Escherichia coli using a bioreactor system with strict regulation of overall oxygen transfer coefficient and pH, Bioscience Biotechnology and Biochemistry, 78(4), 695-700, 201404
    Link to Paper Search Results by DOI
  45. Degradation of chloroanilines by toluene dioxygenase from Pseudomonas putida T57, Journal of Bioscience and Bioengineering, 117(3), 292-297, 201403
    Link to Paper Search Results by DOI
  46. Enhanced 3-methylcatechol production by Pseudomonas putida TODE1 in a two-phase biotransformation system, Journal of General and Applied Microbiology, 60(5), 183-190, 2014
    Link to Paper Search Results by DOI
  47. Behavior of Organics in Kelp during Hydrothermal Pretreatment: Fundamental Characteristics and Effect of Salt, Journal of the Japan Institute of Energy, 93(5), 531-535, 2014
    Link to Paper Search Results by DOI
  48. Identification of CtpL as a Chromosomally Encoded Chemoreceptor for 4-Chloroaniline and Catechol in Pseudomonas aeruginosa PAO1, Applied and Environmental Microbiology, 79(23), 7241-7248, 201312
    Link to Paper Search Results by DOI
  49. Engineering of a functional thermostable kanamycin resistance marker for use in Moorella thermoacetica ATCC39073, FEMS Microbiology Letters, 343(1), 8-12, 201306
    Link to Paper Search Results by DOI
  50. Improvement of (R)-1,3-butanediol production by engineered Escherichia coli, Journal of Bioscience and Bioengineering, 115(5), 475-480, 201305
    Link to Paper Search Results by DOI
  51. Development of genetic transformation and heterologous expression system in carboxydotrophic thermophilic acetogen Moorella thermoacetica, Journal of Bioscience and Bioengineering, 115(4), 347-352, 201304
    Link to Paper Search Results by DOI
  52. ★, Construction of a simple biocatalyst using psychrophilic bacterial cells and its application for efficient 3-hydroxypropionaldehyde production from glycerol, AMB Express, 3(1), 69, 2013
    Link to Paper Search Results by DOI
  53. Identification of Chemotaxis Sensory Proteins for Amino Acids in Pseudomonas fluorescens Pf0-1 and Their Involvement in Chemotaxis to Tomato Root Exudate and Root Colonization, Microbes and Environments, 27(4), 462-469, 20121207
    Link to Paper Search Results by DOI
  54. Construction and application of an Escherichia coli bioreporter for aniline and chloroaniline detection, Journal of Industrial Microbiology & Biotechnology, 39(12), 1801-1810, 201212
    Link to Paper Search Results by DOI
  55. Development of a genetic transformation and heterologous expression system for the carboxydotrophic thermophilic acetogen Moorella thermoacetica, Proceedings of the First Joint Conference in Renewable Energy and Nanotechnology, -(-), 198-201, 20121101
  56. Ethanol production from brown algae with alginate-degrading microbial consortia, Proceedings of 19th Regional Symposium of Chemical Engineering, -(-), A-02-1-4, 20121101
  57. ★, Isolation and characterization of tetrahydrofuran-degrading Rhodococcus aetherivorans strain M8, Process Biochemistry, 47(11), 1665-1669, 201211
    Link to Paper Search Results by DOI
  58. Characterization of Acetonitrile-Tolerant Marine Bacterium Exiguobacterium sp SBH81 and Its Tolerance Mechanism, Microbes and Environments, 27(1), 30-35, 20120316
    Link to Paper Search Results by DOI
  59. Identification and characterization of methyl-accepting chmotaxis proteins for trichloroethylene in Pseudomonas putida F1, Journal of Environmental Biotechnology, 11(41276), 83-87, 20111201
