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Effect of Sodium Nitrite and Sodium Chloride on Growth of Lactic Acid Bacteria

Effekten av natriumnitrit och natriumklorid på tillväxten av mjölksyrebakterier

Abstract

The effect of NaNO2 and NaCl on the growth of 24 lactic acid bacteria strains isolated from vacuum-packed cooked ring sausages were examined by analyzing different growth parameters with Bioscreen. NaNO2 had a very limited effect on the growth of lactic acid bacteria at 50 and 100 mg/l but at 400 mg/l a more pronounced inhibitory effect was found. Bacterial growth was enhanced by 1–2% (w/v) of added NaCl, while NaCl concentrations above 3% (w/v) had a clear inhibitory effect. Leuconostoc isolates seemed to be more sensitive to sodium nitrite and sodium chloride than homofermentative lactobacilli strains. Among homofermentative lactobacilli, the strains resembling Lactobacillus curvatus were more sensitive to NaCl than those resembling Lactobacillus sake.

Sammanfattning

Effekten av NaNO2 och NaCl på mjölksyrebakteriers tillväxt som hade isolerais från vakuumpackade finska falukorvar undersöktes. NaNO2 hade en mycket begränsad inverkan på mjölksyrebakteriernas tillväxt vid 50 och 100 mg/l, men vid 400 mg/l kunde en betydande inhiberande effekt konstateras. Tillsatsen av 1-2 % salt ökade bakterietillväxten, medan saltkonsentrationer over 3 % hade en klar förhindrande inverkan. Leuconostoc stammar verkar vara mera sensitiva för NaNO2 och NaCl an homofermentativa laktobasiller. Bland homofermentativa laktobasillstammar var stammar som liknade Lactobacillus curvatus mera sensitiva för NaCl än stammar som liknade Lactobacillus sake.

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Correspondence to H. Korkeala.

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Korkeala, H., Alanko, T. & Tiusanen, T. Effect of Sodium Nitrite and Sodium Chloride on Growth of Lactic Acid Bacteria. Acta Vet Scand 33, 27–32 (1992). https://doi.org/10.1186/BF03546933

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  • DOI: https://doi.org/10.1186/BF03546933

Keywords

  • Lactobacillus curvatus
  • Lactobacillus sake
  • growth
  • growth inhibition
  • bioscreen
  • lag phase
  • delta absorbance
  • gradient