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The effect of ammonium ions and pH on the elaboration of the fungal extracellular polysaccharide, pullulan, by Aureobasidium pullulans

  • Applied Microbiology
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Summary

Effects of the absence and presence of NH +4 (50 mM) and proton concentration (pH range 4–8) on pullulan elaboration by Aureobasidium pullulans have been examined. The action of NH +4 is thought to be not as an effector of metabolic pathways, but rather as an influence on protein synthesis. The short-term effect of changes in environmental pH can be dramatic but pullulan elaboration rates, after a period of adjustment, typically about 90 min, appear to be largely the same within the pH range studied.

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Authors and Affiliations

  1. Department of Brewing and Biological Sciences, Heriot-Watt University, Chambers Street, EH1 1HX, Edinburgh, Scotland

    Marc A. Bulmer, Brian J. Catley & Patrick J. Kelly

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  1. Marc A. Bulmer
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  2. Brian J. Catley
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  3. Patrick J. Kelly
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Bulmer, M.A., Catley, B.J. & Kelly, P.J. The effect of ammonium ions and pH on the elaboration of the fungal extracellular polysaccharide, pullulan, by Aureobasidium pullulans . Appl Microbiol Biotechnol 25, 362–365 (1987). https://doi.org/10.1007/BF00252548

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  • DOI: https://doi.org/10.1007/BF00252548

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