  60. Genome sequence of a mesophilic hydrogenotrophic methanogen Methanocella paludicola, the first cultivated representative of the order Methanocellales, ProS One, 6(7), e22898, 20110701
    Link to Paper Search Results by DOI
  61. Development of butanol-tolerant Bacillus subtilis strain GRSW2-B1 as a potential bioproduction host., AMB Express, 1, 10, 20110501
    Link to Paper Search Results by DOI
  62. Biodegradation of tetrahydrofuran in Rhodococcus ruber, Journal of Biotechnology, 150, S215-S215, 201011
    Link to Paper Search Results by DOI
  63. Negative chemotaxis to trichloroethylene and its chemosensory protein in Pseudomonas putida F1, JOURNAL OF BIOTECHNOLOGY, 150, S218-S218, 201011
    Link to Paper Search Results by DOI
  64. Efficient acetate production from formate by Moorella sp HUC-221, JOURNAL OF BIOTECHNOLOGY, 150, S359-S360, 201011
    Link to Paper Search Results by DOI
  65. Revisiting the genome sequence of Aeropyrum pernix K1, Proceedings of ISEA2005, 2005(0), 316-316, 2007
  66. Sequence analysis of three plasmids harboured in Rhodococcus erythropolis strain PR4, Environmental Microbiology, 8(2), 334-346, 2006
    Link to Paper Search Results by DOI
  67. ★, Mutants of the nematode Caenorhabditis elegans that are defective specifically in their attraction to cycloheximide, Journal of Bioscience and Bioengineering, 96(2), 149-153, 200308
    Link to Paper Search Results by DOI
  68. Behavioral responses of the ciliated protozoan Paramecium caudatum to 2,4-dichlorophenoxyacetic acid and its analogues, Journal of Bioscience and Bioengineering, 93(4), 416-420, 200204
    Link to Paper Search Results by DOI
  69. ★, Chemotaxis of the nematode Caenorhabditis elegans toward cycloheximide and quinine hydrochloride, Journal of Bioscience and Bioengineering, 91(3), 322-324, 200103
    Link to Paper Search Results by DOI

Invited Lecture, Oral Presentation, Poster Presentation

  1. Construction of biocatalyst for industrial application, Takahisa Tajima, Akiko Hida, Junichi Kato, The 29th Symposium of Young Asian Biological Engineers' Community, YABEC2024, 2024/10/18, Without Invitation, English
  2. Suppression of enzyme leakage caused by heat treatment of psychrophile-based simple biocatalysts, Chie Son, Kota Anada, Takahisa Tajima, Akiko Hida, Junichi Kato, The 8th International Symposium on Fuels and Energy, ISFE2024, 2024/07/02, Without Invitation, English
  3. Effects of heat treatment on the psychrophile-based simple biocatalyst, Takahisa Tajima, Kota Anada, Akiko Hida, Junichi Kato, The 16th Asian Congress on Biotechnology (ACB2023), 2023/10/16, Without Invitation, English
  4. A salt and an organic solvent-tolerant phosphite dehydrogenase for the nicotinamide cofactor regeneration under non-standard reaction condition, Gamal Nasser Abdel-Hady, Takahisa Tajima, Takeshi Ikeda, Takenori Ishida, Hisakage Funabashi, Akio Kuroda, Ryuichi Hirota, The 75th Annual Meeting of the Society of Biotechnology of Japan, 2023/09/03, Without Invitation, English
  5. Bioconversion by Psychrophile-Based Simple Biocatalysts, Takahisa Tajima, Kota Anada, Akiko Hida, Junichi Kato, The 28th Symposium of Young Asian Biological Engineers' Community, YABEC2023, 2023/07/13, Without Invitation, English
