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Influence of amylose, amylopectin and pullulan on β-glucuronidase activity of starch-degrading Escherichia coli

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Abstract

Synthesis of β-glucuronidase in starch-degrading Escherichia coli (S1) was induced by amylose, amylopectin and pullulan supplied in mineral medium as the sole carbon source (1%, w/v). The maximum activity occurred after 4 days when cultures reached the stationary phase of growth, but induction was also evident during log-phase. The effects obtained with amylose, amylopectin and pullulan were higher than that obtained with maize starch.

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Authors and Affiliations

  1. Dipartimento Biologia Cellulare e Molecolare, Universitá di Perugia, Via del Giochetto, I-06126, Perugia, Italy

    G. Caldini, G. Cenci & C. Strappini

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  1. G. Caldini
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  2. G. Cenci
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  3. C. Strappini
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Caldini, G., Cenci, G. & Strappini, C. Influence of amylose, amylopectin and pullulan on β-glucuronidase activity of starch-degrading Escherichia coli. World Journal of Microbiology and Biotechnology 15, 497–499 (1999). https://doi.org/10.1023/A:1008992405277

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  • DOI: https://doi.org/10.1023/A:1008992405277

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