Fast induction of nisin resistance in Streptococcus thermophilus INIA 463 during growth in milk

Streptococcus thermophilus INIA 463 became nisin-resistant after exposure in skim milk to subminimal inhibitory concentrations of nisin (1–3 IU/ml) for less than 2 h. Addition of 20 IU/ml caused a 4 log unit decrease in S. thermophilus counts of a culture not exposed previously to nisin, whereas no...

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Veröffentlicht in:	International journal of food microbiology 2004-11, Vol.96 (2), p.165-172
Hauptverfasser:	Garde, Sonia, Ávila, Marta, Medina, Margarita, Nuñez, Manuel
Format:	Artikel
Sprache:	eng
Schlagworte:	Animals antibacterial proteins Biological and medical sciences Cell wall Cell Wall - drug effects Cell Wall - ultrastructure cell walls Colony Count, Microbial culture media Drug Resistance, Bacterial enzyme activity Food industries Food microbiology Fundamental and applied biological sciences. Psychology induced resistance Inducible mechanism lactic acid bacteria microbial growth Microbial Sensitivity Tests Microscopy, Electron, Transmission - methods Milk - microbiology Milk and cheese industries. Ice creams minimum inhibitory concentration nisin Nisin - pharmacology Nisin resistance nisinase activity plate count resistance mechanisms skim milk Streptococcus thermophilus Streptococcus thermophilus - drug effects Streptococcus thermophilus - physiology Streptococcus thermophilus - ultrastructure transmission electron microscopy ultrastructure
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