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Ethanol production from dilute acid hydrolysate of rice hulls using genetically engineered Escherichia coli

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Abstract

Approximately 30% of rice hulls, which represent an abundant residue with little commercial value, was solubilized with 0.4 M H2SO4 acid to produce a syrup containing over 100 g monomer sugar/l. Toxins generated during hydrolysis were mitigated with Ca(OH)2. Treated hydrolysate plus additional nutrients was fermented with Escherichia coli KO11 to produce over 46 g ethanol/L in 72 h (92% of theoretical yield). © Rapid Science Ltd. 1998

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Authors and Affiliations

  1. Institute of Food and Agricultural Sciences, Department of Microbiology and Cell Science, University of Florida, Box 110700, Gainesville, USA

    Mohammed Moniruzzaman & Lonnie O. Ingram

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  1. Mohammed Moniruzzaman
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  2. Lonnie O. Ingram
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Moniruzzaman, M., Ingram, L.O. Ethanol production from dilute acid hydrolysate of rice hulls using genetically engineered Escherichia coli. Biotechnology Letters 20, 943–947 (1998). https://doi.org/10.1023/A:1005412120830

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  • DOI: https://doi.org/10.1023/A:1005412120830

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