  6. Effects of heat treatment on cell structure and enzyme retention of psychrophile-based simple biocatalyst (Excellent Presentation Award), Kota Anada, Takahisa Tajima, Akiko Hida, Junichi Kato, The 7th International Symposium on Fuels and Energy, ISFE2023, 2023/07/03, Without Invitation, English
  7. Identification and characterization of chemosensors for aspartic acid and glutamic acid in Ralstonia solanacearum, Asmaa Ali Ahmed, Akiko Hida, Takahisa Tajima, Junichi Kato, Annual meeting of Japan Society for environmental Biotechnology, 2023/06/08, Without Invitation, English
  8. Identification and characterization of chemosensors for aspartic acid in Ralstonia pseudosolanacearum Ps29, Asmaa Ali Ahmed, Akiko Hida, Takahisa Tajima, Junichi Kato, Japan Society for Bioscience, Biotechnology, and Agrochemistry (JSBBA) 2023 Annual Meetings, 2023/03/16, Without Invitation, English
  9. A novel salt-resistant and an organic solvent-tolerant phosphite dehydrogenase cloned from Cyanothece sp. 51142, Gamal Nasser Abdel-Haby, Takahisa Tajima, Takeshi Ikeda, Takenori Ishida, Hisakage Funabashi, Akio Kuroda, Ryuichi Hirota:, Japan Society for Bioscience, Biotechnology, and Agrochemistry (JSBBA) 2023 Annual Meetings, 2023/03/16, Without Invitation, English
  10. Efficient itaconic acid production by a psychrophile-based whole-cell biocatalyst, Gonglinfeng Luo, Miho Fujino, Sho Nakano, Akiko Hida, Takahisa Tajima, and Junichi Kato, The 26th Symposium of Young Asian Biological Engineers' Community, YABEC 2021, 2021/11/20, Without Invitation, English
  11. Coproduction of 1,3-propanediol and 3-hydroxypropionic acid by psychrophile-based simple biocatalysts, Takahisa Tajima, Mohammad Mojarrad, Keisuke Hirai, Koji Fuki, Akiko Hida and Junichi Kato, The 26th Symposium of Young Asian Biological Engineers' Community, YABEC 2021, 2021/11/19, Without Invitation, English
  12. Analysis of ligand recognition mechanism of chemotactic receptors for amino acids in Pseudomonas protegens CHA0, Nasrullah Harino Al Ghifari, Akiko Hida, Takahisa Tajima, Junichi Kato, 2021/09/25, Without Invitation, English
  13. Unexpectedly high thermostability of an NADP-dependent malic enzyme from a psychrophilic bacterium, Shewanella livingstonensis Ac10, G. Luo, S. Fujii, T. Koda, T. Tajima, Y. Sambongi, A. Hida, J. Kato, 2021/09/02, Without Invitation, English
  14. Cloning, overexpression and purification of a NADP-dependent malic enzyme with unusual thermostability from psychrophile Shewanella livingstonensis Ac10, G. Luo, T. Koda, T. Tajima, S. Fujii, Y. Sambongi, A. Hida, J. Kato, The 56th Chu-Shikoku branch meeting of Japan Society for Bioscience, Biotechnology, and Agrochemistry, 2021/06/12, Without Invitation, Japanese
  15. A new approach for effective co-production of 3-hydroxypropionic acid and 1,3-propanediol, Mojarrad Mohammad, Tajima Takahisa, Hida Akiko, Kato Junichi, 2021/03/19, Without Invitation, Japanese
  16. Effective coproduction of 3-hydroxypropionic acid and 1,3-propanediol by PSCat, Mohammad Mojarrad, Takahisa Tajima, Akiko Hida, Junichi Kato, The fifth Nishi-Nihon branch meeting of Society for Biotechnology, Japan, 2020/11/14, Without Invitation, English
  17. Efficient bioproduction by psychrophile-based simple biocatalyst, Takahisa Tajima, Gonglinfeng Luo, Syo Nakano, Miho Fujino and Junichi Kato, 25th Symposium of Young Asian Biological Engineers’ Community, 2019/11/23, Without Invitation, English, Ewha Womans University, Korea
