Development of novel carrier using natural zeolite and continuous ethanol fermentation with immobilized Saccharomyces cerevisiae in a bioreactor |
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| Authors: | Sho Shindo Susumu Takata Haruo Taguchi Noboru Yoshimura |
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| Affiliation: | (1) Akita Research Institute of Food and Brewing, 4-26 Arayasanuki Akita-city, 010-1623, Japan;(2) TDK Corporation, 2-15-7 Higashiohwada, Ichikawa, Chiba, 272-8558, Japan;(3) Faculty of Engineering and Resource Science, Akita University, 1-1 Tegata, Akita-city, 010-8502, Japan |
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| Abstract: | A natural zeolite, easily vitrified and blown at 1300 °C with a high porosity and diam. of 5–100  m, was used to immobilize Saccharomyces cerevisiae at 3.6 × 108 cells ml–1 carrier. When the abilities of natural zeolite carrier were compared with glass beads, the capacity for immobilization and alcohol fermentation activity were, respectively, 2 -fold higher and 1.2-fold higher than that of glass beads. Continuous alcohol fermentation was stable for over 21 d without breakage of the carrier. |
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| Keywords: | bioreactor ethanol fermentation immobilization Saccharomyces cerevisiae zeolite |
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