Comparing the antimicrobial effectiveness of NaCl and KCl with a view to salt/sodium replacement |
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Authors: | Bidlas Eva Lambert Ronald J W |
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Affiliation: | aQuality and Safety Department, Nestlé Research Centre, Vers-chez-les-Blanc, Lausanne, 1000, Switzerland bCranfield Health, Cranfield University, Cranfield, Bedfordshire, MK43 0AL, UK |
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Abstract: | A study using a small range of pathogenic bacterial species (Aeromonas hydrophila, Enterobacter sakazakii, Shigella flexneri, Yersinia enterocolitica and 3 strains of Staphylococcus aureus) has shown that potassium chloride has an equivalent antimicrobial effect on these organisms when calculated on a molar basis. Combined NaCl and KCl experiments were carried out and data was analysed using a modification to the Lambert and Lambert [Lambert, R.J.W., and Lambert, R., 2003. A model for the efficacy of combined inhibitors. Journal of Applied Microbiology 95, 734–743.] model for combined inhibitors and showed that in combination KCl is a direct 1:1 molar replacement for the antimicrobial effect of common salt. If this is a general finding then, where salt is used to help preserve a product, partial or complete replacement by KCl is possible. |
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Keywords: | Predictive modelling Hurdles Salt Potassium chloride NaCl KCl |
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