Minimal water activity for enterotoxin A production and growth of Staphylococcus aureus.
The minimal water activity (alphaw) for growth was correlated with enterotoxin A formation by two strains of Staphylococcus aureus in a salt mixture broth. Within 7 days at 30 degrees C both strains grew and formed enterotoxin A minimally between alphaw 0.864 and 0.867, but at 25 degrees C, the minimal alphaw for both activities was increased to between 0.870 and 0.887 after a 2-week incubation.
D003470:Culture Media; D004768:Enterotoxins / Q000096:biosynthesis*; D005506:Food Contamination; D005516:Food Microbiology; D013211:Staphylococcus aureus / Q000254:growth & development* / Q000378:metabolism; D013696:Temperature; D014867:Water
D003470:Culture Media; D004768:Enterotoxins; D014867:Water