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Conversion of cellobiose and xylose to ethanol by immobilized growing cells of Clostridium saccharolyticum on charcoal support

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Summary

An immobilization technique has been developed for the conversion of both cellobiose and xylose to ethanol, which may be considered as one stage of a process for the conversion of cellulosic biomass to ethanol. Relatively inexpensive charcoal was used as a support material, with 23 mg dry weight of Clostridium saccharolyticum cells per g dry weight of support. Tests were run for 170 h at 0.15 1/h dilution rate. From a 3% (w/v) sugar mixture, 0.7% (w/v) ethanol was obtained with over 97% cellobiose and 62% xylose utilization.

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Authors and Affiliations

  1. Division of Biological Sciences, National Research Council of Canada, K1A OR6, Ottawa, Canada

    Marcel Asther & A. W. Khan

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  1. Marcel Asther
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  2. A. W. Khan
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Asther, M., Khan, A.W. Conversion of cellobiose and xylose to ethanol by immobilized growing cells of Clostridium saccharolyticum on charcoal support. Biotechnol Lett 6, 809–812 (1984). https://doi.org/10.1007/BF00134723

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