ANTIBACTERIAL EFFECTS AND CELL MORPHOLOGICAL-CHANGES IN STAPHYLOCOCCUS-AUREUS SUBJECTED TO LOW ETHANOL CONCENTRATIONS

被引:7
作者
BALLESTEROS, SA [1 ]
CHIRIFE, J [1 ]
BOZZINI, JP [1 ]
机构
[1] INST NACL MICROBIOL DR CARLOS G MALBRAN,BUENOS AIRES,ARGENTINA
关键词
STAPHYLOCOCCUS-AUREUS; ANTIBACTERIAL; MORPHOLOGICAL; ETHANOL; WATER ACTIVITY; ANTIMICROBIAL;
D O I
10.1111/j.1365-2621.1993.tb04292.x
中图分类号
TS2 [食品工业];
学科分类号
0832 ;
摘要
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 almost-equal-to 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.
引用
收藏
页码:435 / 438
页数:4
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