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Type: Artigo de periódico
Title: N-Acyl-homoserine Lactones from Enterobacter sakazakii (Cronobacter spp.) and Their Degradation by Bacillus cereus Enzymes
Author: Araujo, FDS
Esper, LMR
Kuaye, AY
Sircili, MP
Marsaioli, AJ
Abstract: A chemical study of acyl-homoserine lactones (acyl-HSLs) produced by Enterobacter sakazakii resulted in the identification of three molecules: (S)-N-heptanoyl-HSL, (S)-N-dodecanoyl-HSL and (S)-N-tetradecanoyl-HSL. Mixed cultures of E. sakazakii and Bacillus cereus depleted E. sakazakii acyl-HSLs, suggesting acyl-HSL degradation by B. cereus hydrolases (hydrolysis of the lactone or amide moiety). The expression of B. cereus acyl-HSL lactonase and acyl-homoserine acylase was confirmed by monitoring the biotransformation of (S)-N-dodecanoyl-HSL into (S)-N-dodecanoyl-homoserine, dodecanoic acid and homoserine in the presence of B. cereus whole cells, using electrospray-mass spectrometry (ESI-MS).
Subject: Enterobacter sakazakii (Cronobacter spp.)
Bacillus cereus
N-acyl-homoserine lactones
foodborne diseases
Country: EUA
Editor: Amer Chemical Soc
Citation: Journal Of Agricultural And Food Chemistry. Amer Chemical Soc, v. 60, n. 2, n. 585, n. 592, 2012.
Rights: fechado
Identifier DOI: 10.1021/jf203846f
Date Issue: 2012
Appears in Collections:Unicamp - Artigos e Outros Documentos

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