| Literature DB >> 4596379 |
L R Smolka, F E Nelson, L M Kelley.
Abstract
The effect of pH level and NaCl concentrations, alone and in combination, on the enumeration of unstressed and heat-stressed cells of three strains of Staphylococcus aureus was determined. A definite narrowing of the optimum pH range for enumeration of both unstressed and heat-stressed cells was observed as the NaCl concentration was increased from 0.0 to 7.5%. Counts of unstressed cells diminished only slightly with increases in NaCl, whereas heat-stressed cells showed a marked sensitivity to NaCl concentrations of 4% and above, regardless of the pH level. Because of this sensitivity to NaCl, recoveries were far poorer than with unstressed cells at NaCl concentrations of 4% and above.Entities:
Mesh：
Substances：
Year: 1974 PMID： 4596379 PMCID： PMC380062 DOI： 10.1128/am.27.3.443-447.1974
Source DB: PubMed Journal: Appl Microbiol ISSN： 0003-6919