Kyushu University Academic Staff Educational and Research Activities Database
List of Presentations
KENJI SAKAI Last modified date:2019.06.14

Professor / Division of Systems Bioengineering / Department of Bioscience and Biotechnology / Faculty of Agriculture


Presentations
1. KENJI SAKAI, Studies on Bacterial Community Toward Sustainable Palm Oil Industry Coexisting With Environmental and Biodiversity Conservation
, Asian Federation of Biotechnology, Malaysian Chapter, 2018.08, Complex microbial communities exists in environment such as natural forest, plantation forest, river and wastewater drainage, intestinal tracts of animals and palm rhizosphere. Also, microbial transforming processes of organic waste are generally operated with specific mixed culture system. Recent development of next generation DNA sequencing gave us a strong tool for analyzing these complex structures. After knowing structure and functions of microorganisms in these biotransformation system, we could estimate functions of the communities and improve them. Tracing specific bacteria in waste materials, animals and plant rhizosphere, with general structures in soil and river water, would provide us useful information to know impact of palm oil industry and to understand biodiversity of microorganism, fauna and flora.
The author joined SATREPS Project aiming Promotion of Green Economy with Palm Oil Industry for Biodiversity Conservation, and has been collaborated with members in UPM and UMS, Malaysia. Within ecosystems in Borneo island, a dynamic assemblage of soil, water, plants and animals which are delicately inter-connected. In this lecture, I would like to introduce three research topics our team involved: (1) Accelerating recycle of biomass waste through enhanced mixed microbial conversion process. (2) Monitoring of bacterial community in river water as an indicator for waste water discharge. (3) Investigation of biodiversity of animals and insects, with bacterial diversity in animal feces, forest soil and river water..
2. KENJI SAKAI, Microbiological Research Toward Sustainable Palm Oil Industry
Coexisting With Environmental and Biodiversity Conservation
, THE MALAYSIAN SOCIETY FOR MICROBIOLOGY, 2017.12, Microbial transforming process of organic waste are generally operated with specific mixed culture systems. Also, complex microbial communities existed in environment such as natural forest, plantation forest, river and wastewater drainage, intestinal tracts of animals and palm rhizosphere. Recent development of next generation DNA sequencer gave us a strong tool for analyzing structure of these complex microbial community. After knowing structure and functions of microorganisms in a mixed microbial biotransformation system, we could improve and control the system. If we could trace specific bacteria in the waste materials animals and plant rhizosphere, with general structures in soil and river water, they would provide useful information to know impact of palm oil industry to surrounding environment and to understand biodiversity in soil, fauna and flora.
We, Kyushu University joined SATREPS Project aiming Promotion of Green Economy with Palm Oil Industry for Biodiversity Conservation, and have been collaborated with KIT, Japan, UPM and UMS, Malaysia. Within ecosystems in Sabah, Malaysia, a dynamic assemblage of soil, water, plants and animals which are delicately inter-connected. In this lecture, I would like to introduce three microbial research topics our team involved in the project. (1) Acceleration of the total waste recycling using enhanced mixed microbial conversion process. (2) Monitoring of bacterial community in surrounding river water as an indicator for waste water discharge. (3) Investigation of biodiversity of animals (dung beetle) and bacterial diversity of mammal feces, soil and river water in primary, secondary, and palm oil forest..
3. Yukihiro Tashiro, KENJI SAKAI, Bacterial Community Analysis as a Tool in Assessing the Environmental Conservation and Biodiversity, 2nd International Symposium on Applied Engineering and Sciences (SAES2014), 2016.12.
4. KENJI SAKAI, Toward Sustainable Palm Oil Industry Coexisting With  Environmental and Biodiversity Conservation, Kenji Sakai,, 2016.09.
5. KENJI SAKAI, Exploring Thermotolerants and Thermophiles in Waste Biomass Transformation, Kenji Sakai,, 2015.07.
6. F.S.Clament Chin, Yukihiro Tashiro, KENJI SAKAI, Integrated utilization of wastes from palm oil industry
by converting with functional microorganisms

, 2nd International Symposium on Applied Engineering and Sciences (SAES2014), 2014.08.
7. KENJI SAKAI, ECOLOGICAL STUDIES ON EXTREMELY THERMOPHILES
FOUND IN ORGANIC WASTEWTER TREATMENT SYSTEM
, SOWAC2015, 2014.08.
8. KENJI SAKAI, Exploring Microbial Community Which Is Useful for Transformation of Biomass Waste, International Symposium for Biotechnology Advances, 2013.12.
9. KENJI SAKAI, Yukihiro Tashiro, Arisa Hayami, Natsuki Shimizu, ANALYSIS AND MONITORING OF MIICROBIAL COMMUNITY STRUCTURE FOR SUSTAINABLE BIOPRODUCTION, Third Joint Seminar between Water Resources University and Kyushu University , 2013.08.
10. KENJI SAKAI, Meta-Fermentation: Non-Sterilized System for Production of Fine Chemicals from Refuse, International Conference on Microbial Taxonomy, Basic and Applied Microbiology, 2012.10.
11. KENJI SAKAI, Meta-Fermentation: A New Concept for Production of Fine Chemicals from Refuse Using Mixed Culture System, 5th World Congress of Industrial Biotechnology , 2012.04.
12. KENJI SAKAI, Arisa Hayami, Vichien Kitpreechavanish, Vo-Tong Xuan, Simultaneous Production of Bioplastic and Value-Added Compost by using thermotolerant bacteria, The 6th International Symposium on the East Asian Environmental Problems, 2012.11.
13. KENJI SAKAI, Bioconversion of waste biomass for a sustainable production system, 1st China-Japan Biomass Symposium: Biotechnology for Biomass refinery and Recycle-Oriented Society, 2012.09.
14. Yukihiro TASHIRO, KENJI SAKAI, Development and control of meta-fermentation for lactic acid production from food waste biomass, 1st China-Japan Biomass Symposium: Biotechnology for Biomass refinery and Recycle-Oriented Society, 2012.09.
15. Saowanit Tongpim, Winai Jamjan, Ratchanu Meidong, KENJI SAKAI, Screening of useful microorganisms including thermotolerants from various sample sources for their valuable products, ACP Final meeting, 2012.08.
16. KENJI SAKAI, Vichien Kitpreechavanish, Saowanit Tongpim, Vo-Tong Xuan, Total Recycle of Food Waste with Production of Bioplastic and Value-Added Compost by using thermotolerant bacteria, ACP Final meeting, 2012.08.
17. Winai Jamjan, KENJI SAKAI, Yuki Okugawa, Saowanit Tongpim, In vitro antimicrobial activity of Streptomyces sp. strain C64 isolated from the conservation area of Chulabhorn dam, ACP Final meeting, 2012.08.
18. KENJI SAKAI, Total Recycle of Food Waste with Production of Bioplastic and Value-Added Compost, 5th ACP Joint Seminar 2012  , 2012.08.
19. KENJI SAKAI, Molecular analysis and control of bacterial community structure in high temperature microbial conversion process of organic waste, Agri-Expo, 2012.06.