  18. Itaconic acid production by a marine psychrophilic bacterium, Takahisa Tajima, Luo Gonglinfeng, Junichi Kato, Marine Biotechnology Conference 2019, 2019/09/11, Without Invitation, English, Shizuoka
  19. Isolation of high-producing Aurantiochytrium sp. mutants and improvement of astaxanthin productivity using metabolic information, Kenshi Watanabe，Kim Hazel V. Arafiles，Risa Higashi，Yoshiko Okamura，Takahisa Tajima，Yukihiko Matsumura，Yutaka Nakashimada，Keisuke Matsuyama，Tsunehiro Aki, Marine Biotechnology Conference 2019, 2019/09/11, Without Invitation, English, Shizuoka
  20. Production of Monomers of Polyester by Psychrophile-Based Simple Biocatalysts in Shewanella sp., Mohammad MOJARRAD, Takahisa TAJIMA, Akiko HIDA, Junichi KATO, The 3rd International Symposium on Fuels and Energy, 2019/07/09, Without Invitation, English
  21. Carboxylic acid production by psychrophlie-based simple catalyst, Gonglinfeng Luo, Syo Nakano, Takahisa Tajima, Junichi Kato, The 3rd International Symposium on Fuels and Energy, 2019/07/09, Without Invitation, English
  22. Psychrophile-based Simple Biocatalyst for Efficient Conversion, Takahisa Tajima, Luo Gonglinfeng, Sho Nakano, Akiko Hida, Junichi Kato, The 14th Asian Congress on Biotechnology (ACB2019), 2019/07/04, Without Invitation, English
  23. Bioconversion from biomass to valuable chemicals, Takahisa Tajima, 2nd Joint Workshop of ADSM, Hiroshima University and Balittas, Indonesia for efficient utilization of renewable bioresources, 2019/03/14, Without Invitation, English
  24. Efficient production of biochemicals with simple biocatalyst using psychrophilic microorganisms, Takahisa Tajima, 1st Joint Workshop of ADSM, Hiroshima University and Balittas, Indonesia for efficient utilization of renewable bioresources, 2018/10/22, Without Invitation, English
  25. Simultaneous production of 3-Hydroxypropionic acid and 1,3-Propanediol by psychrophile-based simple biocatalysts in Shewanella sp., Mohammad MOJARRAD, Takahisa Tajima, Junichi Kato, The 2nd International Symposium on Fuels and Energy, 2018/07/03, Without Invitation, English
  26. Carboxylic acid production by psychrophlie-based simple catalyst, Luo GONGLINFENG, Takahisa Tajima, Junichi Kato, The 2nd International Symposium on Fuels and Energy, 2018/07/03, Without Invitation, English
  27. Improving permeability of whole-cell catalyst by heat-permeabilized psychrophile cells, Luo Gonglinfeng, Takahisa Tajima, Syo Nakano, Junichi Kato, 2018/01/27, Without Invitation, English
  28. Efficient conversion by psychrophile-based simple biocatalysts, Takahisa Tajima, Mai Hamada, Koji Fuki, Yutaka Nakashimada, Junichi Kato, The 23rd Symposium of Young Asian Biological Engineers' Community (YABEC 2017), 2017/10/19, Without Invitation, English, Xi'an, China
  29. Novel method to control Ralstonia solanacearum infection by targeting chemotaxis, Mattana Tunchai, Akiko Hida, Yutaka Nakashimada, Takahisa Tajima, Junichi Kato, 2017/09/12, Without Invitation, English
  30. Bioproduction by psychrophile-based simple biocatalysts, Takahisa Tajima, Mai Hamada, Koji Fuki, Yutaka Nakashimada, Junichi Kato, The 1st International Symposium on Fuels and Energy, 2017/07/11, Without Invitation, English, Hiroshima
  31. Efficient conversion system with NADH regeneration by the psychrophile-based simple biocatalyst, Kazumasa Mori, Ami Tsuzuki, Takahisa Tajima, Yutaka Nakashimada, Junichi Kato, The 1st International Symposium on Fuels and Energy, 2017/07/11, Without Invitation, English
