Effect of Water Activity on Enterotoxin A Production and Growth of Staphylococcus aureus
Open Access
- 1 January 1972
- journal article
- research article
- Published by American Society for Microbiology in Applied Microbiology
- Vol. 24 (3) , 440-443
- https://doi.org/10.1128/aem.24.3.440-443.1972
Abstract
Previous studies indicated that enterotoxin B production by staphylococci was strongly inhibited by slight reductions in water activity (aw) levels. Similar studies reported herein, employing an enterotoxin A-producing strain, indicated that this organism was capable of producing enterotoxin at a much lower aw level than that required for enterotoxin B production. Staphylococcal growth rates were slowed by decreased aw levels in all media tested; however, final cell counts did not drop below 108/ml in the media with the lowest aw levels.Keywords
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