A Membrane-Integrated Fermentation Reactor System: Its Effects in Reducing the Amount of Sub-Raw Materials forD -Lactic Acid Continuous Fermentation bySporolactobacillus laevolacticus
| Autor: | Sakayu Shimizu, Takashi Mimitsuka, Masahiro Henmi, Kyungsu Na, Ken Morita, Katsushige Yamada, Hideki Sawai, Tetsu Yonehara, Shinichi Minegishi |
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| Rok vydání: | 2012 |
| Předmět: |
Time Factors
Raw material Applied Microbiology and Biotechnology Biochemistry Analytical Chemistry Bioreactors Continuous fermentation Yeasts Reactor system D-Lactic Acid Lactic Acid Molecular Biology Bacillales Sporolactobacillus laevolacticus Chemistry Organic Chemistry food and beverages Membranes Artificial General Medicine Pulp and paper industry carbohydrates (lipids) Membrane Scientific method Fermentation Biotechnology |
| Zdroj: | Bioscience, Biotechnology, and Biochemistry. 76:67-72 |
| ISSN: | 1347-6947 0916-8451 |
| DOI: | 10.1271/bbb.110499 |
| Popis: | Continuous fermentation by retaining cells with a membrane-integrated fermentation reactor (MFR) system was found to reduce the amount of supplied sub-raw material. If the amount of sub-raw material can be reduced, continuous fermentation with the MFR system should become a more attractive process for industrialization, due to decreased material costs and loads during the refinement process. Our findings indicate that the production rate decreased when the amount of the sub-raw material was reduced in batch fermentation, but did not decrease during continuous fermentation with Sporolactobacillus laevolacticus. Moreover, continuous fermentation with a reduced amount of sub-raw material resulted in a productivity of 11.2 g/L/h over 800 h. In addition, the index of industrial process applicability used in the MFR system increased by 6.3-fold as compared with the conventional membrane-based fermentation reactor previously reported, suggesting a potential for the industrialization of this D-lactic acid continuous fermentation process. |
| Databáze: | OpenAIRE |
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