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  • Title: Repression of Staphylococcus aureus by food bacteria. I. Effect of environmental factors on inhibition.
    Author: TROLLER JA, FRAZIER WC.
    Journal: Appl Microbiol; 1963 Jan; 11(1):11-4. PubMed ID: 13994250.
    Abstract:
    The effects of environmental factors on the inhibition of an enterotoxin-producing strain of Staphylococcus aureus by food bacteria were investigated. Type of medium and temperature of incubation were important factors in determining the amount of inhibition. The pH range of maximal inhibition was found to be 7.4 to 6.2. Availability of oxygen was not a factor. As the ratios of inhibitor to staphylococcus were increased from 1:1 to 10:1 and 100:1, the amount of inhibition was markedly increased. Inhibition occurred in custard, where it increased with increasing ratios of effector to staphylococcus. The repression of the staphylococcus in all media usually was sufficient to be of practical significance.
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