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Multi-stage biofilm reactor for acetic acid production at high concentration

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Summary

Continuous production of acetic acid by liquid surface culture ofAcetobacter aceti M7 was investigated using a Multi-Stage Biofilm Reactor (MSBFR) composed of ten shallow flow horizontal reactors of laboratory scale. With varying dilution rate in the range from 0.049 to 0.2 h−1, the maximum exit acetic acid concentration reached was as high as 98.0 g/l at the lowest dilution rate with step feed of ethanol-rich medium to stages 3, 5, and 7. The production rate (4.3 g/l/h) was rather high considering the inhibitory effect of high acetic acid concentration. This may be ascribed to non-homogeneous distribution of acetic acid concentration in the bioreactor and step feed of ethanol-rich medium.

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Authors and Affiliations

  1. Institute of Applied Microbiology, Tokyo University, 1-1-1, Yayoi, Bunkyo-ku, 113, Tokyo, Japan

    Kiyoshi Toda

  2. Department of Biotechnology, Faculty of Engineering, Nagoya University, Furocho, Chikusa-ku, 464-01, Nagoya, Japan

    Yong Soo Park

Authors
  1. Yong Soo Park
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  2. Kiyoshi Toda
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Park, Y.S., Toda, K. Multi-stage biofilm reactor for acetic acid production at high concentration. Biotechnol Lett 14, 609–612 (1992). https://doi.org/10.1007/BF01023950

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  • DOI: https://doi.org/10.1007/BF01023950

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