Now showing items 1-5 of 5

  • Accumulation and cellular distribution of zinc by brewing yeast 

    De Nicola, Raffaele; Walker, Graeme M. (Elsevier, 2009-04)
    This study focused on the interactions between yeast and zinc in relation to beer fermentations. Yeast accumulation of zinc from growth media, including malt wort, was found to be rapid following inoculation with a brewing ...
  • Influence of zinc on distiller’s yeast : cellular accumulation of zinc and impact on spirit congeners 

    De Nicola, Raffaele; Hall, Nichola; Melville, Stuart G.; Walker, Graeme M. (Institute & Guild of Brewing, 2009)
    Accumulation of zinc by a whisky distilling yeast strain of Saccharomyces cerevisiae was studied during fermentation of malt wort and synthetic defined medium. Zinc uptake by yeast cells was very rapid in malt wort, as ...
  • Interactions between yeasts and zinc 

    De Nicola, Raffaele; Walker, Graeme M. (Springer Netherlands, 2009-04)
    Zinc is an essential trace element in biological systems. For example, it acts as a cellular membrane stabiliser, plays a critical role in gene expression and genome modification and activates nearly 300 enzymes, including ...
  • Zinc accumulation and utilisation by wine yeasts 

    De Nicola, Raffaele; Hall, Nichola; Bollag, Tatiana; Thermogiannis, Georgios; Walker, Graeme M. (Dove Medical Press, 2009-02)
    The present study has focused on the accumulation of zinc by wine yeast strains of Saccharomyces cerevisiae during fermentation of both grape juice and chemically defined medium with different carbohydrates and at varying ...
  • Zinc interactions with brewing yeast: impact on fermentation performance 

    De Nicola, Raffaele; Walker, Graeme M. (American Society of Brewing Chemists, 2011)
    The effect of zinc on brewing yeast cells was studied in relation to zinc uptake, fermentation performance and flavour congener formation. Experiments using malt wort with variable supplements of zinc salts were conducted ...