Antibacterial effects and cell morphological changes in Staphylococcus aureus subjected to low ethanol concentrations.
1993
Ballesteros S.A. | Chirife J. | Bozzini J.P.
Ethanol in low concentrations (5-10% weight) affected aerobic growth (at 37 degrees C) of two strains of Staphylococcus aureus. Growth inhibition in laboratory media was observed with ethanol about 6-7% weight water activities (a(w)) of approximately 0.97. This suggested that the ethanol antibacterial effect was not only from its a(w) lowering ability. Electron microscopy observations showed intense morphological modifications in cells in broth with 5% to 6.5% ethanol, and clearly indicated that cell wall changes of S. aureus was partly responsible for the antibacterial action of ethanol.
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