Characterization of Dicarboxylic Acids for Cellulose Hydrolysis

Authors

  • Nathan S. Mosier,

    1. Department of Agricultural and Biological Engineering, Purdue University, West Lafayette, Indiana 47907
    2. Laboratory of Renewable Resources Engineering, Purdue University, West Lafayette, Indiana 47907
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  • Ayda Sarikaya,

    1. Laboratory of Renewable Resources Engineering, Purdue University, West Lafayette, Indiana 47907
    2. Department of Biomedical Engineering, Purdue University, West Lafayette, Indiana 47907
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  • Christine M. Ladisch,

    1. Textile Science, Department of Consumer Sciences and Retailing, Purdue University, West Lafayette, Indiana 47907
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  • Michael R. Ladisch

    Corresponding author
    1. Department of Agricultural and Biological Engineering, Purdue University, West Lafayette, Indiana 47907
    2. Laboratory of Renewable Resources Engineering, Purdue University, West Lafayette, Indiana 47907
    3. Department of Biomedical Engineering, Purdue University, West Lafayette, Indiana 47907
    • Department of Agricultural and Biological Engineering, Purdue University, West Lafayette, Indiana 47907
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Abstract

In this paper, we show that dilute maleic acid, a dicarboxylic acid, hydrolyzes cellobiose, the repeat unit of cellulose, and the microcrystalline cellulose Avicel as effectively as dilute sulfuric acid but with minimal glucose degradation. Maleic acid, superior to other carboxylic acids reported in this paper, gives higher yields of glucose that is more easily fermented as a result of lower concentrations of degradation products. These results are especially significant because maleic acid, in the form of maleic anhydride, is widely available and produced in large quantities annually.

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