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Direct fermentation of starch to lactic acid byLactobacillus amylovorus

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Summary

Fermentation production of lactic acid directly from starch was studied in a batch fermentor usingLactobacillus amylovorus. At an initial concentration of 120 g/L starch, 96.2 g/L of lactic acid was produced from liquefied starch in 20 hours while 92.5 g/L of lactate was produced from the raw starch in 39 hours. High initial glucose levels (100 g/L) in the medium inhibited the organism, unless it had been adapted by growing it in a low-glucose medium. The direct production of lactic acid from starch could reduce overall production costs significantly.

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Authors and Affiliations

  1. Department of Food Science, University of Illinois at Urbana-Champaign Agricultural Bioprocess Laboratory, 1302 W. Pennsylvania Avenue, 61801, Urbana, Illinois, USA

    D. X. Zhang & M. Cheryan

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  1. D. X. Zhang
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  2. M. Cheryan
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Zhang, D.X., Cheryan, M. Direct fermentation of starch to lactic acid byLactobacillus amylovorus . Biotechnol Lett 13, 733–738 (1991). https://doi.org/10.1007/BF01088178

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  • DOI: https://doi.org/10.1007/BF01088178

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