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Inhibition of cellulase activity by sun_ower polyphenols

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Abstract

The cellulase-inhibitor binding constant (b) for chlorogenic, ferulic, caffeic and sinapic acids, when these compounds were present in the range of concentrations found during the aqueous extraction of sun_ower oil, was calculated. Chlorogenic acid presented a weak inhibiting power (b = 0.14 L/mmol), whereas sinapic acid conducted as the strongest inhibitor (b = 14.60 L/mmol). The inhibition effects were not additive, since in the presence of mixtures the enzyme retained 75-85% of its activity.

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Authors and Affiliations

  1. Department of Chemical Engineering, University of Santiago de Compostela, 15706, Santiago de Compostela, Spain

    J. Sineiro, M.J. Núñez & J.M. Lema

  2. Department of Chemical Engineering, Facultade de Ciencias de Ourense, University of Vigo, As Lagoas, 32004, Ourense, Spain

    H. Dominguez

Authors
  1. J. Sineiro
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  2. H. Dominguez
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  3. M.J. Núñez
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  4. J.M. Lema
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Sineiro, J., Dominguez, H., Núñez, M. et al. Inhibition of cellulase activity by sun_ower polyphenols. Biotechnology Letters 19, 521–524 (1997). https://doi.org/10.1023/A:1018377001557

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  • DOI: https://doi.org/10.1023/A:1018377001557

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