1995 Fiscal Year Final Research Report Summary
Development of Integrated Lactic Acid Total Fermentation Processes
| Project/Area Number |
06555249
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| Research Category |
Grant-in-Aid for Developmental Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
生物・生体工学
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| Research Institution | Kyushu Institute of Technology |
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Principal Investigator |
SHIMIZU Kazuyuki Kyushu Inst.Tech., Dept.of Biochem.Eng.& Sci., Prof., 情報工学部, 教授 (00150318)
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| Co-Investigator(Kenkyū-buntansha) |
HONDA Yoshihiko Yukijirushi Nyugyo Co., Sapporo Res. Inst., Manager, 札幌研究所, 主査
SONE Nobuhito Kyushu Inst.Tech., Dept.of Biochem.Eng.& Sci., Prof., 情報工学部, 教授 (20049034)
SYZUKI Masayasu Kyushu Inst.Tech., Dept.of Biochem.Eng.& Sci., Asoc.Prof., 情報工学部, 助教授 (70226554)
SYZUKI Takahiro Nagoya Res.Inst., Dept.of Ceramics Appl., Manager, セラミックス応用部, 主任研究官
TANIGUCHI Masayuki Niigata Univ., Dept.of Chem.Sys.Eng., Prof., 工学部, 教授 (00163634)
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| Project Period (FY) |
1994 – 1995
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| Keywords | Lactic acid fermentation / Total system / Ceramic bioreactor / Optimisation / Extraction process / Ion-exchange resin / Cell-recycle / ろ過培養 |
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| Research Abstract |
In the present research project, we developed an integrated lactic acid fermentation system which contains cell recycle fermentation system and the down-stream separation processes. In association with this system, we also investigated the related other research topics, Namely :
(1) High cell density culture system was developed with ceramic membrane, and 183 g-dry cell weight/L could be attained with high cell viability.
(2) The integrated fermentation system was developed which contains cell-recycle system and separation process. As the separation process, we considered to use extraction process using Alamin 336 as an extractant (oleyl alcohol was used as the solvent). It was shown to be quite important to find the pH values (4.2-4.5) for fermentation and extraction for the optimisation of total system.
Furthermore, we considered to use ion-exchange resin as the separation unit. It was shown that high cell density culture with high substrate yield could be attained with this system.
(3) An integrated on-line sensor system was developed to measure glucose and lactate on-line.
(4) On-line optimising control system was investigated.
(5) Mixed culture system using B.longum and P.freudenreichii was investigated to study the new activity of the reactor.
(6) Respiratory chain and the energy yield were investigated for microorganisms.
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Research Products
(10 results)