  32. Efficient conversion of mannitol by the psychrophile-based simple biocatalyst, Kousuke Tomita, Takahisa Tajima, Kenshi Watanabe, Aki Tsunehiro, Yoshiko Okamura, Yukihiko Matsumura, Yutaka nakashimada, Junichi Kato, The 1st International Symposium on Fuels and Energy, 2017/07/11, Without Invitation, English
  33. Carboxylic acid production by psychrophlie-based simple catalyst, Luo Gonglinfeng, Takahisa Tajima, Yutaka Nakashimada, Junichi Kato, The 1st International Symposium on Fuels and Energy, 2017/07/11, Without Invitation, English
  34. Efficient conversion of carbohydrate derived from brown seaweed by psychrophile-based simple biocatalyst, Tajima T, Tomita K, Miyahara H, Watanabe K, Aki T, Okamura Y, Matsumura, Y, Nakashimada Y, Kato, The 11th Asia-Pacific Marine Biotechnology Conference, 2017/05/24, Without Invitation, English, Hawaii University
  35. Psychrophile-based Simple bioCatalyst (PSCat) for efficient bioconversion of marine biomass, Takahisa Tajima, The 3rd Japan-Hawaii Joint Workshop, 2016/11/01, Without Invitation, English
  36. Identification and characterization of chemotactic transducers for a non- natural enantiomer of malate in Ralstonia solanacearum, Tunchai Mattana, Akiko Hida, Yutaka Nakashimada, Takahisa Tajima, Junichi Kato, 17th International Biotechnology Symposium and Exhibition, 2016/10/25, Without Invitation, English, Melbourne Convention Centre, Melbourne, Australia
  37. Negative chemotactic response toward maleate in Ralstonia solanacearum, Mattana Tunchai, Akiko Hida, Takahisa Tajima, Yutaka Nakashimada, Junichi Kato, 2016/09/30, Without Invitation, Japanese
  38. Thermophilic ethanol fermentation by genetically engineered Moorella thermoacetica, Rahayu Farida, Auto Kawai, Yuki Iwasaki, Akihisa Kita, Takahisa Tajima, Junichi Kato,Yutaka Nakashimada, 2016/09/28, Without Invitation, Japanese
  39. Reconstruction of a stable anaerobic bacterial consortium capable of degrading alginate, A. Kita, T. Miura, Y. Okamura, T. Aki, Y. Matsumura, T. Tajima, J. Kato, N. Nishio, Y. Nakashimada, 3rd Asian Conference on Biomass Science, 2016/01/19, Without Invitation, English, Niigata
  40. Elucidation of the role of chemotaxis in Ralstonia solanacearum during plant-invasion stage and its application to control plant infection., Mattana Tunchai, Akiko Hida, Shota Oku, Takahisa Tajima, Yutaka Nakashimada and Junichi Kato, Gordon Research Seminar (GRS): Novel ideas on bacterial sensing of environmental cues and functional responses, 2016/01/16, Without Invitation, English, Ventura, California, USA
  41. The Production of Ethanol with Metabolism Mutant of Thermophillic Bacteria Moorella thermoacetica ATCC39073, Yuki Iwasaki, Koichiro Yoshida, Akihisa Kita, Shinsuke Sakai, Tomohiro Sho, Masahiro Saito, Katsuji Murakami, Takahisa Tajima, Junichi Kato, Yutaka Nakashimada, The 4th Joint Conference on Renewable Energy and Nanotechnology, 2015/12/06, Without Invitation, English, Ehime
  42. Effect of salt concentration on anaerobic digestion of macroalgae: a kinetic study, Tomohiro Yano, Shota Miyamoto, Toyokazu Miura, Akihisa Kita, Takahisa Tajima, Junichi Kato, Tsunehiro Aki, Yoshiko Okamura, Yukihiko Matsumura, Yutaka Nakashimada, The 4th Joint Conference on Renewable Energy and Nanotechnology, 2015/12/06, Without Invitation, English, Ehime
