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Ethanol production from cassava and sago starch using Zymomonas mobilis

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Summary

Cassava and sago starch were evaluated for their feasibilities as substrates for ethanol production using Zymomonas mobilis ZM4 strain. Before fermentation, the starch materials were pretreated employing two commercial enzymes, Termamyl (thermostable α-amylase) and AMG (amyloglucosidase). Using 2 μl/g of Termamyl and 4 μl/g of AMG, effective conversion of both cassava and sago starch into glucose was found with substrate concentration up to 30%(w/v) dry substances. Fermentation study performed using these starch hydrolysates as substrates resulted in ethanol yield at an average of 0.48g/g by Z. Mobilis ZM4.

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Authors and Affiliations

  1. Division of Biotechnology, Korea Advanced Institute of Science and Technology, P.O. Box 131, Dongdaemun, Seoul, Korea

    S. K. Rhee, G. M. Lee, Y. T. Han, Zainal Abidin Mohd. Yusof, M. H. Han & K. J. Lee

  2. Standards and Industrial Research Institute of Malaysia, Selangor, Malaysia

    Zainal Abidin Mohd. Yusof

  3. Department of Microbiology, Seoul National University, Seoul, Korea

    K. J. Lee

Authors
  1. S. K. Rhee
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  2. G. M. Lee
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  3. Y. T. Han
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  4. Zainal Abidin Mohd. Yusof
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  5. M. H. Han
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  6. K. J. Lee
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Rhee, S.K., Lee, G.M., Han, Y.T. et al. Ethanol production from cassava and sago starch using Zymomonas mobilis . Biotechnol Lett 6, 615–620 (1984). https://doi.org/10.1007/BF00135693

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  • DOI: https://doi.org/10.1007/BF00135693

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