  43. Chemotaxis of Ralstonia solanacearum as a Target to Control Bacterial Wilt Disease, Mattana Tunchai, Shota Oku, Akiko Hida, Takahisa Tajima, Yutaka Nakashimada and Junichi Kato, Asian Congress on Biotechnology 2015 (ACB2015): Biotechnology and Bioeconomy for Sustainable Future, 2015/11/16, Without Invitation, English, Kuala Lumpur, Malaysia
  44. Identification chemoreceptor for D-malic acid, an unnatural occurred form, in Ralstonia solanacearum, Mattana Tunchai, Shota Oku, Akiko Hida, Takahisa Tajima, Yutaka Nakashimada, Junichi Kato, 2015/10/17, Without Invitation, English
  45. Bacterial chemotaxis as a strategy for survival in soil ecosystem, Junichi Kato, Shota Oku, Akiko Hida, Mattana Tunchai, Alisa Vangnai, Takahisa Tajima, 2015/10/17, Without Invitation, English
  46. Studies on chemotactic response of Ralstonia solanacearum and their application to inhibit plant infection., Mattana Tunchai, Shota Oku, Akiko Hida, Takahisa Tajima and Junichi Kato, General Meeting of American Society for Microbiology (ASM2015), 2015/05/30, Without Invitation, English, New Orleans, Louisiana
  47. Construction of simple biocatalysts for efficient bio-production, Takahisa Tajima, Koji Fuki, Mai Hamada, Yutaka Nakashimada, Junichi Kato, 7th International Congress on Biocatalysis 2014, 2014/08/14, Without Invitation, English, Technische Universität Hamburg-Harburg, Deutschland
  48. Identification of chemosensory proteins involved in root colonization of plant-growth-promoting rhizobacterium Pseudomonas fluorescens, J. Kato, S. Oku, T. Tajima, Y. Nakashimada, 15th International Biotechnology Symposium and Exhibition (IBS2012), 2012/09, Without Invitation, English, Daegu, Korea
  49. Bioproduction of catechols by Pseudomonas putida T-57, T. Tajima, T. Atsumi, N. Kataoka, D. Kudou,Y. Nakashimada, J. Kato, 15th International Biotechnology Symposium and Exhibition (IBS2012), 2012/09, Without Invitation, English, Daegu, Korea
  50. Some approaches for bioproduction of hydrophilic chemicals, J. Kato, K. Honda, A. Kuroda, T. Tajima, The 2nd iBioP Asian Symposium (iBioP2011), 2011/12/15, Without Invitation, English, Pohang, Korea
  51. Bioproduction of catechols in solvent-tolerant bacetrium Pseudomonas putida T-57 by two-phase reaction system, T. Tajima, T. Atsumi, S. Takeshita, Y. Nakashimada, J. Kato, The 2nd iBioP Asian Symposium (iBioP2011), 2011/12/15, With Invitation, English, Pohang, Korea
  52. Genetic analysis of organic solvent tolerance in Rhodococcus opacus B4, T. Tajima, A. Kita, K. Tsuruta, Y. Tojo, Y. Nakashimada, J. Kato, Asian Congress on Biotechnology 2011 (ACB2011), 2011/05/12, Without Invitation, English, Shanghai, China
  53. Development of basic technology for butanol bioproduction using organic solvent-tolerant bacterium, N. Kataoka, M. Shikaze, A. Kongpol, AS. Vangnai, T. Tajima, Y. Nakashimada, J. Kato, Asian Congress on Biotechnology 2011 (ACB2011), 2011/05/12, Without Invitation, English, Shanghai, China
  54. Bacterial chemotacxis to environmental pillutants and identification of its chemosensory proteins, J. Kato, S. Oku, A.S. Vangnai, Y. Nakashimada, T. Tajima, Asian Congress on Biotechnology 2011 (ACB2011), 2011/05/12, Without Invitation, English, Shanghai, China

Social Activities

Organizing Academic Conferences, etc.

  1. The 26th Symposium of Young Asian Biological Engineers’ Community, YABEC 2021, Executive Board, 2021/08, 2021/12
  2. The 3rd International Symposium on Fuels and Energy, Secretariat, 2018/12, 2019/08